X11 Connection Rejected Due To Wrong Authentication

hi experts

I got a bit of problem with the below situation:

Code:
root@kvm_host1:/mnt/nfs# virt-manager &
[1] 4663
root@kvm_host1:/mnt/nfs# X11 connection rejected because of wrong authentication.

[1]+  Done                    virt-manager
root@kvm_host1:/mnt/nfs# su test
test@kvm_host1:/mnt/nfs$  virt-manager &
[1] 4679

As you can see, I ssh into my ubuntu host with user test, but during some nfs config I su into root, then try to launch virt-manager GUI via X11. Which obviously fails I guess since root wants to launch X11 session but I established the session as user test.

My question is this: Is there a way to stop this from happening? to allow my root to launch the GUI as well?

Thanks


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4142 root 20 0 115m 73m 4032 R 100.0 3.9 39:44.15 dropbox
644 root 20 0 0 0 0 S 0.3 0.0 0:01.02 usb-storage
4076 cliffm 20 0 376m 17m 10m S 0.3 0.9 0:03.69 gnome-terminal
4145 cliffm 20 0 1654m 478m 47m S 0.3 25.4 4:12.97 firefox
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2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.15 ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.43 kworker/0:0
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8 root rt 0 0 0 0 S 0.0 0.0 0:00.04 migration/1
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3 root 20 0 0 0 0 S 0.0 0.0 0:00.15 ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.44 kworker/0:0
6 root rt 0 0 0 0 S 0.0 0.0 0:00.02 migration/0
7 root rt 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
8 root rt 0 0 0 0 S 0.0 0.0 0:00.04 migration/1
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cliffm@debian:~$