Thanks for your reply!
Tried with the mainline kernel you linked, however the problem persists...
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Description changed:
On a Sony Vaio E-series with a Radeon HD7650M graphics card the screen starts
flickering black at login screen (I'm using Ubuntu 12.10 with the last updates).
It's only a video-issue: apart from this Ubuntu is properly running.
I discovered a dirty workaround for the problem: when screen starts
flickering, if I close the laptop lid and wait about 10s for the system
to enter sleep/standby mode, after I open it again and resume the pc
from sleep/standby the problem disappears until next system boot (even
if i launch 3d-stuff like "extremetuxracer" there's no problem until
next boot).
Other people are writing about (apparently) the same problem on AskUbuntu:
http://snurl.com/26daxey
The problem exists only with kernel versions >=3.6.10
- (and still persists in mainline 3.8.2 kernel).
-
-
+ (and still persists in mainline kernel).
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-22.34-generic 3.5.7.2
Uname: Linux 3.5.0-22-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Feb 12 12:54:23 2013
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Advanced Micro Devices [AMD] nee ATI Thames [Radeon 7500M/7600M Series]
[1002:6841] (prog-if 00 [VGA controller])
Subsystem: Sony Corporation Device [104d:90ab]
InstallationDate: Installed on 2013-01-18 (24 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Sony Corporation SVE1512Y1ESI
MarkForUpload: True
ProcEnviron:
LANGUAGE=it:en
TERM=unknown
PATH=(custom, no user)
LANG=it_IT.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-22-generic
root=UUID=d2b13271-2540-4740-b740-85b725579524 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/30/2012
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0150D5
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.:bvrR0150D5:bd08/30/2012:svnSonyCorporation:pnSVE1512Y1ESI:pvrC10FN8RZ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVE1512Y1ESI
dmi.product.version: C10FN8RZ
dmi.sys.vendor: Sony Corporation
version.compiz: compiz 1:0.9.8.6-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.99.99~git20120913.8637f772-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.2-0ubuntu3
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https://bugs.launchpad.net/bugs/1123024
Title:
Screen flickering at login screen
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