Red Hat Bugzilla – Bug 343691
MGA G400 console corruption bug in Xen Dom0 instance.
Last modified: 2008-06-16 22:42:14 EDT
Description of problem:
kernel - 2.6.20-2936.fc7xen
xen package -
After recent reboot, started X server on Dom 0 (I usually run at runlevel 3),
then ran switchdesk to change sessions. Logged out, and restarted X server.
Screen quit responding and could not change virtual consoles. I could log in
remotely only. Dmesg dump is attached.
Not for sure how reproducible. This system has had times of wierd hangups, but
usually to the point where I can't even get in remotely. This is the first time
I have been able to catch a dmesg dump.
Steps to Reproduce:
1. start X
2. log out of X
3. restart X
Console locks up.
X should start, or I should at least be able to get to my virtual consoles.
dmesg has a kernel related bug listing in it.
Video card is an Natrox G400.
[root@catalina ~]# lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System
Controller (rev 11)
00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge
00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 05)
00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE (rev 04)
00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
00:07.5 Multimedia audio controller: Advanced Micro Devices [AMD] AMD-768 [Opus]
Audio (rev 03)
00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev 05)
01:05.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400/G450 (rev 04)
02:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-768 [Opus] USB (rev 07)
02:07.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 0d)
Created attachment 233281 [details]
dmesg output relevant to mga error.
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