- If I use the DVI input, it reports a DMT (Display Monitor Timings - computer monitor type) with 800x600
- If I use the HDMI input, it reports a CEA (Consumer Electronics Association - TV type) with a preferred resolution of 1280x720
I prefer to use the HDMI input as the cable is thinner and easier to connect (especially important with something as light as the Pi). However, when I do, the Pi picks a rather blurry 1280x720.
I can force this in /boot/config.txt with the following lines:
# set DMT modeHowever, this is annoying if I plug the Pi into a different screen. It is possible to force a specific mode only when a particular monitor is connected.
# set 800x600 @ 60Hz
First, find out the display ID:
pi@mincepi ~ $ tvservice -nThen edit config.txt to add a section in square brackets to override it:
[all]The trailing [all] is to specify that the following lines apply to all monitor types and is just a safe thing to put in case some additional directives are applied below it.