X11 applications not working under Wayland with AMD GPU since 32770

[joaquinfll]

Running a Gnome Wayland session makes applications needing X11 not show. Same applications works under a Gnome X11 session.

Steps

• Login in a Gnome Wayland session
• Execute Terminal: GDK_BACKEND=x11 gedit

Outcome

• The window does not appear
• A rectangle is visible from Gnome overview when mouse-over but there is no content (clear space)

Expected outcome

• Gedit window should appear

Hardware
AMD Radeon Vega 64

Clear Linux

cat /etc/os-release
NAME="Clear Linux OS"
VERSION=1
ID=clear-linux-os
ID_LIKE=clear-linux-os
VERSION_ID=33390
PRETTY_NAME="Clear Linux OS"
ANSI_COLOR="1;35"
HOME_URL="https://clearlinux.org"
SUPPORT_URL="https://clearlinux.org"
BUG_REPORT_URL="mailto:dev@lists.clearlinux.org"
PRIVACY_POLICY_URL="http://www.intel.com/privacy"
BUILD_ID=33390

Booted Live CD 33420 and has the same issue.
Booted Live CD 33420 with Virt-Manager and the issue does not happen.

I have tested several Live CDs and this issue starts happening with 32770. Version 32760 still works.

[romulasry]

All I get is:

GDK_BACKEND=X11 gedit

(gedit:97732): Gtk-WARNING **: 23:06:32.156: cannot open display: :0

[joaquinfll]

I just updated the command. I think it should be lower case "x11"

[romulasry]

Same issue with Firefox. Just tested.

So the problem is with XWayland, I believe.

[romulasry]

Nighly Firefox doesn't run either. Why isn't it running it under Wayland by default?

Edit: Looks like it will in the future: https://bugzilla.mozilla.org/show_bug.cgi?id=1543600

[joaquinfll]

Are you using an AMD GPU?

[romulasry]

Yes. AMD rx 480.

[joaquinfll]

This is again working since 33580.

Do we know what was the root cause?

[joaquinfll]

No reply from maintainers.