With kernel 3.13.0-5.20 (Ubuntu 14.04), the command "sudo xrandr --output eDP1 --mode 1680x1050" does nothing.
With kernels drm-intel-nightly/2014-01-23-trusty and drm-intel-nightly/2014-01-29-trusty, I am able to use xrandr without any problem. For example, I have the following script on login which works perfectly :
Alberto Aguirre :
I submitted the ticket https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1274425
With kernel 3.13.0-5.20 (Ubuntu 14.04), the command "sudo xrandr --output eDP1 --mode 1680x1050" does nothing. nightly/ 2014-01- 23-trusty and drm-intel- nightly/ 2014-01- 29-trusty, I am able to use xrandr without any problem. For example, I have the following script on login which works perfectly :
With kernels drm-intel-
xrandr --newmode "1600x900" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync
xrandr --addmode eDP1 1600x900
xrandr --output HDMI2 --mode 1920x1080 --pos 1600x0 --rotate normal --output HDMI1 --off --output DP1 --off --output eDP1 --mode 1600x900 --pos 0x180 --rotate normal --output VIRTUAL1 --off
I'm also able to use suspend/resume which was not working with kernel 3.13.0-5.20