[Bug 1432194] Re: Graphics unstable on ubuntu 14.04 using Intel HD Graphics 5500

[John doe]

** Summary changed:

- Graphics unstable on ubuntu 14.04 on thinkpad 450s using Intel HD Graphics 5500
+ Graphics unstable on ubuntu 14.04 using Intel HD Graphics 5500

** Also affects: xserver-xorg-video-intel
Importance: Undecided
Status: New

** Also affects: ubuntu
Importance: Undecided
Status: New
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[Michael Holler]

** Summary changed:

- Graphics unstable on ubuntu 14.04 using Intel HD Graphics 5500
+ Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics 5500
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[Michael Holler]

Has anyone tried the Intel graphics installer that seth mentioned in his
original post?

* Intel(R) Graphics Installer for Linux* 1.0.7 --
https://01.org/linuxgraphics/downloads/2014/intelr-graphics-installer-
linux-1.0.7

There seems to be a new version, too. Maybe this is fixed in that:

* Intel(R) Graphics Installer for Linux* 1.0.8 --
https://01.org/linuxgraphics/downloads/2015/intelr-graphics-installer-
linux-1.0.8
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[seth goldstein]

1.0.8 will not work on 14.04. I tried it on 14.10 and it complained and
woudn't load.
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[John doe]

I had 1.0.8 installed on Ubuntu 14.04 before it was made impossible
(because of potential problem with backported graphic stack on 14.04.2).
Anyway it was well installed and the missing letter bug was also
present. Note that Intel driver is not annonced as compatible for HD
graphic 5500.
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[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: ubuntu
Status: New => Confirmed
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[girisha]

has anyone experienced this bug on Gnome or Xfce?
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[Michael Holler]

Judging by the bug attachments, it looks like Unity and LXDE are
confirmed so far.
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[Luke Darnell]

I see similar to this on a Dell E7450.

Symptoms include:
- title bar corruption (title_bar_corruption.png)
- incorrectly rendered fonts
- incorrectly spaced fonts (similar to screenshot here - http://askubuntu.com/questions/594451/14-04-thinkpad-t450-text-getting-messed-up-on-large-screens)


sandy:~ $ lspci -nnk | grep '\[03' -A2
00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09)
Subsystem: Dell Device [1028:062e]
Kernel driver in use: i915



** Attachment added: "title_bar_corruption.png"
Loading Image...
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[seth goldstein]

I can confirm that it is also happening on KDE (version 4.14.1) running
ubuntu 14.10 and kernel 3.16.0-33-generic
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[John doe]

Sad but seems to work solution: disabling SNA for old XUA method (as
described here:
https://wiki.archlinux.org/index.php/Intel_graphics#SNA_issues).

It seems it works better (for now) with UXA method, but it's a sad story
as performance drops a little (and it is worthy...)
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[seth goldstein]

I was going to try out John's suggestion, but it seems that I don't have
xf86-video-intel installed on my system. So, should I try and install
it (and if I do, can I remove it easily?) and if I install it, should i
take the suggestion above?
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[Luke Darnell]

As per the comment from "John doe", switching the intel X11 driver
AccelMethod to uxa fixed the problem for me.
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[Michael Holler]

Is the workaround much of a performance drop? In any case, it's good
there is at least a workaround.
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[Luke Darnell]

Noticeably slower than sna when alt-tab'ing between applications.
But better than corrupted text and/or graphics.
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[seth goldstein]

Since I don't have xf86-video-intel installed, is there a way to disable
sna on what I am using? Should I switch? I am attaching my xorg.log.

** Attachment added: "xorg.log for t450s with video corruption"
https://bugs.launchpad.net/linux/+bug/1432194/+attachment/4369374/+files/Xorg.0.log
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[Robert Erdin]

I can confirm that the fix from comment #28 works for me. Don't notice
any difference in performance but don't do anything that would require
any noticeable graphics performance.
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[girisha]

as mentioned in #33, I also don't have xf86-video-intel installed. tired
installing it and its not possible to install as there are unmet
dependencies
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[John doe]

Switching from SNA to UXA downgrade 2D day-to-day performances as SNA is the not-so-new default acceleration method for recent Intel graphics card (as in my case Broadwell HD 5500). More info about performances here :
http://www.phoronix.com/scan.php?page=article&item=intel_2dxorg30_ubuntu1404&num=1

For example, at startup, the only icon folder on my desktop is now
displayed slowly with UXA rather than SNA. However as Luke #32 said
before this is better to have this workaround than missing letters
problem, but it's only a workaround, not a real solution.

