This issue reproduced on 201107-8258 Lenovo E525 Driver version xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629 xserver-xorg-video-radeon 1:6.14.99~git20111219.aacbd629
It could be reproduced when you try to set the resolution to 800*600 ** Tags added: 201107-8258 taipei-lab -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/992233 Title: [Lenovo E525] Switching video modes causes severe corruption / can't display larger modes Status in “xserver-xorg-video-ati” package in Ubuntu: Fix Released Bug description: To reproduce, install 12.04 LTS onto a Lenovo E525 with the ATI video card. Run the script /usr/share/checkbox/scripts/xrandr_cycle After the first few larger modes, video will become horribly corrupted and may not recover once the script tries to restore the original mode. Essentially, the script determines what modes are availabe then switches to those modes to verify they work. Once the resolution gets small enough (less pixels), I noted severe screen corruption. See the attached video. the fun really stars around the 30 second mark. On that video, the screen did not recover afterwards. I had to powercycle the machine to get the screen back to a usable state. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-radeon 1:6.14.99~git20111219.aacbd629-0ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz Date: Mon Apr 30 17:03:18 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: Advanced Micro Devices [AMD] nee ATI Device [1002:9648] (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:21ea] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: LENOVO 120024U ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=7be665df-e57e-4705-b25f-dc731dc08c68 ro quiet splash initcall_debug vt.handoff=7 SourcePackage: xserver-xorg-video-ati UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/14/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8IET33WW(1.06) dmi.board.asset.tag: Not Available dmi.board.name: 120024U dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8IET33WW(1.06):bd07/14/2011:svnLENOVO:pn120024U:pvrThinkPadE525:rvnLENOVO:rn120024U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 120024U dmi.product.version: ThinkPad E525 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.7.6-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/992233/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
