Thanks for your reply. I found the solution - https://forums.lenovo.com/t5/ThinkPad-11e- Windows-E-and-Edge/Thinkpad-E550-External-monitor-flickers-constantly- while/td-p/2046119/page/6 , new VGA firmware is there https://support.lenovo.com/cz/en/documents/HT104459?utm_source=Email&utm_medium=Email&utm_campaign=email%20trace
It's not xorg problem, it's Thinkpad E550 VGA firmware related bug. Thank you for your time. Jan Čepelka -- 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/1580219 Title: screen switches off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1580219/+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
