May be, may be not. Before the introduction of xsplash (around Karmic alpha 3), everything was almost working perfectly : gdm showed up on the external screen. The only problem remaining was that gdm also showed up on the laptop panel even with the lid closed. See this bug report and my comments : https://bugs.launchpad.net/ubuntu/+bug/272669
May be the flaw lies in the intel driver (enabling clone mode by default is not a good choice IMHO).
Daniel,
May be, may be not. Before the introduction of xsplash (around Karmic alpha 3), everything was almost working perfectly : gdm showed up on the external screen. The only problem remaining was that gdm also showed up on the laptop panel even with the lid closed. See this bug report and my comments : https:/ /bugs.launchpad .net/ubuntu/ +bug/272669
May be the flaw lies in the intel driver (enabling clone mode by default is not a good choice IMHO).