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Bug#581223: xserver-xorg: VTs are black (LCD shutdown) after X session starts and corrupted after logout



On Tue, May 11, 2010 at 18:27:16 -0400, John M Flinchbaugh wrote:

> On Tue, May 11, 2010 at 09:31:05PM +0200, Julien Cristau wrote:
> > On Tue, May 11, 2010 at 14:32:59 -0400, John Flinchbaugh wrote:
> > > GDM starts, I can login once, but if I try to switch VTs, It blacks
> > > the screen competely and doesn't come back, even upon trying to
> > > switch back to VT 7.
> > > 
> > > Logging out of the session or trying to start a new X session
> > > corrupts the display.
> > > 
> > > This broke recently -- in th past week or so.
> > > 
> > Do you get this when using KMS?
> 
> With KMS (for Radeon) enabled by default, I can logout and get a
> working login screen (GDM), and I can start a new session fine, but
> trying to switch to VT 1 no longer switches video modes and just leaves
> the old X screen visible, but unresponsive until I switch back (at
> which point, X is still working).
> 
> Enabling KMS is a *little* better as I can still function graphically.
> Why can't it get back to a console mode?

Did you configure your kernel with CONFIG_FRAMEBUFFER_CONSOLE=y?

Cheers,
Julien

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