RandR extension missing error

[Andy Ritger]

Hi Hal, below:

On Sun, 3 Jun 2007, Hal V. Engel wrote:

> On Sunday 03 June 2007 13:56, Andy Ritger wrote:
>> On Sun, 3 Jun 2007, Alberto Milone wrote:
>>> Hal V. Engel wrote:
>>>> I have been trying to get randr working on my machine for some time
>>>> without success.  I have xorg 7.2, xorg-server 1.3 (I have also tried
>>>> 1.2) libXrandr 1.2 (I have also tried 1.1) and xrandr 1.2.  I have an
>>>> nvidia graphics card and I am running version 1.0.9755 of the propritory
>>>> driver.  I have
>>>>
>>>> Option "RandRRotation" "true"
>>>>
>>>> in the Device sections of xorg.conf.
>>>>
>>>> When I run xrandr I get the following:
>>>>
>>>> Xlib:  extension "RANDR" missing on display ":0.0".
>>>> RandR extension missing
>>>>
>>>> Looking in the Xorg.0.log I do not find any indication that there was
>>>> any issues with randr.  Anyone have any ideas about what may be
>>>> happening and how to fix this?
>>>
>>> As far as I know Nvidia's proprietary driver doesn't support Randr 1.2
>>> yet.
>>
>> That's correct -- the NVIDIA driver doesn't support RandR 1.2, yet
>> (hopefully soon...).  However, the NVIDIA driver should interact properly
>> with the RandR 1.1 compatibility layer in place in the X server, and the
>> display configuration page in nvidia-settings should provide comparable
>> functionality to RandR 1.2.
>>
>> I hope that helps,
>> - Andy Ritger
>
> nvidia-settings has a number of problems.  The main one of concern here is
> that when I tried to change the screen resolution it complained about randr
> not being available.  It appears that it does not have this functionality
> independent of randr.

Right, nvidia-settings uses the NV-CONTROL X extension to configure
MetaModes, and then uses RandR (1.1) to switch between the MetaModes.

If you're interested, you can find out more about that in the "Dynamic
TwinView" section of this page:

     http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9755/README/appendix-g.html

But, yes, there seems to be something more fundamentally wrong with your
installation since no RandR extension is available at all.