can't remember when, but I've hit this bug before, probably a shader issue and it has been fixed in nouveau for a while now.
** Changed in: unity (Ubuntu) Status: Confirmed => Invalid ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: Confirmed => Fix Released ** Changed in: nux (Ubuntu) Status: Confirmed => Invalid ** Changed in: unity Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1196522 Title: [nouveau] Nux/Unity 7 panels appear as brightly coloured gradients under XMir with nouveau Status in Mir: Invalid Status in Unity: Invalid Status in “mir” package in Ubuntu: Invalid Status in “nux” package in Ubuntu: Invalid Status in “unity” package in Ubuntu: Invalid Status in “xserver-xorg-video-nouveau” package in Ubuntu: Fix Released Bug description: Glitches are visible in this video: http://www.youtube.com/watch?v=twrWVEBih_E&feature=share Configuration: Pentium IV 1.5 GB RAM Nvidia 6200 Graphic Card To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1196522/+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