On 12/31/20 12:50 PM, Charles Curley wrote: > I am using Bullseye as updated to yesterday. It is my custom to log in > to XFCE as my regular user, then "su -" in order to run as root, > including GUI programs. In the process, in the past $DISPLAY has been > set. > > I now find on bullseye that $DISPLAY is not being set. However, even if > I set DISPLAY manually or run 'su -w DISPLAY -', programs like xclock > complain that they cannot open the display. > > How do I allow root to use the display? >
Before the su try xhost SI:localuser:root or just xhost + You will still have to set $DISPLAY manually