My display is a cheap ASUS VE248 that supports 1080p. But it's having some problems with 720p. And guess what. Yeah, I want to set it to 720p.
The reasoning behind this that you probably don't want to read: I usually connect a second display to play games and I set it to 720p. But since this display can't be set to 720p, I can't clone both outputs and set the resolution to 720p, I have to disable the ASUS display first or disconnect it. Also, extending the desktop to both displays is not an option because most games act weird with that setup.
The xrandr output.
$ xrandr Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 8192 x 8192 DVI-I-0 disconnected (normal left inverted right x axis y axis) DVI-I-1 disconnected (normal left inverted right x axis y axis) DVI-I-2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm 1920x1080 60.0*+ 1680x1050 60.0 1600x1200 60.0 1440x900 59.9 1280x1024 75.0 60.0 1280x960 60.0 1152x864 75.0 1024x768 75.0 70.1 60.0 800x600 75.0 72.2 60.3 56.2 640x480 75.0 72.8 59.9 DVI-I-3 disconnected (normal left inverted right x axis y axis)
I'm using the NVIDIA 310.44 propietary driver, just in case that helps. Tried some options mentioned on the README file, but I'm lost there.
Using Ubuntu 13.04, but was the same with Ubuntu 12.10.