Workaround seems reproducible after a reboot, although switch to 1280x720 actually produced a working mode this time. (Rebooted to install updates available as of about 0400 UTC 2013-05-24 which contained some things tangentially related to udev, nothing that seemed likely to have graphics impact?)
-- 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/1181355 Title: R300 (RS480): Intermittent flickering corruption top half of display (VGA, 1080p) Status in “xserver-xorg-video-ati” package in Ubuntu: New Bug description: Any suggestions where to start welcome: Compaq SR1611NX desktop, "Radeon Xpress 200" RS480 (R300) graphics. HP LV2311 LCD connected via VGA because that's the only output on this hardware. The VGA output used to be a little "less than perfectly stable" with older X.org (versions shipped from Ubuntu 9.x to 10.x). Unknown improvements since then have made the overall display much more stable - no more shifty horizontal flicker. In tradeoff, now the top half of the display occasionally flashes distractingly for fractions of a second (single frames?) with "memory cruft" as you might expect to see during boot or graphics init - generally offset large "checkerboard"-esque blocks of black and color with no obvious relation to what's on the display. This would seem to suggest it's an actual GPU/driver issue rather than a glitch on the VGA/monitor end of things. No idea how to trigger or reproduce other than that it will generally occur at least once within each 15 minutes or so of use. Expanding and retracting the dash (very slowly due to the current regression - takes about 5+ seconds to fade in and dismiss) will sometimes set it off, however. Recommendation for screen-recording software to see if it turns up "in software" short of pointing an actual camera at the screen? ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8 Uname: Linux 3.8.0-21-generic x86_64 .tmp.unity.support.test.0: .tmp.unity.support.test.1: ApportVersion: 2.9.2-0ubuntu8 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 CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied Date: Fri May 17 13:56:33 2013 DistUpgraded: Fresh install DistroCodename: raring DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices [AMD] nee ATI RS480 [Radeon Xpress 200 Series] [1002:5954] (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:2a26] MachineType: ASUSTeK Computer INC. RS482-SB400 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-21-generic root=/dev/mapper/Gins_HD-root ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-ati UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/25/2007 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 3.15 dmi.board.name: Amberine M dmi.board.vendor: ASUSTek Computer INC. dmi.board.version: 1.03 dmi.chassis.type: 3 dmi.chassis.version: 1111 dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr3.15:bd01/25/2007:svnASUSTeKComputerINC.:pnRS482-SB400:pvr:rvnASUSTekComputerINC.:rnAmberineM:rvr1.03:cvn:ct3:cvr1111: dmi.product.name: RS482-SB400 dmi.sys.vendor: ASUSTeK Computer INC. version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.43-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 xserver.bootTime: Fri May 17 13:36:36 2013 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input PIXART USB 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: 2:1.13.3-0ubuntu6 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1181355/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
