Comment 16 for bug 742544

My setup is similar to what has been described above, placing a big monitor to the left side of your laptop will give you the launcher in the middle. To see it you have to get to left side of the left screen to get the launcher back, which is annoying.
However I like to keep the launcher on my laptop. When I attach my laptop to a beamer, I do want all people to see the launcher popping up when I have to start an application. Now I could put the beamer virtually to the right side to solve that again, but I was thinking of a more elegant, but more complex solution. It would be more elegant to be able to choose the monitor to show the launcher (which can be done by the ability to choose the the primary I guess), and then be able to position the launcher to the left or the right side on that screen.
It would be even more elegant to store the setup for different monitor setups. So when I connect to a beamer it will attach the launcher to the right side on my laptop screen, and when I connect my normal screen it will automatically switch to the left side of the monitor instead. Actually monitor settings are already stored, so probably the only thing that has to be added is the positioning of the launcher, and a nice repositioning effect off course.
The ability to choose another primary screen does not solve the issue (without the need to log out and in at least) When I use xrandr to reselect my primary, it does not transfer the launcher to the right spot. The dash moved immediately to the left side (but did not resize, giving me a dash the size of my laptop on my much larger monitor). The launcher however still resides on the laptop, giving it a disconnected and misplaced look, and still only opens when I touch the left part of my monitor. I guess both are refreshing issues.