I have a Toshiba laptop with 16.04 on it.
The screen resolution is set to 1024 x 768 i.e. 4:3
How can I change it to a 16:9 resolution?
If I go into settings - screen display it says Built-in Display - which is fine but the drop-down box for resolution only has the one option 4:3
xrandr -q xrandr: Failed to get size of gamma for output default Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768 default connected primary 1024x768+0+0 0mm x 0mm 1024x768 76.00*
Help please !