Public bug reported: On Precise (installed from the latest daily live image after beta1), the screen flashes on the areas where a repaint is ongoing. I suspect this is caused by a bug inside X driver or Unity. Looks like the HW 2D/3D operations doesn't get sync'ed well with SW operations.
I'm using an atom based netbook. And never met this on Oneiric. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 ProcVersionSignature: Ubuntu 3.2.0-20.32-generic-pae 3.2.12 Uname: Linux 3.2.0-20-generic-pae i686 .tmp.unity.support.test.0: ApportVersion: 1.95-0ubuntu1 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,snap,imgpng,move,regex,grid,place,session,gnomecompat,mousepoll,animation,expo,resize,wall,unitymtgrabhandles,ezoom,vpswitch,workarounds,fade,scale,unityshell] CompositorRunning: compiz Date: Tue Mar 27 08:18:38 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120325) MachineType: TOSHIBA TOSHIBA NB205 ProcEnviron: TERM=xterm LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic-pae root=UUID=0a76b4d3-7c62-4a59-9d96-79f6231a7b3d ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-intel UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/30/2009 dmi.bios.vendor: TOSHIBA dmi.bios.version: V1.70 dmi.board.name: KAVAA dmi.board.vendor: TOSHIBA dmi.board.version: 1.00 dmi.chassis.asset.tag: * dmi.chassis.type: 10 dmi.chassis.vendor: TOSHIBA dmi.chassis.version: N/A dmi.modalias: dmi:bvnTOSHIBA:bvrV1.70:bd09/30/2009:svnTOSHIBA:pnTOSHIBANB205:pvrPLL25U-009018:rvnTOSHIBA:rnKAVAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A: dmi.product.name: TOSHIBA NB205 dmi.product.version: PLL25U-009018 dmi.sys.vendor: TOSHIBA version.compiz: compiz 1:0.9.7.2-0ubuntu1 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 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 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug compiz-0.9 i386 precise ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/965822 Title: screen flashes in precise (unity) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/965822/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp