X broken as drmSetMaster failed

Standard

That was a bad evening, I upgraded my debian box and X failed to start throwing below errors.

6017.269] (EE) modeset(0): drmSetMaster failed: Permission denied
[ 6017.269] (EE)
Fatal server error:
[ 6017.269] (EE) AddScreen/ScreenInit failed for driver 0

After spending hours I came to know latest X can’t run without root privilege now. We need to have legacy package of xserver to run X as non root user

sudo apt-get install xserver-xorg-legacy

then the wrapper config, so edit/create  /etc/X11/Xwrapper.config  to have the below two lines only.

allowed_users=console
needs_root_rights=yes

X is back, What a relief .

 

One response »

  1. Wow! Just wow! Just upgraded my Nvidia driver on Ubuntu 18.10 and got stuck in a login loop with the same exact error.

    Holy cows it indeed needed root, thanks for sharing man!!! It fixed the issue! Awesooome!!!

    Like

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