True @Tom i'm running Ubuntu 15.10 also on a Lenovo T450s (20BX000TGE - BIOS 1.16) and have these issues.
Since upgrading to Kernel 4.2.0-19-generic i can't remember that the screen issue has occured again...both external displays are working as expected. I only see this issue: [ 14.334606] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! sometimes after a fresh boot inside dmesg. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1488719 Title: dmesg shows "[drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!" To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1488719/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
