I wonder if the problem is related to panel self refresh, since it is affected by hardware cursor movement.
Please try adding kernel parameter: i915.enable_psr=0 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and then run: sudo update-grub and reboot. If that's the problem then it would make sense this bug is specific to the model of LCD in this laptop. https://www.kernel.org/doc/html/v5.3/gpu/i915.html#panel-self-refresh-psr-psr-srd https://wiki.archlinux.org/index.php/intel_graphics#Screen_flickering ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1850066 Title: [Star LabTop (Mk III)] Screen backlight pulses rapidly when cursor is still. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1850066/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
