Echoing #15, the multi-monitor spec has(had) a concept of 'projection mode', i.e. where the 2nd monitor was known to be used for projection and thus special conditions would be useful. I have long thought that one of the special conditions of a 'projection mode' would be to not have the unity top panel displaying on the projector - because you really only want fullscreen apps (as #15 says).
Unfortunately I couldn't find a way of commenting on the spec document as an ordinary member of public - so my thoughts have been confined to comments in bug reports (e.g. see comment #2 of https://bugs.launchpad.net/unity/+bug/907464)
Echoing #15, the multi-monitor spec has(had) a concept of 'projection mode', i.e. where the 2nd monitor was known to be used for projection and thus special conditions would be useful. I have long thought that one of the special conditions of a 'projection mode' would be to not have the unity top panel displaying on the projector - because you really only want fullscreen apps (as #15 says).
Unfortunately I couldn't find a way of commenting on the spec document as an ordinary member of public - so my thoughts have been confined to comments in bug reports (e.g. see comment #2 of https:/ /bugs.launchpad .net/unity/ +bug/907464)