macos: main window flickers if I open about/settings page #106

Pretty much the title. Here's a recording of it. Happens with all dialogs/windows and it's much worse in person :)

The video URL returns a 404. Can you re-upload it?

Here it is.

Are you talking about the redraw when the popup opens?

Yes

This looks like a GTK issue. @dehesselle do you have an idea?

What macOS version do you use?

I am asking because two friends don't see this behaviour.

This issue was there on 26.2 few days ago and now on 26.5 as well.

@ckruse wrote in #106 (comment):

What macOS version do you use?

I am asking because two friends don't see this behaviour.

I have seen this kind of bug on Liquid Glass (Latest 26.5) too

Can you do some testing? Start Gitte like this:

GSK_RENDERER=cairo gitte
# second test
GSK_RENDERER=gl gitte
# third test
GSK_RENDERER=ngl gitte
# fourth test
GSK_RENDERER=vulkan gitte

Does the repaint also happen with all of these renderers?

GSK_RENDERER=cairo gitte seems to work. All other renderers have the same flicker.

OK, that confirms it. It is a GTK problem with hardware-accelerated renderers.

I will add a setting that enables the user to enforce the cairo renderer

I can only reproduce the problem when Gitte is in fullscreen. Can you confirm that @Surendrajat ?

Yes. It only happens when it's on full screen.

The workaround will be released later today. You then can disable hardware rendering in the settings.