Based on the description of the symptoms, it sort of sounds like this
might be caused by an incorrect AGPMode setting, which is relevant when
DRI is enabled. You should test if changing this makes the issue go
away. In your /etc/X11/xorg.conf set AGPMode to various values like
this:
Section "Device"
...
Option "AGPMode" "2"
EndSection
Possible values include 1, 2, 4, 8. You can see what it's currently set
to by looking in /var/log/Xorg.0.log. It's worthwhile to test all four
values even once you find one that works. If this takes care of it for
you, we may be able to establish a quirk to set it for your hardware
combo, if you can provide the following data:
* AGPMode value(s) that work
* Make/Model of laptop or motherboard
* Is the system all factory hardware, or have any parts been replaced?
* Is there an AGP Mode in the system BIOS?
- If so, is it set to the factory default?
For more details on this, please see the "ATI AGP Mode Quirk" section at
https://wiki.ubuntu.com/X/Quirks
Note, you might need to also disable KMS in order to make these quirks
apply (I'm not certain though). For more information on how to turn KMS
on or off please see http://wiki.ubuntu.com/X/KernelModeSetting .
** Description changed:
Binary package hint: xorg
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.
ProblemType: Bug
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.
+ [ 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
- SHELL=/bin/bash
+ LANG=fr_FR.utf8
+ SHELL=/bin/bash
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:
- distro: Ubuntu
- codename: lucid
- architecture: i686
- kernel: 2.6.32-19-generic
+ distro: Ubuntu
+ 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]
** Summary changed:
- Corrupted screen
+ [RV280] Corrupted screen
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Triaged => Incomplete
--
[RV280] Corrupted screen
https://bugs.launchpad.net/bugs/557433
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