Font corruption Intel Broadwell graphics

[rho770]

After resume from suspend it often happens that fonts are corrupted.

WORKAROUND: Set AccelMethod to "uxa".

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-41.57-generic 3.16.7-ckt11
Uname: Linux 3.16.0-41-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.7-0ubuntu8.5
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,regex,snap,vpswitch,imgpng,compiztoolbox,grid,staticswitcher,mousepoll,move,resize,place,gnomecompat,dbus,animation,expo,ring,workarounds,fade,session,kdecompat,scale]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Wed Jun 24 10:16:47 2015
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
DkmsStatus:
 i915-3.19.2-3.16, 1, 3.16.0-41-generic, x86_64: installed
 virtualbox, 4.3.18, 3.16.0-41-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:5036]
InstallationDate: Installed on 2015-06-18 (6 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 20BX000XGE
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-41-generic root=UUID=ef80ed28-52d5-4bee-b65c-a543a2b68df4 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/23/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET41WW (1.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BX000XGE
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrJBET41WW(1.06):bd12/23/2014:svnLENOVO:pn20BX000XGE:pvrThinkPadT450s:rvnLENOVO:rn20BX000XGE:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BX000XGE
dmi.product.version: ThinkPad T450s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.59-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.1-0intel1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.1-0intel1
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Tue Jun 23 16:15:38 2015
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 1133
 vendor LGD
xserver.version: 2:1.16.0-1ubuntu1.3
---
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.04
InstallationDate: Installed on 2015-07-18 (18 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
Package: linux (not installed)
Tags: vivid
Uname: Linux 4.0.9-040009-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin mysql plugdev sambashare sudo www-data
_MarkForUpload: True

[Launchpad Janitor (janitor)]

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

[rho770 (dirk-pleiter)]

Thanks for the suggestions!

After BIOS update problem persists. Example is attached (note not correctly displayed character "5").

Output of dmidecode -s bios-version && sudo dmidecode -s bios-release-date:
JBET50WW (1.15 )
06/10/2015

I am aware that this problem is reported for Ubuntu 14.10 which is getting close to end-of-life. The problem was before observed also for 15.04. I performed a downgrade in order to use the Intel graphics stack (which again did not seem to change the problem).

[Launchpad Janitor (janitor)]

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

[penalvch (penalvch)]

rho770, could you please test the latest upstream kernel available from the very top line at the top of the page (the release names are irrelevant for testing, and please do not test the daily folder) following https://wiki.ubuntu.com/Kernel/MainlineBuilds ? It will allow additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, Y, and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[rho770 (dirk-pleiter)]

Thanks, Christopher, again for swift reply.

I have tested the following kernels:
4.1.0-040100rc2-generic
4.0.7-040007-generic
3.19.8-031908-generic

While I managed to boot the system (Lenovo t450s), for none of these cases WLAN worked. Furthermore, problems with building the kernels had been observed, which seem to be related to the use of Intel Graphics for Linux.

During 5 cycles of suspend/resume the problem could not be observed. However, also for the current default kernel (3.16.0-41-generic) I observed the problem sometimes to occur less frequently.

Given the fact that the current install is not fully inline with default 14.10 (due to use of Intel Graphics for Linux) and the fact that problem is not sufficiently frequently reproducible, I suggest that I will collect further observations and try to install 15.04 asap to eliminate deviations from standard installation.

For the time being I keep this in state Incomplete.

[rho770 (dirk-pleiter)]

apport information

[rho770 (dirk-pleiter)]

apport information

[rho770 (dirk-pleiter)]

After clean install of Ubuntu 15.04 it could be confirmed that problem continues to be present.

After switching to upstream kernel 4.0.9-040009-generic #201507212131 problem has not been seen for a few weeks.

[Brad Figg (brad-figg)]

This change was made by a bot.