btw, as record. After reboot of this issue. I also updated BIOS by fwupd to make sure every thing is updated to date for following debugging.
$ fwupdmgr get-updates No upgrades for XPS 13 9380 System Firmware, current is 0.1.7.0: 0.1.7.0=same, 0.1.6.0=older, 0.1.5.0=older, 0.1.4.0=older, 0.1.3.2=older -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1844934 Title: screen jitter after long idle To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1844934/+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
