Today I had a kernel bug, which appeared at second 42 after the start, and restarting lightdm helped, contrary to my previous experience. Unfortunately, I did not save the dmesg. Thus, the kernel bug may or may not affect the mouse pointer issue. The kernel bug also does not appear in dmesg on every restart. If I see it again, I'll paste the dmesg here.
Today I had a kernel bug, which appeared at second 42 after the start, and restarting lightdm helped, contrary to my previous experience. Unfortunately, I did not save the dmesg. Thus, the kernel bug may or may not affect the mouse pointer issue. The kernel bug also does not appear in dmesg on every restart. If I see it again, I'll paste the dmesg here.