[eoan] Wayland session misses non-GNOME apps theming

[Francois Thirioux]

Running GS 3.34 from proposed (or 3.33.92 too), the GNOME or Ubuntu sessions miss non-GNOME apps theming. I use Adwaita, it runs Yaru (if installed...) and picks up wrong fonts. Examples of such apps : wxMaxima, Thunderbird, Firefox.

Running X session, all is fine. But here too there's something fishy : when I switch from a Wayland session to a X session, the first login sees Synaptic tell me that I run a Wayland session and that I cannot apply changes (etc.). The consecutively second login in a X session does not experience this bug.

This behaviour began with 3.33.92 updates of gdm, gnome-session and gnome-settings-daemon some days ago. Upstream GNOME bugs tells me to report in Ubuntu bugs.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1843499

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Sebastien Bacher (seb128)]

Can you also add a screenshot showing the problem?

[Francois Thirioux (fthx)]

Here wxMaxima (Yaru gtk theme is not installed here).

[Francois Thirioux (fthx)]

Here wxMaxima (Yaru gtk theme IS installed here).
(Needs to restart Wayland session to see it.)

[Francois Thirioux (fthx)]

Sorry, apport does not seem to work. I tried many times, but it has no effect after sending report here ?

[Francois Thirioux (fthx)]

Forgot to send the expected appearance of wxMaxima running Adwaita (here in Xorg session).

[Francois Thirioux (fthx)]

Ok I had time to do some bisects. The faulty upgrade is from this correct one :
gnome-settings-daemon
3.33.90-1ubuntu2

The versions >= 3.33.92 suffer this bug.

[Francois Thirioux (fthx)]

https://gitlab.gnome.org/GNOME/mutter/issues/771

[Francois Thirioux (fthx)]

seems duplicate of :

https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1843107

[Francois Thirioux (fthx)]

solved with 3.34.0.2 Mutter update