Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-nouveau (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1055400
Title:
[nouveau] Major graphics corruption and flickering after exiting
unredirected fullscreen mode
Status in Compiz:
Invalid
Status in “xserver-xorg-video-nouveau” package in Ubuntu:
Confirmed
Bug description:
Enabling Compiz option: CCSM > Composite > "Unredirect Fullscreen Windows"
seems to work at first.
But after you enter and leave fullscreen mode a few times the screen
flickers uncontrollably, goes corrupt, and the system becomes useless.
Restarting Compiz is not sufficient to fix the problem.
I've only found this problem with the nouveau driver so far.
TEST CASE:
1. Make sure you're using nouveau
2. CCSM > Composite > "Unredirect Fullscreen Windows" = ON
3. glxgears -fullscreen
(Or start a different OpenGL program that uses fullscreen)
4. While it's running tap Alt+Space a few times.
5. Press escape to exit the program
Expected: Screen returned to its original state.
Observed: Screen flickers and gets worse with use. Quickly becomes totally
corrupt.
WORKAROUND:
Install the proprietary Nvidia driver: nvidia-current or
nvidia-current-updates
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
CompizPlugins:
[core,composite,opengl,compiztoolbox,decor,mousepoll,gnomecompat,resize,vpswitch,grid,move,imgpng,regex,animation,wall,place,fade,session,expo,workarounds,scale,ezoom,unityshell]
CompositorRunning: None
Date: Mon Sep 24 17:39:18 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes,
GraphicsCard:
NVIDIA Corporation GT218GL [Quadro FX 380 LP] [10de:0a78] (rev a2) (prog-if
00 [VGA controller])
Subsystem: NVIDIA Corporation Device [10de:0746]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MachineType: Dell Inc. OptiPlex 990
ProcEnviron:
LANGUAGE=en_AU:en
TERM=xterm
PATH=(custom, no user)
LANG=en_AU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic
root=UUID=9f6f99e2-1189-4bf1-bff7-af137071f572 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/10/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0D6H9T
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA07:bd09/10/2011:svnDellInc.:pnOptiPlex990:pvr01:rvnDellInc.:rn0D6H9T:rvrA00:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 990
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.7.8-0ubuntu1.4
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3+8.0.2-0ubuntu3.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3+8.0.2-0ubuntu3.2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20111201+b5534a1-1build2
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