OK, so we've narrowed the problem down to Qt when used in combination with nouveau.
The bug is not in Unity8 or Mir. I'm not sure which Qt packages to assign this bug to though. ** Also affects: qtbase-opensource-src (Ubuntu) Importance: Undecided Status: New ** Also affects: qtdeclarative-opensource-src (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1453438 Title: nouveau + Qt apps = corrupt fonts Status in Mir: Invalid Status in qtbase-opensource-src package in Ubuntu: New Status in qtdeclarative-opensource-src package in Ubuntu: New Status in unity8 package in Ubuntu: Invalid Bug description: Fonts are not rendered correctly, screenshot here http://i.imgur.com/J4vQ5rT.jpg http://i.imgur.com/gxF1Me0.jpg Ubuntu Next 15.10 AMD64 / Nvidia 8600GT also the TTY fonts are messed up To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1453438/+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