[Bug 19406] New: Blank Screen, X freeze on my notebook ( Ati Mobility 9600 with radeon driver), ONLY with X.Org 7.4

[Alex Deucher]

On Mon, Jan 5, 2009 at 10:56 PM, Pedro R <eusou15 at yahoo.com> wrote:
> Hello Simon, I had exactly the same problem, with a radeon 9600 mobility on openSUSE 11.1.
>
> Ended up blaming it on openSUSE and switched distros. Other distros have the same problem, this is related to Xorg 7.3 and 7.4.
>
> Right now i'm running Debian with Xorg 7.3 and it seems fine. The fix is to go to xorg.conf (don't remember where it is in openSUSE) and under the "Device" section, see if the "Driver" is set to "ati". If it is, change it to "radeon" and contact me, because I suspect there is a problem with the hardware detection.
>
> If you are already set to "radeon", then add the following under "Device"
> Option            "DRI"              "False"
> Option            "AGPMode"          "1"
>

This problem and yours are probably due to a bad AGP mode.  Setting
the DRI option to false disables 3D and thus makes the AGPMode option
irrelevant.  Remove the DRI option before testing the AGPMode option.
With the right AGPMode you should be able have 3D enabled.

Alex