Re: Rotation of only one screen (with TwinView)
How hard can it be to implement proper drivers? It really sucks that I have to choose between a proprietary technology which doesn't have support for my use case (one horizontal, one vertical monitor), but supports compositing (TwinView) and a deprecated technology which supports my use case, but disables compositing and makes certain applications with multiple windows completely unresponsive (Xinerama).
I guess RandR 1.2 would be the correct way of doing multi-head support these days. Support for it has been promised "in a future release" a year ago, but I'm not holding my breath.