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: >> >> >> Note it only looks fine as long as you're not using fractional >> scaling. Once framebuffer/fractional scaling is enabled in Mutter, it >> looks absolutely terrible, because X11 applications are not scaled >> properly. There are also other glitches if Qt5 applications run as X11 >> apps, and I'm not sure if some prominent Qt5 applications expose the >> correct functionality in X11 mode (e.g. OBS Studio uses PipeWire for >> screencasting when it is in Wayland mode). >> >> 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. > 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). -- 真実はいつも一つ！/ Always, there's only one truth! _______________________________________________ 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
