[ST4] Titlebar glitches

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[ST4] Titlebar glitches #4134

Open pygillier opened 3 years ago

pygillier commented 3 years ago

Description

During normal usage, the titlebar randomly disappears or glitches (flashing & artifacts) and the titlebar of underneath windows is displayed

Steps to reproduce

Open ST4
Open files
Edit files

Expected behavior

No glitches or disappearance

Actual behavior

Visual glitches.

Environment

Build: 4103 (still happening in 4104)
Operating system and version: Ubuntu 20.10
[Linux] Desktop Environment and/or Window Manager: Budgie

BenjaminSchaaf commented 3 years ago

Can you demonstrate the kind of glitches with a video or screenshot?

pygillier commented 3 years ago

Ahah, totally forgot to attach it.

As you can see, the titlebar of my firefox instance "replaces" the one from ST. st4-4103

BenjaminSchaaf commented 3 years ago

Are you using hardware acceleration?

pygillier commented 3 years ago

Are you using hardware acceleration?

Yes, I do. I've just disabled it and will check if the bug still happen.

pygillier commented 3 years ago

@BenjaminSchaaf after more than an hour with hardware acceleration disabled, I can confirm it's related.

BenjaminSchaaf commented 3 years ago

The titlebar is drawn entirely by GTK and GTK rendering with hardware acceleration is a little broken depending on the drivers you're using, so there's not really anything we can do about it. GTK4 fixes these issues, but it's barely available anywhere.