Configure monitor rotation with nVidia.

[Dave Woyciesjes]

Dave Woyciesjes wrote:
> Dave Woyciesjes wrote:
>> Ubuntu 9.10 nVidia GeForce 7600 GT.
>> 2 Dell 1907FPv monitors
>> Using v185 of the nVidia driver, that came through the Hardware driver 
>> applet.
>> I've got it set for TwinView, using nVidia-settings control panel.
>> DFP-1 - monitor on left
>> DFP-0 - monitor on right
>> 	I wanted to try and rotate DFP-0, and leave DFP-1 at landscape. 
>> nVidia-settings didn't seem to have anything about rotation, so I loaded 
>> up the grandr (Multiple Screens) GUI. That only sees one 2560x1024 
>> monitor, and the rotation option is greyed out.
>> 	Searching around got me to here:
>> http://ubuntuforums.org/archive/index.php/t-1335433.html
>> Looking at the post from Nick Payne (11/29/2009), I added:
>>
>> Option "RandRRotation" "on"
>> Option "Rotate" "CCW"
>> ...to the one & only Monitor section in my xorg.conf file. Which worked, 
>> just not the way I anticipated. Instead of going to the side to get to 
>> the other monitor, I had to go to the top of DFP-0, when was "connected" 
>> to the bottom of DFP-1. Which was correct when the monitors were 
>> physically oriented landscape.
>> 	Workaround is to go into nvidia-settings, and change the layout to 
>> DFP-1 on top, and DFP-0 on bottom. Works, but not logically correct.
>>
>> 	Now for the questions:
>> 	Would changing from TwinView to Separate X screens in nvidia-settings 
>> allow me to rotate one, and not the other; and would the layout preview 
>> in nvidia-settings be logically correct?
>> 	I'm guessing using separate X screens would give me 2 monitor sections 
>> in xorg.conf, so I can rotate individually. Right?
>> 	I saw a gripe about using Separate X screens. Would I still be able to 
>> drag windows back & forth between monitors?
>> 	I'm assuming Compiz would still work. The cube, painting fire on screen 
>> and other toys are good for impressing folks here..
>> 	Currently, with TwinView, I can't maximize or resize FireFox & other 
>> app windows to use both screens. Would separate X screens fix this 
>> annoyance?
>>
>> 	I would just try switching, but since this is my production box at 
>> work, I need to minimize down-time....
>>
> 
> 	Well, spent lunchtime fiddling. I ended up going into nvidia-settings, 
> switching it to Seperate X Screens. Then I tweaked one   monitor section 
> in xorg.conf (DFP-1, the right monitor now)
> Option "RandRRotation" "on"
> Option "Rotate" "CW"
> ...and enabled Xinerama.
> 
> 	So now I got the displays oriented the way I wanted, DFP-0 (left) in 
> landsacpe; and DFP-1 (right) portrait.
> Course, the fun Compiz stuff is gone...
> 
> 	Any ideas if I can get the monitor layout I want with Copmiz working?
> 

	Looks like I'm talking to myself here... Ah well, no one has any tips 
for me I guess.
	Either way, I believe I've found my answer. If I want both monitors to 
have the same orientation, I can use TwinView, and get all the nice 
Compiz effects, and good performance.
	If I want one monitor to be landscape, and the other to be protrait, I 
have to use seperate X screens, Xinerama enabled. BUt I don't get 
Compiz, and there are some odd quirks, and it doesn't perform as well. 
nVidia docs specifically state that TwinView does not support rotating 
only one monitor....

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--- Dave Woyciesjes
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