Any window with a non-1.0 (less than 0xff) alpha or X channel gets discoloured when alt+tabbing: mir_demo_client_egltriangle -b 0.2 -- --desktop_file_hint=unity8
And you have to keep in mind that the 'X' byte might be uninitialized, so another good test case is: Xmir :0 -rootless -flatten -sw --desktop_file_hint=unity8 env DISPLAY=:0 gedit and then Alt+Tab. Observed: Parts of the window in the switcher are discoloured/whiter. This is Unity8 treating the uninitialized X byte as an alpha byte. Although even RGBA windows get discoloured with low values of A. Observed: In the background the fullscreen blur is also faulty -- it's clearer and not blurred in the same regions as are affected by the first issue. ** Changed in: qtmir Status: Incomplete => New ** Changed in: qtmir (Ubuntu) Status: Incomplete => New ** Changed in: unity8 (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1510386 Title: RGBX windows become discoloured (more white or translucent) and corrupt in the Unity8 window switcher Status in QtMir: New Status in qtmir package in Ubuntu: New Status in unity8 package in Ubuntu: New Bug description: RGBX windows become discoloured (more white or translucent) and corrupt in the Unity8 window switcher (Alt+Tab) This is most noticeable in Xmir, but also with: mir_demo_client_multiwin -p2 -a--desktop_file_hint=unity8 (ignoring the fact that Unity8 also doesn't show the correct colours) This might help: I fixed the same bug in Mir's demo shells yesterday: https://code.launchpad.net/~vanvugt/mir/fix-1423462/+merge/275661 To manage notifications about this bug go to: https://bugs.launchpad.net/qtmir/+bug/1510386/+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