Forwarding this bug from Ubuntu reporter Emmanuel Pacaud: http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/557433 [Problem] Screen pixellated line corruption which increases over time. [Original Description] After a while, my screen begins to be corrupted, showing bright pixels. These pixels seems to be "attached" to the graphical object on which they appear. For example, the bright pixels on the windows title bar move when I move the window. They are mostly randomly placed, and their place change each time a redraw of the graphical object occur. For example, the bright pixels on background of the time applet change every second. An attempt was made to test different AGPMode settings, however the settings didn't take while KMS was enabled, and when KMS is disabled there is a different bug (black background and maximized windows are black). DistroRelease: Ubuntu 10.04 Package: xorg 1:7.5+3ubuntu1 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1 Uname: Linux 2.6.32-19-generic i686 Architecture: i386 CurrentDmesg: [ 21.156013] eth0: no IPv6 routers present [ 55.488137] kjournald starting. Commit interval 5 seconds [ 55.488168] EXT3-fs warning: maximal mount count reached, running e2fsck is recommended [ 55.488872] EXT3 FS on sdb2, internal journal [ 55.488881] EXT3-fs: mounted filesystem with ordered data mode. Date: Wed Apr 7 19:00:40 2010 DkmsStatus: Error: [Errno 2] Aucun fichier ou dossier de ce type InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100119) MachineType: System Manufacturer System Name ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=cad49b82-547e-477f-a13d-c5f825c88e3c ro quiet splash ProcEnviron: LANG=fr_FR.utf8 SourcePackage: xorg Symptom: display dmi.bios.date: 09/02/2004 dmi.bios.vendor: Award Software, Inc. dmi.bios.version: ASUS A7V8X-X ACPI BIOS Revision 1013 dmi.board.name: A7V8X-X dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: REV 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 7 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAwardSoftware,Inc.:bvrASUSA7V8X-XACPIBIOSRevision1013:bd09/02/2004:svnSystemManufacturer:pnSystemName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnA7V8X-X:rvrREV1.xx:cvnChassisManufacture:ct7:cvrChassisVersion: dmi.product.name: System Name dmi.product.version: System Version dmi.sys.vendor: System Manufacturer glxinfo: Error: [Errno 2] Aucun fichier ou dossier de ce type system: codename: lucid architecture: i686 kernel: 2.6.32-19-generic [lspci] 00:00.0 Host bridge [0600]: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge [1106:3189] Subsystem: ASUSTeK Computer Inc. Device [1043:807f] 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV280 [Radeon 9200] [1002:5961] (rev 01) Subsystem: ASUSTeK Computer Inc. Device [1043:5002]
Created attachment 35216 [details] Capture.png
Created attachment 35217 [details] BootDmesg.txt
Created attachment 35218 [details] XorgLog.txt
For kms, agpmode is a kernel module parameter. try booting with radeon.agpmode=X where X = -1,1,2,4,8 1-8 are the agp modes, -1 uses the onboard gpu gart (PCI, PCIE, etc.)
Is the corruption permanent or transient? If it's transient, this might be watermark related. With these patches: http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commit;h=f47299c55a837af1727bc601e1fc0fa33adaeda5 http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commitdiff;h=f46c01208da1881591e3f55ca77d37f54469f8e4 Does loading radeon with disp_priority=2 avoid the problem? If it's permanent, it may be AGP related.
I don't experience this corruption anymore, with xserver 7.5+5ubuntu1 and linux 2.6.32-21-generic. I guess it has since been fixed.
marking as fixed then.
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