Change screen resolution:
Create a new resolution using cvt
$> cvt 1600 900 75 1600x900 74.89 Hz (CVT 1.44M9) hsync: 70.55 kHz; pclk: 151.25 MHz Modeline "1600x900_75.00" 151.25 1600 1704 1872 2144 900 903 908 942 -hsync +vsync Add a new mode to the existing list (newmode is the name and remaining portion is )
$ sudo xrandr --newmode "1600x900_75.00" 151.25 1600 1704 1872 2144 900 903 908 942 -hsync +vsync Find the current display
$ xrandr | grep -e " connected [^(]" | sed -e "s/([A-Z0-9]+) connected.*/\1/" Virtual1 Add new display mode where is the output from the previous command
$ sudo xrandr --addmode 1600x900_75.00 This will add the new resolution to your existing list of supported resolutions. You can then choose the right option from the "display settings" or following command
$ xrandr --output Virtual1 --mode "1600x900_75.00" To make this change permanent,
$ cat> ~/.xprofile sudo xrandr --newmode "1600x900_75.00" 151.25 1600 1704 1872 2144 900 903 908 942 -hsync +vsync sudo xrandr --addmode Virtual1 1600x900_75.00 xrandr --output Virtual1 --mode "1600x900_75.00"