iBook limitations
I´ve seen a lot of questions about mirror or dual screen mode of iBooks.
Although Apple specifications are correct for OS 9 an OS X, is a well known characteristic of iBook that under Linux (in any of the various flavours) an iBook not only can run in dual screen mode, it can take advantage of the superb ATI card and achieve screen resolutions far away than 1024×768 pixels Apple claims as maximum capable.
This is ademostration that Apple cut capabilities of the home line (iBook) in favour of the professional line (PowerBook), and is not a hardware limitation or a design problem.
If only a clever programmer would write an ATI new driver for iBooks, all these hungry-for-resolution users could take advantage of their lovely (after all) machines [ apple-forum ]
This is weird, but my new iBook went into sleep mode after installing the OSX 10.2 devel tools, and when I woke it up, it was in dual screen mode!?
This went away when I logged out – and I was unable to get it back…
This indicates that even the osx drivers on the iBook allow dualscreen, but that the functionality to activate it is hidden/disabled…
Strange.