On Thu, Jun 20, 2024 at 5:41 PM Peter Robinson <pbrobinson@xxxxxxxxx> wrote:
> * gsk: vulkan renderer breaks gtk4 apps on Raspberry Pi 4 and 400 [1]
> GSK now defaults to vulkan and it causes problems on RPi, I initially
> encountered crashing gnome-initial-setup (and later that all GTK4 apps are
> crashing upon startup). Thus I proposed it as a F41 Beta blocker. This
> crashing on app startup will be resolved in the next GTK release, the fix is
> already merged.
> However, there are still issues with GTK4 apps [2], all related to vulkan
> renderer [3] [4] [5]. It is not yet clear if the problems are bugs in GTK or
> mesa. In the end, if proven difficult to fix, we could always switch back to
> older renderer as suggested by Adam during F40 cycle [6].
What is GSK? Was there an official Fedora change for the switch to Vulkan?
That would be the GTK Scene Graph Kit (part of the rendering pipeline in GTK?) . It's an upstream change, so I am not sure if a change is needed (I am not saying it's not, just don't know). They've (GTK upstream) made a change from gl to ngl renderer in Fedora 40 [0] (there was an issue on RPI 4 caused by it that got resolved before the GA [2]), and the current devel version of GTK 4 in rawhide changed that once again from ngl to vulkan.
[2] https://bugzilla.redhat.com/show_bug.cgi?id=2269412
--
Best regards / S pozdravem,
František Zatloukal
Senior Quality Engineer
Red Hat
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