It's possible that a newer Mesa has fixed this problem already. Because a similar setup (LLVMpipe software rendering in Xmir) on desktop has no discolouration:
Working: xenial with Mesa 11.2.0 (desktop) Broken: vivid with Mesa 10.5.9 (Ubuntu Phone stable channel) P.S. If there's any way to tell LibreOffice to not use OpenGL, that might also help. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1573470 Title: BQ M10 tablet. Libreoffice Impress display wrong colors To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1573470/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp