If the the outer xmonad is run as another user (please, not as root!) that will not be a problem. There are only two problems I can see and none of them are xmonad specific. The first one is that you are running Xephyr and when I tried it the other day I was a bit disappointed with the performance. It was slow and the mouse and keyboard grabbing was misbehaving quite a bit. The second problem is with the global xmobar panel. You may wish to remove it while watching a movie or something else in full screen, that will be hard since then you need to change resolution in Xephyr. If this a development workstation or something and those things doesn't matter for you, then I think that your idea should work just fine. /Anders On Fri, May 15, 2009 at 17:16, wrote:

Rickard Nilsson writes:

...

However, I am pondering a different setup, where I only start one Xserver running Xmonad. Then I would let that instance of Xmonad start two instances of Xephyr (a nested X server), one that runs another instance of Xmonad and one that runs Gnome. I could switch between the users's desktops by appropriate key bindings in the bottom Xmonad instance. The first Xmonad instance would run as a separate user, or maybe the root user.

[...]

...

Do you think this is a feasible setup? Is Xmonad lightweight enough for this configuration? Can the key bindings in the two Xmonad instances be coordinated easily (can I somehow create a "clean" configuration in the root Xmonad, removing all defaults and just add a few global key bindings)?

This should work fairly well, I would think. The only problem I can think of is that the configuration for xmonad isn't configurable, so you would need to write one configuration that decided whether or not it was the master and set things up differently in that case, which might be a little bit messy.

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