1622559 - Firefox Wayland on Gnome - Weird Graphical Issues

Status: RESOLVED DUPLICATE of bug 1618486

(Core :: Widget: Gtk, defect, P3)

Description

[u658943]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

1. Install/have firefox stable/nightly on gnome 3.36 (archlinux in my case)
2. Be running a wayland session (in my case on intel graphics)
3. Set the following environment variable: MOZ_ENABLE_WAYLAND=1 (to enable wayland with firefox - I wanted to do this to use kinetic scrolling)
4. Open firefox
5. Issue happens

Actual results:

Describing the attatched video in words: I open firefox and it is immediately very choppy and has flickering issues around the corners of the application. This does not go away if I move the application around. If I try to maximize the application it maximizes but 1/3 of the application is off the screen, and the whole thing is shifted to the right so I can see 1/3 of my desktop wallpaper. If I try to maximize into splitscreen, a similar issue happens but with slightly different positioning.

Expected results:

The application should have opened normally without graphical flickering and glitching, and should be able to maximize and do split screen maximizing without "falling off" the screen. Example of this: how firefox performs when on xorg/xwayland.

Comment 1

[u658943]

https://streamable.com/j0v7y is the link to the video I was referring to in the post

Comment 2

[Andre Klapper]

Sounds a lot like bug 1609538 , but that one says that 68.0 is "unaffected".

Comment 3

[u658943]

(In reply to Andre Klapper from comment #2)

Sounds a lot like bug 1609538 , but that one says that 68.0 is "unaffected".

I should note that I am on version 74 and specified that when making the post but for some reason the post says version 68.

Comment 4

[zuxio0iezici7oov]

I have the exact same issue on Firefox 74 with MOZ_ENABLE_WAYLAND=1. Unsetting that and returning to the X11 backend makes everything behave as expected. Both the flickering of the drop shadows around the top bar, the weird residual drag effect in the drop shadow area of the header bar and the weird offset when maximising.

It's worth noting that in my case this has only started to happen since the GNOME 3.36 release. It's possible that this might be an issue in Mutter, but so far Firefox is the only application that seems to suffer from it.

Comment 5

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

Seems to be caused by wrong wl_subsurface size which is no longer tolerated by mutter-3.36. We should fix that.

Comment 6

[Robert Mader [:rmader]]

The maximize / tiling issue is most likely bug 1609538 (fixed in ff 75), the border thing is most likely bug 1618486 (fixed in 75, see https://bugzilla.mozilla.org/show_bug.cgi?id=1618486#c6)

Comment 7

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

Closing, Thanks.