how can i solve this? NV-CONTROL extension not found on this Display.

[fabiom]

hi,

Every time i try to run nvidia-settings, i get the following errors:

ERROR: NV-CONTROL extension not found on this Display.


ERROR: Unable to determine number of NVIDIA GPUs on ':0.0'.


ERROR: Unable to determine number of NVIDIA Frame Lock Devices on ':0.0'.

So I can't adjust brightness, contrast, etc on nvidia-settings. Any help?

I have a 6600gt and I'm running Ubuntu 5.1 and the 8756 nvidia driver.

thanks

[netllama]

I suspect that you're not using the nvidia X driver. Please generate and post an nvidia-bug-report.log

Thanks,
Lonni

[fabiom]

thanks. i looked at the log file, and i found this:
(EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

is this the problem? if so, how can i solve it?

and the log file is to big to post or attach here.

[netllama]

You can zip the log to post it here. You might try (re)installing the driver first to see if that helps at all.

Thanks,
Lonni

[DapperChap]

Hi,
I'm seeing the similar issues as fablom.
I, too, have a 6600GT card. I have a AMD Athlon 64 X2 4400+ and I am running a 32bit (K7) SMP kernel.

I had no issues when using Breezy (5.10)

I recently upgraded my Ubuntu installation to Dapper (6.06 I believe) in order to check out the compiz extensions (wonderful wobbly windows, etc.). That is when the issues arose.

1. Quake 4 would fail to load (seg. fault) just after a listing of the GL capabilities,

...using GL_ARB_texture_cube_map
...using GL_ARB_texture_env_dot3
...using GL_ARB_texture_env_add
...using GL_ARB_texture_non_power_of_two
...using GL_NV_blend_square
X..GL_ARB_texture_compression not found
signal caught: Segmentation fault
si_code 1
Trying to exit gracefully..

2. I noticed that I could open the nvidia-settings dialog. The attached screenshot is what I see. There is also (for completeness) text output on the console.

$ nvidia-settings

ERROR: NV-CONTROL extension not found on this Display.


ERROR: Unable to determine number of NVIDIA GPUs on ':0.0'.


ERROR: Unable to determine number of NVIDIA Frame Lock Devices on ':0.0'.

In my case, I have no errors in the xorg log file. However, the log file being written to is called Xorg.93.log which seems a little odd as I thought that the number on the log file would refer to the display (When I open a shell window, DISPLAY is ':0.0').

Perhaps it is a conflict between what is needed for compiz to work and the other GL stuff?

I'm going try reenabling the nvidia-settings package (which will remove the nvidia-glx package) to see what effect it has.

Cheers,

[netllama]

The most likely reason for getting this error is not using the nvidia X driver. As I've already requested earlier, I'll need to see a bug report to diagnose this further.

Thanks,
Lonni

[DapperChap]

Ok,

I did the following:
1. Installed nvidia-settings - which removed nvidia-glx (sudo apt-get install nvidia-settings).
2. Shutdown the X server (ctrl-alt-backspace).
3. gdm tried to restart the xserver and failed - nvidia module not found - doh!
4. Reinstlalled the nvidia-glx driver (sudo apt-get install nvidia-glx).
5. Logged in to the terminal
6. Stopped gdm (sudo /etc/init.d/gdm stop).
7. Started the X server by hand (startx)

And, lo, I can now run nvidia-settings (Quake 4 too!).

As a test I shut down the X server again and restarted gdm (sudo /etc/init.d/gdm start).
Back to the problems with nvidia-settings and quake 4 - maybe it is to do with that display :93.0 - I don't know.

So, I expect that it is the change that were made to get compiz working in gnome that is hurting nvidia-settings.

I'll look into it a bit more a little later. I'd like to have wobbly windows and working nvidia-settings at the same time.

Anyone have any ideas how to approach this?

Cheers,

[DapperChap]

Hi Lonni,

I've attached the log generated by 'sudo nvidia-bug-report.sh'
Sorry for not putting this up earlier.

Cheers,

[zlibre]

HI !!!,

I have the same problem, i'm not a help seeying this, but i'm shure thats is a very important bug in the installation of the nvidia driver in Ubuntu dapper (nvidia-glx).

I would like resolve this, help!!

thanxs!!!

PD: Sorry for my english!!

zlibre@gmail.com

[zander]

@DapperChap: `nvidia-settings` will not be able to communicate with the NVIDIA X driver if you're using XGL/`compiz`.

@zlibre: please generate and attach an nvidia-bug-report.log file (see http://www.nvnews.net/vbulletin/showthread.php?t=46678).

[zlibre]

It's true... thanxs!!

now works!!! ashhhh i'm an asshole.

thanxs!!

It's a great forum.

thanxs!!!

[LonnieTC]

greetings all,

I am new to this forum, but came across this posting while looking to see how to resolve a problem that I have with my nVidia GeForce 5200 card on a Linux Fedora Core 5 machine running Xgl & Compiz.

It appears that if I am running the standard x11 server then I can change things like the brightness, etc... through the nv-settings.

but, if I switch into Xgl & Compiz server then I can no longer change the settings even though the drivers appear to be working but things are very dark and I need to adjust the brightness.

Is there anything that can be done to fix this?

I have the latest nvidia drivers as well.

Cheers,
Lonnie