[Pkg-fglrx-devel] Bug#765109: fglrx-driver: Black screen after xorg startup

Vincent Alquier vincent.alquier at gmail.com
Thu Jan 1 15:23:43 UTC 2015

Hello all, and also, Happy New Year !

I believe I have the same issue and I also have hybrid graphics. On boot,
when using fglrx display drivers, gdm shows a black screen (when I should
have the login screen). I have no error in /var/log/Xorg.0.log (except a
segmentation fault when I stop gdm).

As I can run graphical hardware accelerated applications using a dedicated
Xorg instance, I think the problem is gdm related. In fact I think your bug
(and mine) is a duplicate of #745901

Mathieu, can you run the following tests ?

Using fglrx driver, gdm not running, run this command from a random tty as
a normal user (= not root) :

/usr/bin/xinit /usr/bin/chromium

Instead of chromium, you can try other graphical application. I was
succesfull with chromium, steam (and even running games) and kodi (=xbmc).
This test should work correctly.

Then try running the same test with a gnome application which depends on
clutter (like totem).

/usr/bin/xinit /usr/bin/totem

If it gives you the following error, then your bug, is a duplicate of
#745901 <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=745901>.

(gnome-shell:3461): GLib-CRITICAL **: g_strsplit: assertion 'string !=
NULL' failed
(gnome-shell:3461): Clutter-CRITICAL **: Unable to initialize Clutter:
The OpenGL version could not be determined
Erreur du gestionnaire de fenêtres : Unable to initialize Clutter.

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