This started after an update a couple days ago. System is Arch, pIasma 5.13.3.-1 is current version. Mesa drivers did not update when this issue showed up.

I run two GPUs with 3 monitors apiece. After rebooting, the mouse works fine on the monitors attached to the AMD 6870 but on the monitors attached to the AMD 7770, the mouse is very jerky and disappears. Log out and log back in, everything seems normal, but if I reboot, does it again.

Should I be filing a bug or is this some edge case that is going to be too tough to troubleshoot for the potential users involved? (because I've gotten used to being an edge case with this configuration).