I did the following changes and am now flicker-free for two days: In file /etc/default/grub I added to parameter GRUB_CMDLINE_LINUX_DEFAULT: i915.enable_dc=0 intel_idle.max_cstate=2
then: sudo update-grub reboot My laptop is now usable but it cant be a permanent solution to disable energy saving features on a low-energy laptop. I will report in a week if this indeed fixes the flickering or if it just happens less often. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970426 Title: [i915] screen suddenly starts flickering after update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970426/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
