Sergey Menshikov, it is most helpful if you use the computer the problem is reproducible with, and file a new report with Ubuntu via a terminal: ubuntu-bug linux
Please feel free to subscribe me to it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552040 Title: [Lenovo ThinkPad T440s] Laptop sometimes doesn't detect external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1552040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs