Bug 32441 - matroxfb causes corruption in virtual consoles
Summary: matroxfb causes corruption in virtual consoles
Status: RESOLVED INVALID
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/mga (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: Tilman Sauerbeck
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-12-16 06:25 UTC by Manuel Hachtkemper
Modified: 2018-06-12 19:10 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
System information (56.79 KB, text/plain)
2010-12-16 06:25 UTC, Manuel Hachtkemper
no flags Details

Description Manuel Hachtkemper 2010-12-16 06:25:51 UTC
Created attachment 41172 [details]
System information

As requested in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=605716 I'm forwarding a bug report on xserver-xorg-video-mga:

Original Message:
[...]
Package: xserver-xorg-video-mga
Version: 1:1.4.11.dfsg-4
[...]

Hello,

we are using matroxfb and xserver-xorg-video-mga. After booting (with grub2 and video=matroxfb in the grub commandline) and switching automatically to tty7 (kdm) everything looks well. But after switching to tty1-6 you can see the text of the login prompt but you can't see what you type in, or you can see the login prompt shifted multiple times (including see/guess what you type in). This bug was also reported on launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/581466

There are several workarounds (perhaps it helps the upstream to find the bug) (sorted: from bad to not so bad):
- only use programs with X in it (i.e. xdm with xterm), not K or G applications
- disable DRI on the xserver
- load the framebuffer after booting (using fbset)
- use video=matroxfb:noaccel on the grub commandline

Best regards,
Manuel Hachtkemper
Comment 1 Adam Jackson 2018-06-12 19:10:35 UTC
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.


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