Re: sudo / su with GUI apps - ?

[lejeczek]

On 11/01/2022 19:54, C Linus Hicks wrote:
> Making some assumptions about your requirements:
> Make sure xauth is installed
> Your DISPLAY environment variable is likely: ":0" - just verify it is set
> Run the command: "xauth list"
> Copy the line that has "<hostname>/unix:", all three parts
> Use su - or sudo to get an interactive session for alternate user
> Run xauth command with no arguments
> Type "list" at the prompt
> Assuming this user currently doesn't have permission (no entry for host/display):
> Type "add" and then paste the line you copied from step 4
> Type "exit" command from xauth
> Firefox should now be able to use the display, and your addition is persistent

oughh.. It turns out that

export XAUTHORITY=...

is redundant and I had it in .bash_profile of my 'regular', 
sudo/su from_user. Nor it's needed for sudo/su to_user.
Leave it vanilla default and 'firefox-wayland' works 
beautifully in F35, at least with 'su'

many thanks everybody, L.