Public bug reported: Turns out that Displayport Multi-Stream Transport has not been implemented for Skylake, causing blank screen issues (now that hangs have been fixed..) when plugging external displays to outputs connected to the MST hub. Disabling DP MST allows at least one of the outputs to work, if there are several behind the hub.
** Affects: linux (Ubuntu) Importance: Undecided Status: Triaged ** Affects: linux (Ubuntu Vivid) Importance: Undecided Assignee: Timo Aaltonen (tjaalton) Status: Triaged ** Affects: linux (Ubuntu Wily) Importance: Undecided Status: Triaged ** Also affects: linux (Ubuntu Wily) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Vivid) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Vivid) Status: New => Triaged ** Changed in: linux (Ubuntu Vivid) Assignee: (unassigned) => Timo Aaltonen (tjaalton) ** Changed in: linux (Ubuntu Wily) Status: New => Triaged ** Changed in: linux (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1532127 Title: [SKL] Disable DP MST Status in linux package in Ubuntu: Triaged Status in linux source package in Vivid: Triaged Status in linux source package in Wily: Triaged Bug description: Turns out that Displayport Multi-Stream Transport has not been implemented for Skylake, causing blank screen issues (now that hangs have been fixed..) when plugging external displays to outputs connected to the MST hub. Disabling DP MST allows at least one of the outputs to work, if there are several behind the hub. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1532127/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp