Bug#575585: xserver-xorg-video-radeon: [KMS] Crashes when switching VTs

[Michel Dänzer]

On Sun, 2010-04-04 at 08:31 +0200, Josselin Mouette wrote: 
> Le vendredi 02 avril 2010 à 11:44 +0200, Michel Dänzer a écrit : 
> > > After a few more tries, I’m a bit disappointed. The crash has gone,
> > > sure, but after a bit of juggling with several X servers, new X servers
> > > still refuse to start with the same error as before.
> > 
> > Please provide the log files from both servers.
> 
> Here you go.
> 
> Further notes: the first X server will display a black screen as soon as
> you try to run the second. The cursor is still visible, can be moved and
> clicked… everything seems to behave normally except the display is
> black.

Can the first X server be recovered with something like xgamma -gamma
1.0? There's a known bug where the hardware CLUT doesn't get properly
restored after a VT switch.


> (EE) RADEON(0): [drm] failed to set drm interface version.
> (EE) RADEON(0): Kernel modesetting setup failed
> (II) UnloadModule: "radeon"
> (EE) Screen(s) found, but none have a usable configuration.

Hmm, not sure why that would fail… Can you find out what value
drmSetInterfaceVersion() returns? Is there anything interesting in
dmesg?

BTW, did you capture Xorg.0.log after reproducing the problem? It
doesn't seem to show any trace of a VT switch.


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer