Can confirm the same behaviour on an T450s i am testing for a colleague with the Thinkpad Ultra Dock (40A2) and two NEC EA244WMi attached via Displayport.
The frequency is always changing from one till 30 times per hour. But i think i also got the flickering and screen off at the third and internal screen, altough i am not really sure here. Has anyone tried some kernel or Xserver options to mitigate the issue? ** Summary changed: - Screen flickering on second monitor with docking station + [Thinkpad T450s] Screen flickering on second monitor with docking station -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572667 Title: [Thinkpad T450s] Screen flickering on second monitor with docking station To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1572667/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
