I just did a variety of tests with linux-image-6.1.0-21-amd64 booted. The bugs manifesting from gimp and localc certainly are not fixed or avoided in any way.
Gimp threshold dialog and localc background color changing both led to severe issues. I tried to change the background on a few cells in localc. Sometimes there was no issue, in which case the screen would very briefly blink black (about as fast as blinking your eyes), and then it would continue functioning fine until the next cell color change attempt. Sometimes the tiled dialog frame (which uses ½ the screen in a Sway) would start flickerly madly. I could close it and hit control-1 try again. I noticed a pattern. If clicking the “color” button in the “background” tab would cause it to go apeshit and I close and immediately retry, it behaves well the 2nd time. So about every other time it would go apeshit. There is a slight difference between the kernels. In kernel 5.x I could go 1 or two steps further. In kernel 6.x, clicking the button literally labeled “color” causes it to go apeshit, blink very slowly (black screens for 1 or 2 whole seconds, followed by a whole system freeze. In kernel 5.x I don’t think clicking the button literally labeled “color” caused any issue, but then when I selected an actual color from the pallet and apply it, then it would go apeshit. Gimp is also a disaster on kernel 6.1.0-21, as with 5.x. But what differs is on kernel 6.x Gimp tended to crash itself without crashing sway, but shortly thereafter the whole system would freeze. On kernel 5.x, Gimp tended to take Sway down with it but without freezing the whole system. One behavior that’s consistent with Gimp on both kernels (5.x and 6.x) and also localc on both kernels is both screens of the 2 headed system would go black for a second or two. Sometimes that’s followed quickly with more severe crashes, and sometimes things continue functioning fine after the blinking. It’s interesting to note that after running kernel 6.1.0-21 and causing several freezes, the journalctl output did not show anything interesting.. no “GPU hang”.
