On 4/11/09, di dit <didi...@gmail.com> wrote: > Package: xserver-xorg-video-radeon > Version: 1:6.12.2-1 > Severity: normal > > The dualhead setup I've been using for more than 6 months broke up with > the last upgrade. The two identical monitors work fine in clone mode but > the following command results in a black screen on DVI-1 (the monitor > goes to standby mode it seems) while the display on DVI-0 is changed as > expected. > xrandr --output DVI-1 --left-of DVI-0 > At this stage, switching to the console (CTRL+ALT+F1) behave as expected > (both monitors display the same text) but switching back to X11 > (CTRL+ALT+F7) restores the same situation (i.e. DVI-1 is black and DVI-0 > displays the right half of the background image). > > I had no success tweaking xorg.conf to get the dualhead output either so > only the clone mode works.
Both heads are probably using the same crtc, but xrandr isn't smart enough to assign a different one. You can see what crtc is in use by running xrandr --verbose. You can assign a different crtc to the other head like so: xrandr --output DVI-1 --crtc 1 --mode 1280x1024 --left-of DVI-0 Alex -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
