Public bug reported:
Binary package hint: xserver-xorg-video-radeon
When using KMS, "dmesg" shows that the radeon driver puts my 7500
Mobility in 1X mode instead of 4X mode which the AGP V2 bridge supports.
It used to default to the correct mode with 9.10. The problem originally
appeared on 10.04.
lsb_release -rd
Description: Ubuntu maverick (development branch)
Release: 10.10
apt-cache policy xserver-xorg-video-radeon
xserver-xorg-video-radeon:
Installed: 1:6.13.1-1ubuntu2
Candidate: 1:6.13.1-1ubuntu2
Version table:
*** 1:6.13.1-1ubuntu2 0
500 http://us.archive.ubuntu.com/ubuntu/ maverick/main i386 Packages
100 /var/lib/dpkg/status
The driver should be setting the detected AGP v2 bridge to 4x mode
instead of the "fallback" 1x mode.
Please let me know if any additional information is required to help
resolve this problem, I'd love to see a release of Ubuntu where the
first thing I do after installing is NOT have to fight with my Radeon
7500 Mobility on my T42 Thinkpad!
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
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radeon putting AGP V2 device into 1x mode
https://bugs.launchpad.net/bugs/619047
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