I take it back. On Mir's android platform the predictive bypass optimization will never delay rendering by more than 10ms at most. So an incorrect EDID won't stop Mir from compositing. Although there might be deeper Android code that is confused by the invalid refresh rate reported by the monitor...
Equally possible is a bug in Unity8/QtMir causing the black screen... ** Also affects: qtmir (Ubuntu) Importance: Undecided Status: New ** Also affects: unity8 (Ubuntu) Importance: Undecided Status: New ** Tags added: multimonitor -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. https://bugs.launchpad.net/bugs/1574777 Title: tablet connected to monitor shows black screen - Idek Iiyama PL2409HD Status in Canonical System Image: New Status in Mir: New Status in mir package in Ubuntu: New Status in qtmir package in Ubuntu: New Status in unity8 package in Ubuntu: New Bug description: When connecting my M10 device to my monitor (Idek Iiyama PL2409HD), the monitor shows that there is a signal on hdmi, but the screen stays black. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1574777/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp