Running Ubuntu 8.10 with the FGLRX driver installed by the restricted driver manager (8.54.3).
I was running a dual display configuration here until my Border Collie puppy decided that she wanted to eat one of the displays, pulled it off the desk and chewed it well and truly up. Fortunately, she pulled the power cord out of the socket as she did so (having previously discovered that she doesn't like the taste of electricity) but the display isn't all that it used to be.
Somewhere along the way xrandr added a mode to handle the dual-display virtual screen area, and the system still starts in that mode, although the remaining display itself comes up in an appropriate resolution.
The help says the command to remove a mode from xrandr is:
xrandr --delmode <output> <name>
or possibly xrandr --rmmode <name>
I can't make these work, mostly because I'm not sure what it wants in the <name> parameter.
Here's the top part of the output of xrandr -q:
I would like to remove the 3840x1200 mode because I can't use it any more. Would appreciate some pointers on the proper systax (or the proper command if I'm using the wrong one).
Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 3840 x 1200
default connected 3840x1200+0+0 0mm x 0mm