How to load Xmir on Ubuntu 13.10 Nexus 7 tablet, unity8 + lightdm + mir, unity-system-compositor + Xorg installed.

Still getting message above after system reboot in the /var/log/Xorg.0.log :

[    81.542] (II) "glx" will be loaded by default.
[    81.542] (WW) "xmir" is not to be loaded by default. Skipping.
[    81.542] (II) LoadModule: "dri2"

Thanks

Note: No, this question is not duplicate with How to load Xmir on Ubuntu 13.10 because. My note that this do not work on Ubuntu Touch Saucy + Nexus7 tablet was removed by fossfreedom. I do feel it duplicate also, but this moderator issue. There is no chance to response on equal topic, even when it is not obviously solving the problem. I do consider this confusing and causing incomplete answers.