Execute this script in .xprofile to fix crazy resolution on ubuntu 14 with 2 screen connected.
#!/bin/sh # HDMI-0 == external screen # LVDS1 is laptop screen #check if HDMI-0 is connected if (xrandr | grep "HDMI-0 connected" > /dev/null); then exec echo "HDMI-0 is connected!" & xrandr --output LVDS1 --off xrandr --output HDMI-0 --primary --mode 1920x1080 else exec echo "CRT1 isn't connected!" & xrandr --output LVDS1 --primary --mode 1920x1080 fi #if [ "$1" == "dual" ]; then # xrandr --output LVDS1 --mode 1920x1080 --below HDMI-0 #fi