OK, so I just tried this out on the same host I did my Fedora 40 testing, a Windows 11 23H2 system with Intel graphics (no NVIDIA) and VMWare Player 17.
I grabbed the Ubuntu 24.04 beta desktop image - ubuntu-24.04-beta-desktop-amd64.iso - and booted it. From that environment I could reproduce the bug. I tested using "Files" (nautilus) - I ran it and it was completely messed up in much the same way as on Fedora, lots of bits of the UI just not shown at all.
Then I ran an install. I guess your installs work differently from ours, they don't just dump the live environment onto the disk, because when I booted the installed system, it had mesa 24.0.5 already (verified with `dpkg -l`). And for me, the bug is indeed fixed. Now when I run Files, it renders perfectly. Ditto Text Editor (another GTK4 app).
However, reading Oliver's original description again, it really doesn't sound like the same bug. I didn't observe any "black flickering artifacts" during install, and I never saw such a thing in Fedora 40 testing either. I also didn't see anything like "desktop screen is black and then locks up the whole application, cannot shutdown or interact with Player". For me, both in Ubuntu and Fedora, when a system is affected by this bug, GTK 4-based apps tend to be missing large amounts of UI elements, but the desktop shell itself is not affected at all, let alone does it lock up or become unresponsive.
So, I think Oliver is seeing something else, but I don't know what. I'd recommend you get a few more folks to test and see what they see, and report the host hardware config.
OK, so I just tried this out on the same host I did my Fedora 40 testing, a Windows 11 23H2 system with Intel graphics (no NVIDIA) and VMWare Player 17.
I grabbed the Ubuntu 24.04 beta desktop image - ubuntu- 24.04-beta- desktop- amd64.iso - and booted it. From that environment I could reproduce the bug. I tested using "Files" (nautilus) - I ran it and it was completely messed up in much the same way as on Fedora, lots of bits of the UI just not shown at all.
Then I ran an install. I guess your installs work differently from ours, they don't just dump the live environment onto the disk, because when I booted the installed system, it had mesa 24.0.5 already (verified with `dpkg -l`). And for me, the bug is indeed fixed. Now when I run Files, it renders perfectly. Ditto Text Editor (another GTK4 app).
However, reading Oliver's original description again, it really doesn't sound like the same bug. I didn't observe any "black flickering artifacts" during install, and I never saw such a thing in Fedora 40 testing either. I also didn't see anything like "desktop screen is black and then locks up the whole application, cannot shutdown or interact with Player". For me, both in Ubuntu and Fedora, when a system is affected by this bug, GTK 4-based apps tend to be missing large amounts of UI elements, but the desktop shell itself is not affected at all, let alone does it lock up or become unresponsive.
So, I think Oliver is seeing something else, but I don't know what. I'd recommend you get a few more folks to test and see what they see, and report the host hardware config.