Yeah I figured it out. Non rootless (rooted!) XMir wants to decide the display power state (DPMS). Unity8/QtMir never had to deal with clients doing that before.
Longer term Unity8 should filter such requests as it's quite rude for an app to be able to turn off your display on you, but I've a branch up to at least not crash.
I've more work to do on this though, as waking up the display isn't working with that branch. To be continued
Yeah I figured it out. Non rootless (rooted!) XMir wants to decide the display power state (DPMS). Unity8/QtMir never had to deal with clients doing that before.
Longer term Unity8 should filter such requests as it's quite rude for an app to be able to turn off your display on you, but I've a branch up to at least not crash.
I've more work to do on this though, as waking up the display isn't working with that branch. To be continued