Ubuntu :: Can't Make Multiple Displays (two Screens) Work

Feb 6, 2010

I used to use nvidia and Twinview to drive an LCD and CRT monitor as one big area. I've changed over to using the nv driver, and I gather that xinerama is deprecated now in favour of xrandr. But I can't get xrandr to even report anything about my two displays, and can't get any picture on the CRT. This is despite both being fully detected by X (according to the log file).

I've just changed over from using the nvidia driver to the nv driver. I did this because I discovered that the frequent system crashes while watching video was caused by the nvidia driver, partly because my card is a GeForce FX 5200, not supported by the current nvidia driver which contains bug fixes for the problem. So I've used Synaptic to remove all the nvidia drivers and add-ons, and installed nv and the libgl1-mesa-dri and libgl1-mesa-glx drivers.

I moved my old xorg.conf file aside and on a second X display ran X :1 -configure to generate a clean new xorg.conf and started from there. I'm doing all these experiments by modifying xorg.conf, and then on a second console running up X on display :1 to try it out. Another odd thing: xrandr doesn't report any "outputs" (since I'm using the nv driver, I'd expect to see DVI0 and VGA1), instead it just reports this:

Code:

# xrandr
Screen 0: minimum 640 x 200, current 2560 x 1024, maximum 2560 x 1024
default connected 2560x1024+0+0 0mm x 0mm

[code]....

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[code]....

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[Code]...

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