Rotation is not expected to work at the moment, I implemented it, but never got it fully working.  keep an eye on the git logs though, it'll work eventually.  regarding the max FB size, the driver was limited to 1600x1200 by default.  I've since adjusted the max sizes a bit based on vram, but they may be bigger or smaller than you want.  To change the max desktop size, add a virtual line to the screen section of your config specifying the max size you want, e.g.,

Virtual 2680 1200

Once we get ttm support, we will be able to dynamically resize the buffers.

should be working in git:
d43596e5f5d7c60f96b57bc3e743a9b40eb7109d
EXA composite accel doesn't seem to do the right thing yet though so use XAA or disable render accel.

Yes it is working!! It's not crashing...

But very slowly. Everything is redrawing very slow and badly. Using XAA accelleration. Try moving a window around, or scrolling in firefox!
Useless... sorry.

Offtopic: Having Both the DVI-0 and the LVDS connected, the LVDS still seems to be running at 5 hz instead of 50 hz!?

if you're running xserver master, this is probably due to lack of mtrr support.

(In reply to comment #4)
> if you're running xserver master, this is probably due to lack of mtrr support.
> 

Running the current of Ubuntu Gutsy. xserver 1.3 with some patches i think.
Is the xserver lacking support for mtrr, or my hardware?
Anything to do about it?

I'm sorry to reopen the bug, but in my case it does not work.
I have the package 6.7.192-1ubuntu1

My screen gets garbled  and the system does not respond to the commands anymore

Section "Device"
    Identifier  "ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]"
    Driver      "radeon"
    Busid       "PCI:1:0:0"
    Option      "XAANoOffscreenPixmaps"
    Option      "GartSize"      "64"
    Option      "AccelDFS"      "true"
    Option      "ColorTiling"   "true"
    Option      "EnablePageFlip"    "true"
EndSection

radeon does not have functional acceleration for rotation yet, so it will be slow.

(In reply to comment #6)
> I'm sorry to reopen the bug, but in my case it does not work.
> I have the package 6.7.192-1ubuntu1
> 
> My screen gets garbled  and the system does not respond to the commands anymore
> 

>     Option      "XAANoOffscreenPixmaps"
>     Option      "AccelDFS"      "true"
>     Option      "ColorTiling"   "true"
>     Option      "EnablePageFlip"    "true"

Can you try removing these options one by one and see if any of them help?

(In reply to comment #6)

This is my working config:

Section "Device"
	Identifier	"ATI Technologies, Inc. Radeon Mobility M7 LW [Radeon Mobility 7500]"
	Driver		"radeon"
	BusID		"PCI:1:0:0"
	Option		"XAANoOffscreenPixmaps" "true"
	Option    "ColorTiling"   "on"
	Option		"DynamicClocks"	"on"
	Option		"AGPMode"	"4"
	Option		"AGPFastWrite"	"yes"
        Option     "EnableDepthMoves"          "yes"
        Option     "EnablePageFlip"             "yes"
	Option          "Accel"
	Option "AccelMethod" "XAA"
	Option "RenderAccel" "false"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"ATI Technologies, Inc. Radeon Mobility M7 LW [Radeon Mobility 7500]"
	Monitor		"Standard Skærm"
	DefaultDepth	24
	SubSection "Display"
		Virtual		2680 1400
		Depth		24
		Modes		"1400x1050" "1280x1024"  "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

I tried without any options, and also in fedora 8 I have this problem.
Is there any way to get debug informations about the rotation? I tried Xorg.0.log and .xsession-errors but it does not contain anything 

(In reply to comment #10)
> I tried without any options, and also in fedora 8 I have this problem.
> Is there any way to get debug informations about the rotation? I tried
> Xorg.0.log and .xsession-errors but it does not contain anything 
> 

can you get a backtrace of the crash with GDB?
http://wiki.x.org/wiki/Development/Documentation/ServerDebugging

Now I only have 1 pc, and I'm afraid it is too difficult...

i have an 9800xt and with the 1:6.7.197-1 from debian sid I get rotation working in ubuntu gutsy. Performance is very slow yet. When will this be increased?

What me bothers is that I can't set Rotation statical in xorg.conf.

I tried with one monitor and dual-head setup and always Xorg refuses to start.

attached error and xorg.conf

Created attachment 13433 [details]
stderr message of Xorg when Option Rotate  is set

Created attachment 13434 [details]
my setup

the device name is not the one of my card so don't get clouded.

Can you attach your full xorg log?

Created attachment 13467 [details]
log with Rotate option

remove this option:
	Option "XAANoOffscreenPixmaps" "true"
or switch to exa.
and make sure you have a large enough virtual space for the rotated screen:
Virtual	2304 2304

Created attachment 13486 [details]
update of xorg.conf

I have changed my configuration like you suggested but still no change.

Created attachment 13487 [details]
log of the crash

I now use XAA again because EXA renders very slow but before I also tried EXA which crashed, too.

fixed in git: 2e4473b63d65801ae8ac5a8391de232b2201d958

xf86CrtcRotate() accesses pScrn->pScreen which is not set during ScreenInit(). This should also be fixed in the server.

Created attachment 13495 [details] [review]
possible fix for server

fixed in xserver as well.