Bug#585815: xserver-xorg-video-radeon: radeon/KMS only works in PCI mode (AGP disabled) for RV350 [Mobility Radeon 9600 M10] card

[Brice Goglin]

Le 14/06/2010 03:31, Stefano a écrit :
> Package: xserver-xorg-video-radeon
> Version: 1:6.13.0-2
> Severity: important
> Tags: squeeze sid
>
> *** Please type your report below this line ***
>
> Hello,
>
> it is known that when using the radeon module with modesetting there may
> be some problems: http://bgoglin.livejournal.com/19346.html
>   

This post is very old, not sure it still matters old, but it's good you
found a workaround :)~$ cat /etc/modprobe.d/radeon-kms.conf

> options radeon modeset=1
> options radeon agpmode=-1
> options radeon dynclks=1
>
> After upgrading to kernel 2.6.32-5-686 I have tried to enable the AGP mode by 
> commenting the last line of the file. I noticed a huge improvement of the 
> performances of my laptop, however, it becomes really unstable and 
> eventually it locks up with a black screen and I have to power it off.
>   

Did you try other values for agpmode ? You can try 1, 2, 4 and 8. If one
helps, upstream may add a quirk for your machine.

Brice