Public bug reported: Unfortunately I have no reliable way of reproducing this issue, but it seems that after some time of using Ubuntu (especially when browsing websites with firefox) the graphics are getting corrupted.
It starts with some small artifacts (single lines and pixels) and all of the sudden the entire screen is full of artifacts and the OS is basically unusable at this state. Coincidentelly, I've had this problem with Arch Linux before. I was able to fix it, by setting the power profile of the GPU to "mid" or "high" as described here: https://wiki.archlinux.org/index.php/ATI#Profile-based_frequency_switching So to me it seems like this might be related to power management. Doing some more testing with Ubuntu, I was able to fix the corruption when switching the profile to mid and then logging out and in again. Leaving the profile at low did not fix the issue after re-login. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity CurrentDmesg: [ 16.420258] init: plymouth-upstart-bridge main process ended, respawning [ 42.046534] audit_printk_skb: 123 callbacks suppressed [ 42.046536] type=1400 audit(1398637834.876:68): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2158 comm="apparmor_parser" [ 42.046541] type=1400 audit(1398637834.876:69): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2158 comm="apparmor_parser" [ 42.046831] type=1400 audit(1398637834.876:70): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2158 comm="apparmor_parser" Date: Mon Apr 28 00:32:39 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Turks XT [Radeon HD 6670/7670] [1002:6758] (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited / Sapphire Technology Device [174b:e198] InstallationDate: Installed on 2014-04-27 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=71941913-ad5f-4bba-8378-81cbf78bd8d2 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-ati UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/24/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: FA dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z77-D3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrFA:bd07/24/2013:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ77-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Mon Apr 28 00:30:08 2014 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input Logitech USB-PS/2 Optical Mouse MOUSE, id 8 input AT Translated Set 2 keyboard KEYBOARD, id 9 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.15.1-0ubuntu2 xserver.video_driver: radeon ** Affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu ** Attachment added: "Screenshot showing corrupted graphics" https://bugs.launchpad.net/bugs/1313459/+attachment/4098815/+files/Screenshot%20from%202014-04-27%2022%3A38%3A17.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313459 Title: Screen corruption with Radeon 6670 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1313459/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
