Ok, just installed Ubuntu 12.10 on an ASUS Zenbook UX32A (integrated graphics).
On boot, screen goes black, and doesn't come back on. However, the computer boots successfully and I hear the login sound.
I can then log in successfully. If I now connect an external monitor the HDMI port, that monitor comes on and displays the desktop as though in dual-screen mode. If I go into the display settings, turn the internal monitor off, apply, then turn it back on, it starts working with proper dual-screening. If I pull out the HDMI cable, it still reverts back to single screen mode, with the internal monitor still on. I can suspend and resume, and it still works. However if I reboot, it stops working again.
How can I make the configuration persist between boots?
Recently a kernel update seems to have fixed this problem for me, but if you are still experiencing it, the best tip I found was to put the computer to sleep (e.g. using Fn+F1) and turn it back on, and your built-in display should then be working fine.
Basically I think there was a problem with the kernel on this particular video device that on boot would just send the video it to an external adapter, even if there wasn't anything connected to it (completely ignoring the built-in display).
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