Bug#394450: xserver-xorg: new install , Radeon 9200 dual head : default conf hangs ; solution

Michel Dänzer daenzer at debian.org
Fri Oct 27 05:22:30 PDT 2006

On Fri, 2006-10-27 at 10:20 +0200, A Mennucc wrote:
> #  egrep -i 'agpgart|drm' xorg.conf-crash-dmesg2.log
> agpgart: Detected AGP bridge 0
> agpgart: AGP aperture is 64M @ 0xe4000000
> Linux agpgart interface v0.101 (c) Dave Jones
> [drm] Initialized drm 1.0.1 20051102
> [drm] Initialized radeon 1.25.0 20060524 on minor 0
> agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.
> agpgart: Badness. Don't know which AGP mode to set. [bridge_agpstat:1f000a0a vga_agpstat:ff00021b fell back to:- bridge_agpstat:1f000208 vga_agpstat:ff00021b]
> agpgart: Bridge couldn't do AGP x4.
> agpgart: Putting AGP V3 device at 0000:00:00.0 into 0x mode
> agpgart: Putting AGP V3 device at 0000:01:00.0 into 0x mode
> [drm] Setting GART location based on new memory map
> [drm] Loading R200 Microcode
> [drm] writeback test failed
> ^^^^^^^^^^^^^
> agpgart does quite strange things ...

Indeed, so this could be at least partly a kernel agpgart issue.

One thing to note is that some people recently reported similar symptoms
being caused by the AGP aperture being set too small in the BIOS setup,
but I'm not sure that applies for amd64 as well.

Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer

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