The fact that you have 3 x 4K monitors connected makes me think all those GTK warnings are some kind of texture size limit being exceeded. Although even basic GPUs should support textures up to 16K in size. Perhaps this is a GTK-specific problem where it tries to internally allocate something that the full desktop resolution and fails.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2004533 Title: very unstable desktop, icons vanish, cannot control windows, cannot resize or scale multi monitors easily. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/2004533/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
