** Description changed: 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 + 3. glxgears -fullscreen (Doesn't work with Unity!) (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
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1055400 Title: [nouveau] Major graphics corruption and flickering after exiting unredirected fullscreen mode To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1055400/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