@girisha #35: forget about xf86-video-intel, your xorg.log show you have Intel driver :
3.831] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20080730
[ 3.831] (II) intel(0): SNA compiled: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.2 (Maarten Lankhorst <***@ubuntu.com>)

In any case, try to create the following folder:
sudo mkdir /etc/X11/xorg.conf.d/

Then create inside the new folder a file named for example "20-intel.conf" with the following content:
Section "Device"
Identifier "Card0"
Driver "Intel"
Option "AccelMethod" "uxa"
EndSection

Then reboot and voila. If something goes wrong (if X server failed for
example), you just have to delete the 20-intel.conf to revert back.
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[girisha]

@John doe #36: thank you very much for the reply. I will try it out :)
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[Fluepke]

I am running Ubuntu GNOME with kernel 4.0.0-040000rc7 on a T450s. I
could solve the issue of missing letters by changing font hinting to
medium or slight in the gnome-tweak-tool. But I am still experiencing
rendering issues sometimes. Will try out the fix.
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[John doe]

Do you mean that by modify font size the missing letter prb is
permanently solve or were you modify the font when the prb occurs to
temporary resolve it?

As the problem seems to be a mixtape between kernel, Intel Driver,
glib2, etc. I was hoping it may be solve using kernel 4.0 so thanks to
have reported that it's not the case.
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[seth goldstein]

I can confirm that the temporary fix john proposed is working well under kubuntu 14.10 on my T450s. Particulars:
KDE: Platform Version 4.14.1, Ubuntu: 14.10, Kernel: 3.16.0-33-generic
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[Fluepke]

Well, when I was using an older kernel I applied this tweak, always when font rendering was messed up. Since Kernel 4.0 I haven't had letters disappearing.
But sometimes I still have rendering issues. I did not yet apply the mod suggested in #28.
I have attached an example.

** Attachment added: "example.png"
Loading Image...
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[Michael Holler]

Can anybody explain why John doe's 20-intel.conf has Identifier "Card0"
instead of Identifier "Intel Graphics" like these other sources suggest?

https://wiki.archlinux.org/index.php/Intel_graphics#SNA_issues
https://lists.ubuntu.com/archives/lubuntu-users/2014-April/007019.html
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[Michael Holler]

I should also add that I have tried John's method and it seems to be
working well. I will report back if I find any more graphical
corruption.
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[John doe]

Because "Identifier" is only a label to name a component inside x.org
conf file. In fact you may put what you want as value as long as you re-
use the same when you want to refer to the component.
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[Moritz Reiter]

Downgrading to UXA instead of SNA as John doe suggested works for me
too.

But the implications for performance are considerable. Just to name two
examples: after logging in it takes about 10 seconds until the Desktop
is loaded and resizing a Terminal window (solid background colour) is
difficult due to severe lagging. Both of these performance issues do not
exist with SNA. But of course this is still better than missing
characters.

I'm running Ubuntu 14.04.02 on a Thinkpad T450s with Ultra Dock.

I should also mention: Before I was using the Ultra Dock, I was hooking
the Thinkpad via DisplayPort to the external monitor. With that set up,
the missing character problem did occur very rarely. Now the Thinkpad is
hooked to the external Display via Ultra Dock and DVI cable and with
this set up there are so many characters missing after every log in and
so severe rendering problems that it's utterly unusable.

Thanks John doe, for the workaround, it makes my set up at least usable
but I hope there's a chance to see a proper fix in Ubuntu 14.04.
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[John doe]

I revert back to SNA since kernel 3.16.0-34 and liboxide updates (3 days
ago) on Ubuntu 14.04.2.

Chance or not, no prb occurs since theses updates: as the problem was
not so frequent I'll wait a few days before to say if it works because I
don't see any good reasons :)

If someone else could try to revert back to SNA afeter updates, it also
could be cool.
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[John doe]

Forget previous post: the bug occurs again with SNA :(
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[John doe]

Does anybody try Intel driver 2.99.917, as shiped for example with
Ubuntu Vivid Vervet?
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[Robert Foerster]

I have a Thinkpad X1 Carbon (3rd gen) here with many rendering and
distortion issues on latest ubuntu 14.04.

I have recurring issues with both missing characters and distorted
characters.

