[Pkg-fglrx-devel] Bug#567620: Bug#567620: fglrx-driver: Black screen after X startup

[Michael Gilbert]

On Mon, 15 Feb 2010 02:56:54 +0100 Petr Aubrecht wrote:

> > can you try the solution mentioned in comment #50 here [0]?  maybe take a
> > look at the rest of that bug report also.
> > mike
> > [0] https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/314600
> 
> If I understand it correctly, their problem was in running acpi
> services.
> 
> I played with it (although the configuration is different from Debian)
> and ended in manual start -- no automatic X.
> I normally boot (e.g. including acpi, acpid is running), then manually
> "modprobe fglrx", then "startx".
> 
> Interestingly, it starts, but without back light -- I can see processes
> in "ps aux", but the terminal 7 is black. Text terminals (1-6) are
> working normally.
> 
> I tried also the normal boot -- flgrx in /etc/modules and gdm started
> from /etc/init.d/S99gdm. It works well -- blindly. If I enter my
> credentials, it starts my session, but the screen remains black.
> 
> It seems, that the main problem is the back light.

it sounds like you may have an invalid screen resolution or display
depth. try manually setting only 640x480 in xorg.conf, and see if that
works.

mike