[jan:~]$ xrandr --output VGA-0 --newmode "1024x768"   82.00  1024 1088 1192 1360  768 771 775 805 -hsync +vsync
X Error of failed request:  BadName (named color or font does not exist)
  Major opcode of failed request:  156 (RANDR)
  Minor opcode of failed request:  16 ()
  Serial number of failed request:  16
  Current serial number in output stream:  16