Comment 14 for bug 1521403

I have now prevented Xmir from turning the physical display off under Unity8:

https://git.launchpad.net/~xmir-team/xorg-server/+git/xmir/commit/?id=9a508dc77fd68f8ba321e82ed0d7c36df1ddf745

However it appears Xmir will still blank the Xmir window to black. Sounds like we need to launch Xmir with additional options to prevent that...

-p # screen-saver pattern duration (minutes)
-s # screen-saver timeout (minutes)
v video blanking for screen-saver
-v screen-saver without video blanking