XMir 1.0 (the old Xorg extension) is now deprecated and is not being maintained or fixed. It is replaced by the new 'Xmir' binary (package 'xmir') introduced in Ubuntu 15.10 wily.
** Changed in: xorg-server (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1232343 Title: XMir Screen flickering when running steam or SDL games Status in libsdl2 package in Ubuntu: Invalid Status in xorg-server package in Ubuntu: Won't Fix Bug description: Up until last week most of my steam catalogue was running well under xmir, now a terrible screen flickering occurs when launching any steam or SDL game. The screen flickers in intesity multiple times per second and does so dramatically as if going from full brightness to full dim. I can find no errors in the logs. grep -i xmir /var/log/Xorg.0.log [ 22424.891] (II) "xmir" will be loaded by default. [ 22424.893] (II) LoadModule: "xmir" [ 22424.893] (II) Loading /usr/lib/xorg/modules/extensions/libxmir.so [ 22424.916] (II) Module xmir: vendor="X.Org Foundation" [ 22425.186] (II) [XMir] Handling focus event, new_focus = TRUE I am using a System 76 Lemur Ultra I7 with intel HD4000 graphics and an up to date 13.10 installation. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libsdl2/+bug/1232343/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp