Flickering Screen upon wake from Suspend

[lafleche.jonathan]

On my Sony Vaio YB laptop running the dev branch for Ubuntu Oneiric, I get a backlight flicker after the computer wakes from Suspend. The flickering seems to subside after 10-15 minutes, but even rebooting does not fix the flickering. (in fact, once triggered from ubuntu, the flickering will happen in the BIOS menu) I know this is not a hardware problem, because the same problem does not occur in Windows. I imagine it's a driver problem, though the flickering happens whether I use the radeon or fglrx driver.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
.tmp.unity.support.test.0:

ApportVersion: 1.23-0ubuntu2
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
Date: Wed Sep 28 17:38:47 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 ATI Technologies Inc AMD Radeon HD 6310 GraphicsATI [1002:9802] (prog-if 00 [VGA controller])
   Subsystem: Sony Corporation Device [104d:9082]
MachineType: Sony Corporation VPCYB13KX
ProcEnviron:
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=6ec90928-58f9-47e7-ba47-b05cf3abae4c ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/22/2010
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0160Z7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnInsydeCorp.:bvrR0160Z7:bd12/22/2010:svnSonyCorporation:pnVPCYB13KX:pvrC900BDST:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCYB13KX
dmi.product.version: C900BDST
dmi.sys.vendor: Sony Corporation
version.compiz: compiz 1:0.9.6-0ubuntu1
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[Launchpad Janitor (janitor)]

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

[Tom Pringle (thomas-b-pringle)]

I believe I have the same config and can report that I reproduce all of the same symptoms mentioned above.

[Bryce Harrington (bryce)]

Hey arrow-69,

Hi, thanks for reporting this issue during the development period of
Ubuntu.

I notice there's not been further comments to the bug report since the
release came out, would you mind updating us on the status of it in the
release?

Are you still able to reproduce the issue? If not, do you think the bug
report can be closed, or do you think we should continue tracking it?

[lafleche.jonathan (arrow-69)]

Hi Bryce,

 I still have the same issue with the latest updates in Oneiric. I can reproduce it although it's not entirely clear cut. If I press suspend, and wake my computer up within a few minutes, I don't have any flickering. However if it stays suspended for a longer period of time, then the flickering occurs. If that's relevant for testing/debugging, I can probably figure out what the threshold is for when the flickering occurs. ( are there multiple stages to power suspension? maybe the deeper sleep triggers the flickering?)

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-ati (Ubuntu) because there has been no activity for 60 days.]

[Felipe Zacani de Mello (felipezacani)]

I can still reproduce this behavior. Just installed 64bit oneiric in my new sony vaio yb35 (same as the original user, except a little bit faster, comes with the AMD e-450 instead of the e-350).

A few minutes after installing, I left the computer installing updates and, when I came back, the backlight seems to be flickering heavily. This seems to get a little better over time and after a shutdown, but I definitely don't think it should be ignored.

[penalvch (penalvch)]

lafleche.jonathan, thank you for reporting this bug to Ubuntu. Oneiric reached EOL on May 9, 2013.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

To see if this is already resolved, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?

If not, please mark the Status Invalid.

If so, please mark the Status New.

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-ati (Ubuntu) because there has been no activity for 60 days.]