regression using SNA acceleration for Intel X driver

[Thomas Chatain]

Hello,

After updating to Ubuntu 13.04, I got a severe graphical bug. Unfortunately screenshots do not show the problem, but I can describe it as follows: large parts of the screen appear duplicated and distorted at another place of the screen.

When I turn back to UXA acceleration (which was the default with the previous version of Ubuntu), the problem disappears.

Hope this can help!

Best regards,
Thomas Chatain

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
Uname: Linux 3.8.0-23-generic i686
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: i386
Date: Mon Jun 10 16:25:46 2013
InstallationDate: Installed on 2011-11-28 (559 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MarkForUpload: True
SourcePackage: xorg
UpgradeStatus: Upgraded to raring on 2013-06-07 (3 days ago)
---
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: i386
CurrentDmesg: [ 11.168994] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
DistUpgraded: 2013-06-07 10:38:07,501 DEBUG enabling apt cron job
DistroCodename: raring
DistroRelease: Ubuntu 13.04
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0277]
   Subsystem: Dell Device [1028:0277]
InstallationDate: Installed on 2011-11-28 (560 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
LightdmGreeterLog:
 ** (lightdm-gtk-greeter:2123): WARNING **: Failed to open sessions directory: Error opening directory '/usr/share/lightdm/remote-sessions': No such file or directory

 ** (lightdm-gtk-greeter:2123): WARNING **: Failed to load user image: Failed to open file '/home/chatain/.face': No such file or directory
LightdmGreeterLogOld:
 ** (lightdm-gtk-greeter:1450): WARNING **: Failed to open sessions directory: Error opening directory '/usr/share/lightdm/remote-sessions': No such file or directory

 ** (lightdm-gtk-greeter:1450): WARNING **: Failed to load user image: Failed to open file '/home/chatain/.face': No such file or directory
MachineType: Dell Inc. Latitude E4200
MarkForUpload: True
Package: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
PackageArchitecture: i386
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-23-generic root=UUID=401ca640-b4e5-42b0-a3f1-d8f489e35fe1 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
Tags: raring ubuntu
Uname: Linux 3.8.0-23-generic i686
UpgradeStatus: Upgraded to raring on 2013-06-07 (3 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 08/17/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A18
dmi.board.name: 0XRV1H
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA18:bd08/17/2010:svnDellInc.:pnLatitudeE4200:pvr:rvnDellInc.:rn0XRV1H:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E4200
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.43-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1
xserver.bootTime: Tue Jun 11 09:31:52 2013
xserver.configfile: default
xserver.errors:
 Failed to load module "modesetting" (module does not exist, 0)
 Failed to load module "modesetting" (module does not exist, 0)
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.3-0ubuntu6
xserver.video_driver: intel

[Chris Wilson (ickle)]

Run apt-get install xdiagnose && apport-collect 1189497 and attach a photograph of the corruption please.

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

apport information

[Thomas Chatain (thomas-amelie)]

I ran the command. Hope you can see the result on launchpad.
Here is a nice photograph of the screen.

On 2013-06-10 17:21, Chris Wilson wrote:
> Run apt-get install xdiagnose && apport-collect 1189497 and attach a
> photograph of the corruption please.
>
> ** Changed in: xserver-xorg-video-intel (Ubuntu)
> Status: New => Incomplete
>

[penalvch (penalvch)]

Thomas Chatain, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xserver-xorg-video-intel REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Thomas Chatain (thomas-amelie)]

Hello,

I tested xubuntu 14.04 an was not able to reproduce the bug :)

Best regards,
Thomas Chatain

On 2014-01-07 19:46, Christopher M. Penalver wrote:
> Thomas Chatain, this bug was reported a while ago and there hasn't been
> any activity in it recently. We were wondering if this is still an
> issue? If so, could you please test for this with the latest development
> release of Ubuntu? ISO images are available from
> http://cdimage.ubuntu.com/daily-live/current/ .
>
> If it remains an issue, could you please run the following command in
> the development release from a Terminal
> (Applications->Accessories->Terminal), as it will automatically gather
> and attach updated debug information to this report:
>
> apport-collect -p xserver-xorg-video-intel REPLACE-WITH-BUG-NUMBER
>
> Please note, given that the information from the prior release is
> already available, doing this on a release prior to the development one
> would not be helpful.
>
> Thank you for your understanding.
>
> Helpful bug reporting tips:
> https://wiki.ubuntu.com/ReportingBugs
>
> ** This bug is no longer a duplicate of bug 1098334
> [gen4 sna] Font corruption
>
> ** Changed in: xserver-xorg-video-intel (Ubuntu)
> Importance: Undecided => Low
>

[penalvch (penalvch)]

Thomas Chatain, thank you for performing the requested test. Would you need a backport to a release prior to Trusty, or may this be closed as Status Invalid?

[Thomas Chatain (thomas-amelie)]

Hello,

If there is an easy way to do a backport, this would be great: SNA looks
much nicer (when it works!) than UXA on my computer. This would also
allow me to test the new SNA more intensively.

:)
Thomas

On 2014-01-08 19:58, Christopher M. Penalver wrote:
> Thomas Chatain, thank you for performing the requested test. Would you
> need a backport to a release prior to Trusty, or may this be closed as
> Status Invalid?
>

[penalvch (penalvch)]

Thomas Chatain, thank you for taking the time to report this bug and helping to make Ubuntu better. However, I am closing it because as per your comment https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1189497/comments/14 the bug has been fixed in the latest development version of Ubuntu - Trusty Tahr.

This is a significant bug in Ubuntu. If you need a fix for the bug in previous versions of Ubuntu, please perform as much as possible of the SRU Procedure [1] to bring the need to a developer's attention.

[1]: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure