Linux, Laptops and Dual Displays
I need to update some information related to a post that I made last week about multiple displays with Linux. In a nutshell, I have a laptop and a port replicator with a display connected to it. That gives rise to three basic "states" for display - using the laptop display only (not connected to the port replicator); using the external display only (connected to the port replicator with the laptop lid shut); using both displays simultaneously.
With Windows XP Professional and Vista, the operating system is aware of each of these states, and I can select a resolution for each of them which will then automatically be used as necessary. I can see the result of this by booting the laptop standalone, and getting 1280x800 resolution, then booting with it on the port replicator, and as I open and close the laptop lid, it switches back and forth between 1280x1024 and 1024x768. This is exactly what I would like Linux to do. What I have actually found is:
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