Radeon/PowerPC: No video output after update 6.12.1 -> 6.12.99; 6.12.192

[Michel Dänzer]

On Mon, 2010-04-05 at 19:57 +0200, Albrecht Dreß wrote:
> 
> I run Linux (Ubuntu) on an old Power Mac with a Radeon card (see
> details below).  After the update from Ubuntu 9.04 (radeon driver
> 6.12.1) to 9.10 (radeon driver 6.12.99), X did not come up any more.
> Instead of the X screen, the TFT shows single pixels, sometimes a blue
> vertical line, and a greenish shade in some regions of the display.
> Switching back to the text console is impossible.  The system is still
> alive, though; I could reach it via ssh from an other box and reboot. 

At that point, was the X server process still alive? Was it hogging the
CPU?

Please also provide the output of

dmesg|grep -e agp -e drm -e radeon

when logging in via ssh when the problem occurs.


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