Comment # 12 on bug 1202526 from Luciano Santos

(In reply to C J from comment #11)
> (In reply to Luciano Santos from comment #10)
> > It's nice to here it's working for you.
> 
> This was on KDE. On Gnome it still isn't applying the theme.
> 
> So, you fixed the qt6 apps (great thanks !), but the qt5 apps sill never had
> the adwaita theme applied (on gnome qt5 apps have a greyish-greeny theme).
> 
> What about that ?

I'm sorry to hear that, but I have to say I was under the impression, according
with you report on https://bugzilla.opensuse.org/show_bug.cgi?id=1202446, that
other Qt apps were fine.

> (and on X11 Gnome hidpi (4k) the qt6 and qt5 scaling is completely
> different. Is there anything you can do about this ?

I'm not sure right now.

> By default qt6 scaling was fine, but qt5 was too big (when using 150% font
> scaling in Gnome).
> 
> I was able to fix the qt5 scaling by adding these to /etc/environment
> > export QT_AUTO_SCREEN_SCALE_FACTOR=0 
> > export QT_SCREEN_SCALE_FACTORS=1.5 
> > export QT_SCALE_FACTOR=1
> 
> But now the qt6 mkvtoolnix has the same problem qt5 apps had before.
> 
> So, either qt5 scaling works or qt6, but not both together.
> 
> Ayn idea how to fix this ?
> 
> Thanks.

Since bugzilla is no place for user support we can use other channels instead,
be it using mailing lists be it instant messaging in IRC/Matrix/Discord. There
are many people out there in the openSUSE community that may have more accurate
answers and maybe know if there's something to be done on our side to help the
problem go away or at least mitigate it.

Now, when the changes I made to QGnomePlatform arrive at Tumbleweed we can have
another look how Qt 5 and 6 apps will behave for you. Maybe this scaling issue
could be some kind of limitation Adwaita-qt has or whatever, for now I can't
say much. I don't want to start chasing bugs just yet.

Then if the issue(s) still persist(s) (Adwaita not applying for Qt 5 apps
and/or the scaling mess), even with the new changes of QGnomePlatform, you can
open a new bug targeting that/those issue(s) and please CC me, OK?!