I have these issues on the inbuilt WQHD display and on an external
monitor connected to HDMI.
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[Yang Yang]

I just got a new X1 carbon 3 gen (intel i5 5300, 2560x1440, intel 5500
graphics) and installed ubuntu 14.04 (3.16.0-34-generic). I experienced
all same problems list above and still can not fixed them by any methods
listed above. Just to confirm this bug also exist in X1 carbon 3 gen.
Thanks!
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[Yang Yang]

@John doe (r9-launchpad-fq) #39: It is solved temporarily. After you
restart, it might appear again. Or if you connect to an external
monitor, it also appears. Each time, you select a different scale of
font, rendering comes back to normal. However, when you choose scale
back, the bug returns again.
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[John doe]

@Yang Yang: did you try #36?
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[Robert Foerster]

I did #36 and so far, no distortion on the laptop display or external
monitor.
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[Yang Yang]

@John doe: I tried but it seems not working. :-(
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[Yang Yang]

@John doe: I created the file at this place: /usr/share/X11/xorg.conf.d,
and it works! But it is slow and also the external monitor's resolution
is different from previous. I have no idea to get original resolution
now. At least, it works!
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[faceman]

I confirm that this is a problem on XFCE as well. I'm on a Carbon X1 3rd
gen, and got the corrupted characters and other artifacts/missing
objects (Icons, ui elements, etc).

I used the SNA workaround, and have been bothered by the slow
performance ever since. Specifically, scrolling in most apps (most
notably in a browser) is excruciatingly slow. The time it takes to
render anything on screen is really noticeable (and by noticeable I mean
painful.)

I use this laptop for work in Inkscape, Gimp, Scribus for graphics
layouts, etc, and it's only barely usable compared to my 6-year-old x100
original. It's the main issue which keeps this from being an awesome
Linux laptop.

Any idea on whether the Intel drivers are supposed to get some attention
for this?
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[John doe]

Hello Chris,
I don't now if I'm right to do like this but this bug makes it almost impossible daily use of new laptops and this is why I allowed myself to assign it to you. Feel free to contact me for any useful details, regards.

** Changed in: xserver-xorg-video-intel
Status: New => Confirmed

** Changed in: xserver-xorg-video-intel
Assignee: (unassigned) => Chris Wilson (ickle)
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[John doe]

** Changed in: xserver-xorg-video-intel
Assignee: Chris Wilson (ickle) => (unassigned)
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[John doe]

So it seems it has been fixexxxxs in upstream several months ago:
https://bugs.freedesktop.org/show_bug.cgi?id=90047

Anybody from Ubuntu team here?

Also, if someone may try with more updated drivers as theses, maybe it fixes the issue:
https://launchpad.net/~ubuntu-x-swat/+archive/ubuntu/x-updates


** Bug watch added: freedesktop.org Bugzilla #90047
https://bugs.freedesktop.org/show_bug.cgi?id=90047
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[John doe]

*** This bug is a duplicate of bug 1444436 ***
https://bugs.launchpad.net/bugs/1444436

** This bug has been marked a duplicate of bug 1444436
[BDW GT3] Backport fixes to unbreak X
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[milegrin]

*** This bug is a duplicate of bug 1444436 ***
https://bugs.launchpad.net/bugs/1444436

Confirmed bug on Lenovo E550 i7 16GB with Intel i915 video configured to
use 1GB RAM.

Predominantly appears when plugging in an external Samsung S23C350
screen before boot/power on however plugging it in once logged it. Thus
far the bug has only once occurred when the external screen is not
plugged (only had the notebook a few days).

bug #1444436 refers to the same/similar issue but the fix provided has
not fixed my installation using xserver-xorg-video-intel-lts-utopic ver
2.99.914-1 (Comment #8 on bug #1444436 mentions that fix is not for
utopic - possibly why the fix did not work for me)

https://bugs.freedesktop.org/show_bug.cgi?id=90047 mentioned that a fix
was produced multiple months ago and Ubuntu notified but I can't find
it.

<code>
***@u1404:~/# uname -a
Linux u1404 3.16.0-34-generic #47~14.04.1-Ubuntu SMP Fri Apr 10 17:49:16 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
***@u1404:~/# lshw -c video
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: ***@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:63 memory:d0000000-d0ffffff memory:a0000000-bfffffff ioport:5000(size=64)
***@u1404:~/# modinfo i915 | head
filename: /lib/modules/3.16.0-34-generic/kernel/drivers/gpu/drm/i915/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Tungsten Graphics, Inc.
srcversion: 4623F6696D48BF78FB054D5
alias: pci:v00008086d000022B3sv*sd*bc03sc*i*
alias: pci:v00008086d000022B2sv*sd*bc03sc*i*
alias: pci:v00008086d000022B1sv*sd*bc03sc*i*
alias: pci:v00008086d000022B0sv*sd*bc03sc*i*
alias: pci:v00008086d0000162Dsv*sd*bc03sc*i*
***@u1404:~/# lspci -nnk | grep '\[03' -A2
00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09)
Subsystem: Lenovo Device [17aa:5021]
Kernel driver in use: i915
--
05:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Opal XT [Radeon R7 M265] [1002:6604] (rev ff)
Kernel driver in use: radeon
06:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader [10ec:5227] (rev 01)
***@u1404:~/# dpkg -l | grep -i video-intel
ii xserver-xorg-video-intel-lts-utopic 2:2.99.914-1~exp1ubuntu4.2~trusty1 amd64 X.Org X server -- Intel i8xx, i9xx display driver
***@u1404:~/#
</code>
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[Timo Aaltonen]

** This bug is no longer a duplicate of bug 1444436
[BDW GT3] Backport fixes to unbreak X
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[Luke Darnell]

Still no fix for this issue.
It would be awesome to enable the sna driver to improve graphics performance.
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[girisha]

I am using 15.04 for the past two days. I am yet to get the issue.
Updated from 14.04 since my thinkpad was giving me the aforementioned
issues
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[John doe]

So Bug #1374389 is supposed to fix this issue, but installing updated
kernel from it (Bug #1374389, available for all in updates!) introduce
the kernel won't boot Bug #1449401 for me and others.

When #1449401 will be fixed I will report here if updated kernel from
Bug #1374389 fix or not this HD Graphics issue.
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[Michael Holler]

@girisha Is UXA working for you on 15.04 or just SNA?
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[Luke Darnell]

I just updated my 14.04 to 3.16.0-36-generic
And now ubuntu fails to boot unless I select the recovery option.
And then I can start unity but it doesn't display on the connected monitor, just the laptop screen.

If I drop back to 3.16.0-34-generic I can boot as normal and the connected monitor works.
But the sna X11 option is still causing issues on 3.16.0-34-generic
And I need to use the uxa option to get a usable system.

Does LTS actually mean Long Term Support?
As per @girisha seems like this bug has as been fixed on 15.04
Should I just move to 15.04?
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[Eoin]

Seeing the same behaviour as @q-luke on a Thinkpad L450. Dropping back
to 3.16.0-34-generic is my workaround for the moment.
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[Jordan]

Same exact problem that happened with @q-luke and @eoingillen happened
to me as well on a G50-80. Very frustrating...
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[girisha]

@Michael I didn't change anything after installation. So it should be
SNA right?

@Luke, I have been using 15.04 for a while on my thingkpad X1 carbon 3rd
gen. So far I have not got the missing letter issue. And in 15.05 the
special keys (brightness + wifi), the touch pad and the trackpad all
worked perfectly without any configuration needed
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[girisha]

Furthermore, I think its not 15.04 that fixes the issue.. Its the kernel
3.19. If you read the description about whats new in 3.19 they
specifically talk about intel broadwell graphics support
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[Torsten Harenberg]

Running 14.04.2 on a X1 Carbon 3rd gen, suffering from the same
problems. Especially when an external screen is attached, Thunderbird
has corrupted fonts when opening directly on the external screen. If I
open Thunderbird on the internal screen and move it over to the
external, all is fine. Firefox also suffers from that (same rendering
engine?), especially Google maps. Chromium doesn't show that behaviour.

As suggested in #67, #68 upgraded now to 3.19.0-12-generic. That makes
the system at least bootable without having to break into the recovery
mode (#64). And all the special keys now work :).

But, the graphics problems are still there. I will try to add two
screenshots. Maybe 15.04 has some more changes than just the kernel? I
haven't tried that release yet, would love to stick with 14.04.



** Attachment added: "Thunderbird opened on external screen"
Loading Image...
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[Torsten Harenberg]

Just a follow up on #69 to attach the 2nd screen shot.


** Attachment added: "Google Maps on Firefox (doesn't matter if external or internal screen)"
Loading Image...
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[girisha]

Torsten. I also tried updating the kernel to 3.19 (on 14.04) first
rather than installing 15.04. But once I updated and rebooted my wifi
stopped working (the driver was not detected). Afterwards I did a fresh
install of 15.04 and it has been over a week and I have no font issues..

I think you can first try using a live usb with 15.04 and use it for a
while and see if you get any issues.
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[Torsten Harenberg]

grisha,

you can get the Wifi running, "only" the firmware is missing:

git clone https://kernel.googlesource.com/pub/scm/linux/kernel/git/firmware/linux-firmware
cd~/linux-firmware
sudo cp iwlwifi-7265D-1* /lib/firmware/

But I updated yesterday evening to 15.04. You are right, font problems
are finally gone now :). Thanks for testing this.

(Although I would have loved to stick with the LTS version)
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[Luke Darnell]

Hello Ubuntu people??
Is anyone listening???

14.04 is currently a pile of crap on broadwell laptops.
Is anyone looking?
Or is LTS just lip service?
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[Yang Yang]

upgrade my x1 carbon 3rd to 15.04 and all problems are gone. for those who
can upgrade easily (not need to backup or config a lot), maybe this is a
good choice.

Post by Luke Darnell
Hello Ubuntu people??
Is anyone listening???
14.04 is currently a pile of crap on broadwell laptops.
Is anyone looking?
Or is LTS just lip service?
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Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics
5500
New
Confirmed
Confirmed
Trying to achieve: Get a more stable graphics environment up and
running
Steps to take: basic ubtuntu 14.04 install. Boot up and run for a
few minutes and then ...
What happens: After running for a few minutes the graphics gets
flacky.
What should happen: Graphics should not get flaky.
I have just installed ubuntu 14.04 on my new thinkpad t450s.
Everything basically works, but something is very flaky about my
keyboard or display or both. After running for awhile some apps
(E.g., thunderbird and sometimes emacs for example) will display
garbage. If I refresh by moving the screen around or changing
buffers/tabs/etc. they can often recover.
I see that there is an [Intel(R) Graphics Installer for Linux*
1.0.7](https://01.org/linuxgraphics/downloads/2014/intelr-graphics-
installer-linux-1.0.7). I am leery about just loading this and running
it. Any suggestions about how I should proceed?
$ sudo lshw -c video
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:63 memory:e0000000-e0ffffff
memory:d0000000-dfffffff ioport:3000(size=64)
$ modinfo i915 | head
/lib/modules/3.16.0-31-generic/kernel/drivers/gpu/drm/i915/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Tungsten Graphics, Inc.
srcversion: 9929027A8A6F05972AD6986
alias: pci:v00008086d000022B3sv*sd*bc03sc*i*
alias: pci:v00008086d000022B2sv*sd*bc03sc*i*
alias: pci:v00008086d000022B1sv*sd*bc03sc*i*
alias: pci:v00008086d000022B0sv*sd*bc03sc*i*
alias: pci:v00008086d0000162Dsv*sd*bc03sc*i*
$ uname -a
Linux mypad 3.16.0-31-generic #43~14.04.1-Ubuntu SMP Tue Mar 10
20:13:38 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
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[Yang Yang]

upgrade my x1 carbon 3rd to 15.04 and all problems are gone. for those
who can upgrade easily (not need to backup or config a lot), maybe this
is a good choice.
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[Gerry Donlon]

Same issue here....bitten by both bugs on a Toshiba Satellite
E45-B4100..

3.16.0.34 - garbled text, inability to even upgrade to proprietary
Intel drivers for the HD5500...3d rendering of applications like google
maps or steam browser are broken and distorted.

Upgrading to kernel 3.16.0.36 results in boot lockup.

Installing 15.04 (3.19.0-15-generic) and the video is normal...no more
missing text or weird artifacting of folders on the desktop. Too bad
this isn't fixed in LTS as either bug renders the laptop fairly unusable
or unstable.
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[Timo Aaltonen]

kernels up to and including 3.16.0-37.50 are broken, -37.51 will fix the
boot issue too (caused by a backport fail)
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[Timo Aaltonen]

** No longer affects: xserver-xorg-video-intel

** Package changed: ubuntu => xserver-xorg-video-intel (Ubuntu)

** Also affects: xserver-xorg-video-intel (Ubuntu Utopic)
Importance: Undecided
Status: New

** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Fix Released
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[Timo Aaltonen]

seth: do you still have the bug with xserver-xorg-video-intel
2.99.914-1~exp1ubuntu4.3 and kernel from

http://koti.kapsi.fi/~tjaalton/bdw/

and check that you don't have a GPU hang reported in dmesg when the
corruption starts

This bug has become a meta bug with all sorts of issues and handwaving.
Most are probably fixed by the new kernel, some SNA backports to -intel
might still be necessary.

** Changed in: xserver-xorg-video-intel (Ubuntu Utopic)
Status: New => Incomplete

** Changed in: xserver-xorg-video-intel (Ubuntu Utopic)
Assignee: (unassigned) => Timo Aaltonen (tjaalton)
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[Moritz Reiter]

I still get the missing characters and rendering issues in Trusty with
kernel 3.16.0-37.51.

$ uname -a
[...] 3.16.0-37-generic #51-Ubuntu [...]

$ sudo aptitude show xserver-xorg-video-intel-lts-utopic
Package: xserver-xorg-video-intel-lts-utopic
State: installed
Automatically installed: yes
Version: 2:2.99.914-1~exp1ubuntu4.3~trusty1

Still have to fall back to UXA to have a system I can work with.
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[Dragos Vingarzan]

Confirmed in xfce. But messing around with the font size makes some
things bearable - fonts are not that much affected, but still big parts
of the screen do not refresh properly.
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[John doe]

As Moritz, I still get the missing characters in Trusty with following
packages and SNA enabled:

$ uname -a
Linux [snip] 3.16.0-37-generic #51~14.04.1-Ubuntu SMP Wed May 6 15:23:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

$ dpkg -l | grep video-intel | grep ii
ii xserver-xorg-video-intel-lts-utopic 2:2.99.914-1~exp1ubuntu4.3~trusty1 amd64 X.Org X server -- Intel i8xx, i9xx display driver

@timo: Does your kernel packages differ from .51?
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[Timo Aaltonen]

then file new bugs, your issues are not what this was about... and test
15.04 too

no need to test my kernel anymore, -37.51 has everything
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[Bernd Schlapsi]

So 15.04 is the answer?
"New" hardware and no change to use the LTS version? That doesn't sound right?! Or do we have to wait for 14.04.3 for a newer kernel? -> https://wiki.ubuntu.com/Kernel/LTSEnablementStack#Kernel.2BAC8-Support.A14.04.x_Ubuntu_Kernel_Support
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[John doe]

@timo: i'm confident that my bug is related to the one reported by seth in this bug issue:
seth bug screenshot: Loading Image...
my bug screenshot: Loading Image...

Of course it will not be the case if seth issue is fixed.

@seth: does the kernel 37.51 fix your issue ? if not, I think we may
keep open this bug report no?
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[Moritz Reiter]

I have to agree with Bernd and John. The problems I'm experiencing to my
understanding match the description of this report and the many
screenshots people attached here perfectly. And they persist with the
most current packages in the official repositories. It may be due to a
lack of technical understanding on my side, but I don't understand how
this issue could be regarded as resolved.

People already reported that the rendering and font issues don't occur
in 15.04. But I'm using LTS for a reason. And it's not like Intel's HD
5500 would be some obscure, negligible piece of hardware.

But if for whatever reason this issue should not be regarded as
important enough to get further investigation, it would be nice to know,
just to make an informed decision. Because in that case I would probably
prefer switching to 15.04.
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[Timo Aaltonen]

Feel free to bisect xserver-xorg-video-intel between 2.99.914..2.99.917
if it's fixed in 15.04 (which has .917). Only when something has been
identified to fix something it'll be SRU'd.

I can't reproduce any of the issues with current utopic-proposed (or the
equivalent lts backports), and I have the same GPU on my laptop.
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[John doe]

is thje problem present with xserver-xorg-video-intel
2:2.99.910-0ubuntu1.6 on Trusty? If not, I would be happy to revert back
to original Trusty package (and leave LTS enablement stack).
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[Timo Aaltonen]

only you can tell:

apt-get remove .*lts-utopic
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[Moritz Reiter]

Had time to experiment a little bit more. Turns out I can now only
reproduce the rendering and font issues when the T450s is attached to
the Ultra Dock docking station (which is how I most of the time use it).

When I remove the laptop from the Ultra Dock and reboot, everything
seems fine. As soon as I attach it to the Dock again, rendering and font
errors start to occur and seem to gradually get worse the longer I keep
closing and opening apps.

When booting with the laptop attached to the Dock it's worst and the
system is utterly unusable right from the start.
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[wmgroot]

I am using a Thinkpad t450s and also experiencing these symptoms on
3.16.0-37-generic #51~14.04.1-Ubuntu. The issues are immediately
apparent after logging in. UXA is a functional workaround, but I would
much prefer the performance of SNA.
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Title:
Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics
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[brokeasshachi]

I was able to resolve this on trusty doing the following:

sudo apt-get install xserver-xorg xserver-xorg-video-intel (and all the
depends)

then reboot.


Just FYI, i'm on -30 kernel, and using ubuntu-mate as as desktop.

Linux dave-ot-trusty 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15
17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux


~ % dpkg -l xserver-xorg
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii xserver-xorg 1:7.7+1ubunt amd64 X.Org X server

~ % dpkg -l xserver-xorg-video-intel
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii xserver-xorg-v 2:2.99.910-0 amd64 X.Org X server -- Intel i8xx, i9x

~ % dpkg -l ubuntu-mate-desktop
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii ubuntu-mate-de 1.119~trusty amd64 Ubuntu MATE - full desktop


No more issues with missing characters, unstable graphics, etc.
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[Gerry Donlon]

Still the same problem for me on 3.16.0-37-generic after a fresh
install. (But at least now I'm able to boot....)

