I would like to have the touchscreen and hdmi displays mirrored but I can't find any info or setting to mirror. Running Raspbian Buster and using an element 14 7" touchscreen.
Edit: I got mirroring to work using
xrandr --output HDMI-1 --same-as DIS-1
but the resolutions are still messed up. I would like fullscreen to work on both displays but when I go fullscreen it shows right on HDMI but the touchscreen just shows the top left corner of the video.
Edit 2: Forcing HDMI resolution to same as touch screen helps but now when I go fullscreen in VLC video only shows on HDMI