On Sat, May 1, 2021 at 10:09 AM Neal Gompa <ngomp...@gmail.com> wrote: > > On Sat, May 1, 2021 at 9:48 AM Owen Taylor <otay...@redhat.com> wrote: > > > > On Sat, May 1, 2021, 7:51 AM Neal Gompa <ngomp...@gmail.com> wrote: > >> > >> In general, I'd like to see if we can figure out *why* Mutter isn't > >> doing the right thing for Qt applications and why they're breaking > >> this way, because the fact that they're fine in Plasma Wayland and not > >> on GNOME Wayland points to Mutter needing work here. > > > > > > That doesn't make any more logical sense than "the fact that GTK > > applications work fine with Mutter points to Qt needing work here." Without > > a diagnosis, it's impossible to say. > > > > GTK applications work fine on KWin (modulo some missing Wayland > protocols not being implemented in GTK3), so I'm reasonably confident > that the problem is in Mutter.
How is that relevant? Qt is making some assumptions about the compositor behavior which don't hold with mutter - and we don't know whether it's Qt relying on things that accidentally work with Kwin, or Mutter not properly implementing parts of the Wayland protocol that GTK doesn't use. [roughly speaking ... not comprehensively listing all possibilities] > > If we can put someone who understands Qt together with someone who > > understands Mutter it should be possible to figure out what is going on. If > > the fix is hard, then reverting the Qt change until F35 might be needed, > > but patching a reversion to X into Qt apps one-by-one doesn't seem like > > something we'd want to do: it would leave unpatched apps affected, we might > > forget to remove some of the patches, and it's going to make things > > altogether more confusing. > I agree, do we know anyone who understands Mutter that could work with > someone who understands Qt to figure this out? I've got a couple of > folks in mind who could help on the KDE side (who I've CC'd to this > email). Added Jonas Adahl (all things output), Carlos Garnacho (all things input) and Oliver Fourdan (compat problems expert) to the Cc:- one of them should be able to help. Since the context is trimmed, the thread here is: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/PZCV4KM5W2PI34GT2PK6QUGOVODVA6HW/ Owen _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
