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**Snowhog** · Sep 04, 2011, 03:45 PM

Re: Installing Nvidia graphics card in kubuntu 11.04

K Menu > System > Additional Drivers. If the proprietary driver is available, it will be listed. Select it and install. That should be all you need to do.

**itbala** · Sep 05, 2011, 01:51 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

Thank you for helping me on this...

I have enabled the graphics driver as instructed .. however when i tried to change the resolution via nvidia-settings manager and save the chages by clicking save to x-configuration option .. i got the below error...

Unable to open X config file '/etc/X11/xorg.conf' for writing.

On checking further i found that the file was owned by root user... the nvidia-settings manager never prompted for authorization while clicking on save to x-configuration file option...

Also i'm not able to invoke nividia-settings manager as sudo user from konsole...

home@home-localdomain:~$ sudo nvidia-xconfig

Using X configuration file: "/etc/X11/xorg.conf".
Backed up file '/etc/X11/xorg.conf' as '/etc/X11/xorg.conf.backup'
New X configuration file written to '/etc/X11/xorg.conf'

Please advise me on this... Thanks

**dibl** · Sep 05, 2011, 06:45 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

Alt-F2 "kdesudo nvidia-settings" with no quote marks

Leave the refresh rate set to "Auto".

**itbala** · Sep 06, 2011, 04:47 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

Thank you for helping me on this...

I'm getting the same error again even followed your instructions ...

Unable to open X config file '/etc/X11/xorg.conf' for writing.

Please advise me like if i need to change the file permission xorg.conf to fix this issue ....Also please confirm if there are any impact in changing the file permission of the xorg.conf file...

**dibl** · Sep 06, 2011, 07:43 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

The file /etc/X11/xorg.conf is a system file, so it has root ownership. When you tried to run nvidia-settings as a user, it is expected that it will not be able to write changes to /etc/X11/xorg.conf, because a user cannot overwrite a file owned by root.

When you use "kdesudo nvidia-settings", and give the root password, then you are running nvidia-settings as root, and it is expected that you will be able to save changes to /etc/X11/xorg.conf.

So, something is wrong with the way you are running nvidia-settings, or possibly you don't have an xorg.conf file. When you press Alt-F2, do you get the krunner window at the top of your screen? When you enter "kdesudo nvidia-settings", does it pop up a window asking for the root password? If you use Dolphin and look in the directory /etc/X11, do you see a file named xorg.conf?

**itbala** · Sep 07, 2011, 08:20 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

I'm able to see the file under /etc/X11...

home@myworld:~$ ls -ltr /etc/X11/xorg.conf
-rw-r--r-- 1 root root 83 2011-09-05 18:05 /etc/X11/xorg.conf

Also when i enter kdesudo nvidia-settings in krunner .. it's prompting for Administrative password .. and opens the nvidia-settings manager window after entering the password ...

But when i try to save the x-configuration file .. i'm getting the same error.

**dibl** · Sep 07, 2011, 08:33 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

Open a konsole terminal and backup the existing xorg.conf file:

Code:

sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf_bak6sep11

Then issue this:

Code:

sudo nvidia-xconfig

which should write a new xorg.conf file for you. Then try again Alt-F2 "kdesudo nvidia-settings" and change your resolution, and save it.

**itbala** · Sep 07, 2011, 09:05 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

I have tried your instructions but would not able to get rid of the issue ....

home@myworld:~$ sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf_bak6sep11_1
home@myworld:~$ sudo nvidia-xconfig

WARNING: Unable to locate/open X configuration file.

sh: pkg-config: not found
New X configuration file written to '/etc/X11/xorg.conf'

home@myworld:~$ ls -ltr /etc/X11/xorg.conf
-rw-r--r-- 1 root root 1339 2011-09-07 20:18 /etc/X11/xorg.conf
home@myworld:~$ sudo vi /etc/X11/xorg.conf

After this when tried Alt-F2 "kdesudo nvidia-settings" and changed my resolution, and clicked save...it results in same error...

However i'm able to do vi on xorg.conf file as sudo vi /etc/X11/xorg.conf ...

**dibl** · Sep 07, 2011, 09:28 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

Hmmmmmm.

Let's do an experiment, designed to check "kdesudo". Alt-F2 "kdesudo kate", and give the password. In your new kate file, put in a few characters -- doesn't matter what. Now "File > Save" and save it in /etc/X11. Give it any non-significant name, like "123.txt". Does it save?

**itbala** · Sep 07, 2011, 09:54 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

Yes i'm able to save a txt file in /etc/X11 location via kdesudo kate app...and able to update the file too...

**dibl** · Sep 07, 2011, 11:38 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

OK, then, it seems there's some problem with the nvidia-settings package. I don't ever recall hearing of this kind of problem with it, so all I can suggest (with not a lot of confidence) is to remove it and reinstall it.

Code:

sudo apt-get purge nvidia-settings

Code:

sudo apt-get update && sudo apt-get install nvidia-settings

And then try again with kdesudo. I'll cross my fingers ....

**itbala** · Sep 08, 2011, 05:30 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

I'm getting the same error this time too ...

**itbala** · Sep 08, 2011, 05:41 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

I even tried un-installing and re-installation of nvivdia driver ... but still i get the same error

**itbala** · Sep 08, 2011, 05:52 AM

Re: Installing Nvidia graphics card in kubuntu 11.04

This time i have tried to invoke nvidia-settings manager via konsole and when i tried to save the file ... the nividia-settings manager indicates as "Unable to open X config file '/etc/X11/xorg.conf' for writing."

And i got the below output in the konsole window...

home@myworld:~$ kdesudo nvidia-settings
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QFileSystemWatcher: failed to add paths: /home/home/.config/ibus/bus
sh: pkg-config: not found
sh: pkg-config: not found
Traceback (most recent call last):
File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 20, in <module>
import gtk, gobject, sys, dbus, logging, os, re
ImportError: No module named gtk

ERROR: Unable to open X config file '/etc/X11/xorg.conf' for writing.

VALIDATION ERROR: Data incomplete in file /etc/X11/xorg.conf.
Device section "Default Device" must have a Driver line.

VALIDATION ERROR: Data incomplete in file /etc/X11/xorg.conf.
Device section "Default Device" must have a Driver line.

Can you please help me with this...Thanks

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Installing Nvidia graphics card in kubuntu 11.04

Installing Nvidia graphics card in kubuntu 11.04

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