Installing

Differences between revisions 3 and 4

Ubuntu 13.10

These are Ubuntu 13.10 specific instructions, please refer to the Mir development wiki for the most recent instructions.

Known issues

as of 8/22/13 there is still a security bug (https://bugs.launchpad.net/xmir/+bug/1192843) that might expose your confidential information. A fix is currently being worked on (https://code.launchpad.net/~robertcarr/mir/client-focus-notifications)

no proprietary driver support (dependent on 3rd parties)
“input events seeming slow/last buffer render delay”
- https://bugs.launchpad.net/mir/+bug/1199450
no multimonitor support
- https://bugs.launchpad.net/mir/+bug/1102760
no bypass composition support at the system compositor level
- https://bugs.launchpad.net/mir/+bug/1109963
no power management enabled
- https://bugs.launchpad.net/xmir/+bug/1193222
no VESA support
- https://bugs.launchpad.net/mir/+bug/1118903
XMir always listening to keyboard, passwords may appear in other X sessions
- https://bugs.launchpad.net/xmir/+bug/1192843
- https://bugs.launchpad.net/mir/+bug/1102757

Removing the system-compositor-testing PPA

Should you have been using the system-compositor-testing PPA you will have to remove the PPA and it's content from your system prior to installing XMir from archive.

$> sudo apt-get update
$> sudo apt-get install ppa-purge
$> sudo ppa-purge ppa:mir-team/system-compositor-testing
$> sudo rm /etc/apt/preferences.d/50-pin-mir.pref

Then, follow "Installing from Archive".

Installing from Archive

Prior to landing Mir and related packages in the Ubuntu archive, we offered XMir via the system-compositor-testing ppa (ppa:mir-team/system-compositor-testing). As of August 9, 2013 XMir can be installed directly from archive via

$> sudo apt-get update
$> sudo apt-get dist-upgrade
$> sudo apt-get install unity-system-compositor
$> sudo restart lightdm

Verifying that unity-system-compositor is running

You can check in 3 ways whether unity-system-compositor is running:

$> ps aux | grep unity-system-compositor
$> grep -i xmir /var/log/Xorg.0.log
$> ls -l /var/log/lightdm/unity-system-compositor.log

Removing unity-system-compositor

temporarily

if you want to temporarily switch back to using X.org on your system, run following commands:

$> sudo vi /etc/lightdm/lightdm.conf.d/10-unity-system-compositor.conf

and add a comment to the second line:

[SeatDefaults]
#type=unity

and restart lightdm

$> sudo restart lightdm

if you want to enable XMir back again, you simply remove the comment: [SeatDefaults]
type=unity