Bug#762047: xserver-xorg-video-ati: Black screen with mouse cursor on PowerPC

Michel Dänzer michel at daenzer.net
Tue Sep 23 19:17:25 PDT 2014

On 23.09.2014 00:25, Bill Chatfield wrote:
> If I understand this correctly, then one of the defects in this
> situation is that the old radeonfb, nouveaufb, etc fb device drivers
> are still being compiled into the kernel. This shouldn't happen if
> they're not really supported by the rest of the system. I could file
> a bug in that regard, if that is the right thing to do. There is a
> file that attempts to blacklist all the old <cardname>fb drivers, but
> since they are not loadable modules, this fails.

You'd have to discuss that with the kernel package maintainers.

> I have determined that the reason why gdm and gnome will not run is
> because they require an accelerated driver, which radeonfb does not
> support. So I either have to use radeonfb with xfce or get the
> radeon/drm to work so I can run gnome.

Unfortunately, the upsream Mesa r300 driver currently doesn't work 
correctly on big endian hosts. That would need to be fixed before you 
can run gnome-shell.

So I'm afraid there's no obvious 'right thing to do', it's more a 'pick 
your poison' kind of situation.

Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer

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