Timo's branch is a bit better in that the external display works, but not quite right. Some observations:
* booting with the external display connected shows the boot and login screens on both, and then my session comes up only on the external display
* I can use the monitor preferences panel to reconfigure them
* Fn-F7 has no effect (istr we discussed on irc that this was fixed by something else in .39)
* If I disconnect with the display already set to internal only, it's ok
* If I disconnect the laptop (either the dp cable or from the base) with the internal display turned off, it does not turn back on and (per above) I can't bring it back on with Fn-F7, nor by switching to vt1 and back
* On resume from suspend, neither panel shows anything. The internal display backlight comes on but there's no content.
I spoke a bit too soon.
Timo's branch is a bit better in that the external display works, but not quite right. Some observations:
* booting with the external display connected shows the boot and login screens on both, and then my session comes up only on the external display
* I can use the monitor preferences panel to reconfigure them
* Fn-F7 has no effect (istr we discussed on irc that this was fixed by something else in .39)
* If I disconnect with the display already set to internal only, it's ok
* If I disconnect the laptop (either the dp cable or from the base) with the internal display turned off, it does not turn back on and (per above) I can't bring it back on with Fn-F7, nor by switching to vt1 and back
* On resume from suspend, neither panel shows anything. The internal display backlight comes on but there's no content.