https://bugs.freedesktop.org/show_bug.cgi?id=43835
--- Comment #16 from Camaleón noelamac@gmail.com 2011-12-16 13:23:03 PST --- (In reply to comment #15)
(In reply to comment #13)
1/ "firmware-linux-nonfree" package is not installed, or 2/ Option "NoAccel" "True" is set at xorg.conf
These are mostly equivalent, as acceleration is not possible without the microcode with KMS.
What might be interesting would be to try GNOME fallback mode with KMS disabled (radeon.modeset=0) with and without firmware-linux-nonfree installed. Please attach dmesg and Xorg.0.log for both cases again. (The r300g driver doesn't work with KMS disabled)
The user reports that he has tried to disable KMS by all these means:
- Appending "nomodeset" to kernel line - Appending "radeon.modeset=0" to the kernel line - Appending "modeset=0" to the kernel line - Blacklisting radeon module to avoid from loading
But all he gets is a system hang with the following message:
*** Could not update ICEautorithy file /var/lib/gdm3/.ICEauthority Closing session ***
And that's all. He's now stuck at there, forced to load his MacOS X partition in order to get the system up and running.
BTW, does the GNOME fallback mode end up using the same window manager (Metacity?) with and without acceleration being enabled?
I don't know... anyhow, now I have to help the user to restore back his Debian system to an operating state.