grub-customizer not work on wayland

[Vascom]

grub-customizer does not work with Wayland:

[vitaliy@Vitaliy-PC ~]$ sudo grub-customizer
Unable to init server: Could not connect: Connection refused

(grub-customizer:5277): Gtk-WARNING **: cannot open display: :0

Using Fedora 25 Workstation with Wayland default. No any problem on Gnome with Xorg Server.

Please, fix grub-customizer for Wayland.

[Daniel Richter (danielrichter2007)]

I used a virtual machine to try (downloaded and installed Fedora 25). It was worked well with grub customizer (with sudo and also with pkexec [used when not running with sudo]). I checked the session type on login screen. It's the first option: "GNOME". The other options are "GNOME Classic" and "Gnome with xorg). I also tried to unistall X11 completely but then the login screen didn't come up anymore, so I'm not sure there's no fallback to X11.

Anyway... grub customizer isn't doing anything X11 specific. It's just GTK (3) based. So if gtk runs good, then gc should do that too. What about other gtk based applications? Is gedit working well with sudo? Or nautilus?

[Jeremy Banks (jeremyb54)]

Hi,

I'm seeing the same problem. While running sudo grub-customizer or sudo gedit or sudo nautilus all results in the same error, the Gtk-WARNING **: cannot open display: :0, it looks like it's related to how the application attempts to get root access. More information about the issue:
https://fedoraproject.org/wiki/Common_F25_bugs#wayland-root-apps
and
https://bugzilla.redhat.com/show_bug.cgi?id=1274451

[Vascom (vascom2)]

Thanks.

[Strangiato Xanadu (strangiato)]

grub customizer is unusable under Wayland on Arch linux too.
Implement Wayland support please.

[Gavin Taylor (gavtaylor)]

the following workaround listed on https://fedoraproject.org/wiki/Common_F27_bugs#wayland-root-apps worked for me:

There is a workaround you can use to allow non-Wayland-native apps to run as root if you absolutely must: from a console as the regular user, run xhost +si:localuser:root.