Easily reproducible by opening up Google maps, all text becomes garbled.
Other programs that require slight 3d rendering also cause this issue.
15.04 works fine. I suppose I'll try the information above and see how
it goes.
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[Gerry Donlon]

On a fresh install I get the following when trying the above solution on
3.16.0-37-generic.

***@user$ sudo apt-get install xserver-xorg xserver-xorg-video-intel
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
unity-control-center : Depends: libcheese-gtk23 (>= 3.4.0) but it is not going to be installed
Depends: libcheese7 (>= 3.0.1) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
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[Dan Gillmor]

Can verify that this isn't fixed...total mess when using external
monitor on my T450s.
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[Dan Gillmor]

However, the suggested temporary fix in #36 has seems to have helped for
now.
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[Dan Gillmor]

Spoke too soon; nothing has changed.
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[Gerry Donlon]

I guess this has been abandoned because it's marked as fixed, even
though it's not?
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[Luke Darnell]

I just updated my 14.04 install to 3.16.0-37-generic.
And although the occurrence of rendering issues seems to have reduced, they are still there.

To reproduce easily, open up google earth, do some zooming around in there, then start doing some alt-tab and moving windows around.
You can see the rendering issues show up pretty quickly.

I'm on an external monitor connected via a dock.

In summary, it's better now than before, but still not fixed completely.
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[Robert Erdin]

I can confirm that there is an improvement with 3.16.0-37-generic on a
X1 Carbon 3rd gen. For example the "shutdown menu" and all the other
dropdowns in the black menu bar are fixed for me. It still appears in
3rd party apps, such as Guake or Libre Office (those two are
particularly annoying as you can guess).
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[Timo Aaltonen]

test packages for both utopic (x-x-v-i) and trusty (x-x-v-i-lts-utopic)

http://koti.kapsi.fi/~tjaalton/bdw

the hint about external monitor was the key, bisected it down to

commit 0532a3313ad9c76a6e1d28e8a1c2ea495583fead
Author: Chris Wilson <***@chris-wilson.co.uk>
Date: Wed Nov 5 20:11:54 2014 +0000

sna/gen8: Clear instancing enabled bit between batches


** Changed in: xserver-xorg-video-intel (Ubuntu Utopic)
Importance: Undecided => Medium
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[phitastic]

The experimental packages in #100 appear to do the trick for me! Tested
under trusty on a lenovo t450s, no external monitor, and have not
observed rendering issues so far. Thanks a lot!
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[phitastic]

Spoke too soon. After waking up from suspend witness a graphics bug(as
before), not sure if this is related to this bug report. dmesg reveals:

[ 1700.310259] [drm] stuck on render ring
[ 1700.311378] [drm] GPU HANG: ecode 0:0x84dffefc, in Xorg [1330], reason: Ring hung, action: reset
[ 1700.311380] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 1700.311381] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 1700.311382] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 1700.311383] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[ 1700.311384] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 1702.309120] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[ 1706.330906] [drm] stuck on render ring
[ 1706.331979] [drm] GPU HANG: ecode 0:0x84dffefc, in Xorg [1330], reason: Ring hung, action: reset
[ 1706.332053] [drm:i915_context_is_banned] *ERROR* gpu hanging too fast, banning!
[ 1708.329919] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
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[Timo Aaltonen]

not related, file a new bug
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[Mathew Hodson]

** Tags added: amd64 trusty
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[Mathew Hodson]

** Project changed: linux => xserver-xorg-video-intel

** Changed in: xserver-xorg-video-intel
Importance: Undecided => Unknown

** Changed in: xserver-xorg-video-intel
Status: New => Unknown

** Changed in: xserver-xorg-video-intel
Remote watch: None => freedesktop.org Bugzilla #90047
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[John doe]

@Timo: your last packages seems to work for me ! At least I have no issue since the beginning o the day and after several reboots.
I will confirm in 1 or 2 days as the issue may still occurs after several hours. Thank you very much to have spent time looking for the issue: it's so much faster with SNA !
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[Timo Aaltonen]

Good to hear

There has been another SRU update in the meantime, so if you use 4.3.1
and upgrade to 4.4 you'll lose this bugfix. I'll upload 4.5 next week.

** Changed in: xserver-xorg-video-intel (Ubuntu Utopic)
Status: Incomplete => In Progress
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[Moritz Heiber]

I think I'm affected by this bug as well. The relevant bits in dmesg:

[55632.090484] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.090918] pci_bus 0000:01: Allocating resources
[55632.091041] pci_bus 0000:02: Allocating resources
[55632.091090] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.093607] pci_bus 0000:01: Allocating resources
[55632.093746] pci_bus 0000:02: Allocating resources
[55632.093798] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.093896] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.094026] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.094136] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
[55632.094535] pci_bus 0000:01: Allocating resources
[55632.094660] pci_bus 0000:02: Allocating resources
[55632.094708] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment

This occurs whenever I wake my laptop from suspend. The fonts are
grossly distorted and unreadable. I've attached one example screenshot
(note: it's a HiDPI setup). I tried using a newer video driver from
ppa:oibaf/graphics-drivers (which fixed a suspend/resume issue), to no
avail.

I'm running on a DELL XPS13 9343 (2015).

$ sudo lshw -c video
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: ***@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:47 memory:f6000000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64)

$ uname -a
Linux paperclip 3.19.0-17-generic #17-Ubuntu SMP Wed May 6 16:46:12 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 15.04
Release: 15.04
Codename: vivid

$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
Installed: 2:2.99.917+git1505041932.5054e2~gd~v
Candidate: 2:2.99.917+git1505041932.5054e2~gd~v
Version table:
*** 2:2.99.917+git1505041932.5054e2~gd~v 0
500 http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu/ vivid/main amd64 Packages
100 /var/lib/dpkg/status
2:2.99.917-1~exp1ubuntu2.1 0
500 http://archive.ubuntu.com/ubuntu/ vivid-updates/main amd64 Packages
2:2.99.917-1~exp1ubuntu2build1 0
500 http://archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages

** Attachment added: "Screen/font corruption in software properties dialog"
Loading Image...
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[Moritz Heiber]

For some reason the screenshot didn't catch on. Trying again.

Also, I noticed that this bug might be connected to me running 'compton'
as my compositor. Is anybody else running a compositor by any chance?

Try killing/starting/restarting it .. it fixed it for me. As suggested
by https://bugs.freedesktop.org/show_bug.cgi?id=90047#c8

** Attachment added: "d10E9y9.png"
Loading Image...
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[brokeasshachi]

All,

As per my above comment, running those commands did fix the issue. Note:
as I mentioned, you need to install the depends also.. example:

~# sudo apt-get install xserver-xorg unity-control-center xserver-xorg-
video-intel xserver-xorg-core xorg-video-abi-15 libcheese-gtk23
libcheese7 libclutter-1.0-0 libclutter-gtk-1.0-0 libcogl15 libclutter-
gst-2.0-0 gstreamer1.0-clutter

(I think that's everything but if it pops up with the message Garry
mentioned above, just install that package as well.)


Moritz,

I'm using compton as well and no issues after doing the above.
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[Gerry Donlon]

The above fix worked for me.....however on reboot my touchpad was not
usable.

I had to run - sudo apt-get install xserver-xorg-input-synaptics - to
restore functionality.

Just FYI in the event someone else runs into this issue.
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[Jan Newmarch]

I've got a Gigabyte Brix GB-BXi7H-5500. This computer only has HDMI and
mini DisplayPort outputs, no VGA. All the Desktop systems I have tried
to install (Ubuntu, Fedora, etc) have all failed because the screen is
totally unreadable, with graphics flashing all over the place and
nothing sensible to be seen. I managed to install Ubuntu 14.10 server
and installed xinit and twm (yes, those ooollllllddd ways of doing X!).
A barely usable system as long as only xterm was used. Trying to run
e.g. firefox was a total mess (photo attached). So it's not a window
manager issue, nor a GUI toolkit issue: this was absolutely minimal X.
Updating linux kernel to 4.0.2 didn't help. Ubuntu 15.04 was no good -
triple mouse pointers against a magenta screen.

Fix #32 worked and I can play 1080p movies such as Big Buck Bunny (a bit
jerky as no i965 loaded). But it only works once I have the server
install done - doesn't help Desktop installs.

I've also logged this as bug 90401 on bugs.freedesktop.org as "HDMI i915
driver broken on Gigabyte Brix GB-BXi7H-5500"

*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: ***@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:63 memory:f6000000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64)
Linux desktop-14-10 3.16.0-37-generic #51-Ubuntu SMP Tue May 5 13:45:59 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux


** Attachment added: "Photo of Firefox on Gigabyte 5500"
Loading Image...
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[David Abergel]

I am also experiencing this kind of issue. For me, the problems manifest as buggy display of video when VLC is in windowed mode. (Fullscreen mode is fine.) Also, when I suspend my laptop, the display is partially corrupted when I resume. See here:
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1452318

The UXA tweak does work for me, but makes my laptop noticeably slower,
and unusable when I run Virtualbox (this is something I have to do quite
a lot, so it a bit of a deal-breaker). I am also using a new Dell XPS 13
and see similar log messages to Moritz Heiber in post #106 above.

Is it safe to try the test packages from post #100 in vivid?

Thanks.
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