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Hot screen resizing

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linux-howto

http://forums.opensuse.org – openSUSE 11.2 x64, KDE_4.3.4 Geforce 9500GT, the latest Nvidia driver is installed I have monitor and TV - both are the same resolution. Now i use twinView. It is ok until i want to play games - the picture is in the middle of screens. Now i must disable TV when i want to play. I want to be able to resize my screens to one of them (3840x1080 --> 1920x1080). I think this can be done with xrandr, but i can't understand how i can use it. dima@host-120-5-75:~> xrandr -q Screen 0: minimum 1920 x 1080, current 3840 x 1080, maximum 3840 x 1080 default connected 3840x1080+0+0 0mm x 0mm 3840x1080 50.0* 51.0 1920x1080 51.0 dima@host-120-5-75:~> xrandr -s 0 dima@host-120-5-75:~> xrandr -s 1 Failed to change the screen configuration! dima@host-120-5-75:~> Any help is appreciated (Distributions)