Common Display configurations for all Platforms

Setting the HDMI or the DP Screen Resolution

The screen resolution can be modified using the xrandr utility or RandR protocol.

Export the DISPLAY variable:
```
$ export DISPLAY=:0
```
Obtain the applicable resolutions list:
```
$ xrandr
```
The resulting output shows a list of the connected HDMI/DP settings.
Switch the resolution to the display resolution that you want:
```
$ xrandr --output HDMI-0 --mode <res>
$ xrandr --output DP-0 --mode <res>
```
Where <res> is the desired resolution, for example, 640x480.

The highest rate supported for the specified mode is automatically chosen.
Select a refresh rate:
```
$ xrandr --output HDMI-0 --mode <res> --rate <refresh_rate>
```
Where <refresh_rate> is the refresh rate you want, for example, 60.

Use xrandr to display all supported refresh rates for a mode.