New answers tagged dual-monitor
I was experiencing the same issue as the OP. I did a git clone https://github.com/zoltanp/xrandr-invert-colors.git Then I installed the one dependency noted in the README, built and installed it, and it works great. Problem solved. I took a look at the source code. The bulk of the work is done with a call into the xcb library to set the gamma ramp. The ...
You might try the following command for your script: xrandr --output MONITORNAME --rotate right To find out your monitor name, examine the output of: xrandr | grep connected Monitor names look like LVDS (usually the internal screen), VGA-0, HDMI-0, etc. If you aren't sure which monitor is which, try one; --rotate normal will put it back the way it was ...
If you are getting the mirrored monitors and you are using Intel: You need version 2:2.20.14-1 of xserver-xorg-video-intel available here: http://snapshot.debian.org/package/xserver-xorg-video-intel/2%3A2.20.14-1/ Thanks to http://forums.debian.net/viewtopic.php?f=6&t=106650 for the answer. Reboot, and then xrandr will detect both screens.
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