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

[Stefano <pietranera@gmail.com>]

On Mon, Jun 14, 2010 at 1:26 AM, Brice Goglin <Brice.Goglin@ens-lyon.org> wrote:
> Le 14/06/2010 03:31, Stefano a écrit :
>> 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 :)


Hi,

yeah, the post is old, but my laptop is even older, and so its graphic card!

Anyway, I am going to try if loading the module later will work for me.

Also, I just realized that in my bug report I mistakenly wrote that I
commented the last line of my radeon-kms.conf (which would be "
options radeon dynclks=1").

That's not correct, I commented "options radeon agpmode=-1". That can
be deducted from the title of the bug report, but I wanted to point it
out.

>> 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.

When I leave the driver free to decide the AGP value, it picks up 4,
which is the "right" one. I also tried with 2 with no success.

I am going to try 1 and 8, and then put 4 explicitly in
radeon-kms.conf when I have some free time.

I'll let you know what happens.

Thanks.

> Brice

--  Stefano