Re: sudo / su with GUI apps - ?

[Roberto Ragusa]

On 1/12/22 9:38 PM, lejeczek via users wrote:
> 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'

My approach to let user bbb open X11 windows on the desktop of user aaa is:

aaa@localhost$ xhost si:localuser:bbb

Then you just have to su to bbb and

bbb@localhost$ export DISPLAY=:0