Description of problem:

Please refer to 126771


Under native X11 the GNOME Display Manager (gdm) creates an xauth
security token to allow apps access to the X11 display server, but under
Wayland it doesn't.  I tried this but so far I haven't been able to make
it work:


Version-Release number of selected component (if applicable):

Gnome 3.18 or Wayland


How reproducible:

under Wayland, X11 clients run as
another user (via su or sudo) are not authorised to connect to the X11
display server.  However under native X11, clients run as another user
are authorised to connect to the X11 display server.


Under native X11 this works:

    [mike@localhost ~]$ sudo xdpyinfo | head -3
    [sudo] password for mike:
    name of display:    :0
    version number:    11.0
    vendor string:    Fedora Project


Under Wayland this fails:

    [mike@localhost ~]$ sudo xdpyinfo | head -3
    [sudo] password for mike:
    No protocol specified
    xdpyinfo:  unable to open display ":0".


So far I have found these workarounds to allow GParted to run:

1) Login as root to the GNOME on Wayland desktop

2) Allow all local connections to the X11 display server

    xhost +local:


Under native X11 the GNOME Display Manager (gdm) creates an xauth
security token to allow apps access to the X11 display server, but under
Wayland it doesn't.  I tried this but so far I haven't been able to make
it work:

    [mike@localhost ~]$ export XAUTHORITY=/run/user/`id -u`/Xauthority
    [mike@localhost ~]$ touch $XAUTHORITY
    [mike@localhost ~]$ xauth add $DISPLAY . `mcookie`
    [mike@localhost ~]$ sudo xdpyinfo | head -3
    Invalid MIT-MAGIC-COOKIE-1 keyxdpyinfo:  unable to open display ":0".


Thanks,
Mike Fleetwood (GParted Developer)
Steps to Reproduce:
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Actual results:


Expected results:


Additional info: