Bug#574169: xserver-xorg-video-radeon: dims display after some days of uptime

[Rodrigo Valiña Gutiérrez]

2010/3/18 Michel Dänzer <daenzer at debian.org>
>
> On Tue, 2010-03-16 at 22:03 +0100, Rodrigo Valiña Gutiérrez wrote:
> > Package: xserver-xorg-video-radeon
> > Version: 1:6.12.4-2local1
> > Severity: normal
> >
> > After the laptop spends some days on, and the screensaver activated
> > and locked the screen several times, the display goes dark,
> > with no apparent solution.
> > Restarting server or starting a new session as another user provides
> > a normal display, e.g. a dark display at CTRL-ALT-F7 and a normal
> > display at CTRL-ALT-F8.
> > The screen is dark, but not completely dark, and I am able to unlock
> > the screen and see the desktop, but much darker than normal.
> > The only thing that seems at normal bright is the mouse pointer.
>
> Can you fix the darkness e.g. with xgamma?
>

No, I can't.

I tried in a normal display and the effect of xgamma is not the same
as the effect of the bug.

Yesterday I upgraded linux kernel to 2.6.32-9 and
xserver-xorg-video-radeon to 1:6.12.5-1, and then rebooted.

Today, after a day of uptime, I have again my graphical session locked
and this time completely black. Another session that is open has no
problem at the moment.

Now xgamma does nothing.

My session shows everything black except the mouse pointer. I can see
the mouse pointer changing shape when it is over the (now invisible)
password entry of the screensaver.

I think I unlocked the screen, entering the password, but everything
is black except the mouse pointer, now with more variety of shapes.

Now I think I have to kill the session...