*** This bug is a duplicate of bug 1806242 *** https://bugs.launchpad.net/bugs/1806242
https://www.dedoimedo.com/computers/intel-microcode-atomic-update.html TLDR ` Apparently, hardware-based panel refresh supports automatic entry and exit from self-refresh. It is also an atomic operation, which means the processor will wait for it to complete until it finishes. Instinctively, we can assume there is some kind of an issue here, because if it takes to long for the screen to refresh, it may appear frozen. Perhaps the driver misses buffers, or something else in the driver blocks the self-refresh functionality. This is not a guaranteed reason for the problem, but it a decent rule of thumb for what we are facing. And now, we can, with some confidence, attempt to apply a workaround that may help mitigate the freeze issues until a complete solution is provided with a driver update as part of normal distro update cycle. Hopefully. ` Work arounds Install Intel's proprietary firmware (Intel microcode) Under /etc/modprobe.d/, you will need to create a configuration file i915.conf, if it does not already exist. Then, inside this file, you will need to add the following line: options i915 enable_psr=0 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1813423 Title: System freezing or flickering with i915 error [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813423/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp