I'm fairly confident the problem is entirely in Mir. Not in Xmir. Especially given it's easy to reproduce with mir-demos.
** Changed in: xorg-server (Ubuntu) Status: Triaged => Invalid -- 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/1406725 Title: Severe graphical corruption running software clients (including Xmir) on android To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1406725/+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