Confirmed, but it doesn't seem to happen every time. 'tilded' appears to be a native Qt app, although I'm not sure if that's relevant. When I ran it under mir_proving_server there was no ghost window problem. So this makes me think either Unity8 is displaying windows whose state is 'hidden', or we have a general window management/scene bug (because similarly after closing some dialogs they stay visible).
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1665286 Title: [unity8] A ghost (shadow only) window opens with some app windows/menus Status in Canonical System Image: Confirmed Status in Mir: Confirmed Status in MirAL: Confirmed Status in gtk+3.0 package in Ubuntu: Confirmed Status in mir package in Ubuntu: Confirmed Status in miral package in Ubuntu: Confirmed Status in qtubuntu package in Ubuntu: Confirmed Status in unity8 package in Ubuntu: Incomplete Bug description: ubuntu 17.04 unity8 install tiled, apt install tiled launch tiled, you'll see a transparent window opened beneath the main window called "Object Types Editor" see attached screenshot To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1665286/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

