I've tried to enable multi-monitor mode on my ThinkPad T60p using the avivo driver, but I'm kind of stuck when it comes to using RandR 1.2. Attempting to enable the VGA port while the LCD is enabled results in this:
If I disable the LCD by using "--output LFP --off" first and then enable VGA, it works, but the image on the CRT is wavy. The CRT also shows the wrong synchronization rates in its on-screen display.
~$ xrandr --output VGA --mode 1600x1200
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 155 (RANDR)
Minor opcode of failed request: 21 ()
Serial number of failed request: 16
Current serial number in output stream: 16
Does anyone know the correct way to use RandR 1.2 to enable multi-monitor mode? Thanks.