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I have this hp pavilion 5008tx laptop:

  • Core i5 (2nd Generation) 2450M
  • 6 GB RAM DDR3
  • Mobile Intel HM77 Express
  • NVIDIA GeForce 630M 2 GB DDR3


I'd just installed 12.04lts 64-bit (kernel 3.2.0-23-generic).After updating using


sudo apt-get update && sudo apt-get upgrade

After reboot I got a screen resolution of 640x480. I ran nvidia-settings and it said


You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server.

sudo apt-get purge nvidia-current

and after it edited grub file using vim::

sudo gedit /etc/default/grub

and replace:: GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="nomodeset"

update grub:: sudo update -grub

And then screen resolution set to 4:3 800x600

I downloaded nvidia driver from here

installed it command::

sudo service lightdm stop

sudo sh NVIDIA-Linux-x86_64-304.51.run

sudo service lightdm start

sudo reboot

After this still screen resolution is 800x600 I ran nvidia-settings and it said:

You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server.

And i cannot change my screen resolution.

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Welcome to AskUbuntu. Have you try this ? –  penreturns Oct 7 '12 at 17:25
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2 Answers 2

just delete the "xorg.conf" and you should be back to original res

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As it stands, this is not sufficient to answer the question. If you could tell the OP how to do this, it would be much more useful. It would be even better if you also explain why this works. –  RolandiXor Oct 24 '12 at 18:48
2  
And it is dangerous, you should always back up a file before deleting it. –  Mateo Oct 24 '12 at 19:28
2  
Renaming it is better. –  hexafraction Oct 24 '12 at 19:28
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Uninstall all nvidia files except nvidia-common with synaptic. Reboot and all should be well.

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kk means just simply load ubuntu nvidia default driver –  Gaurav Oct 10 '12 at 15:35
    
but still my resolution lock at 800x600 –  Gaurav Oct 10 '12 at 16:03
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