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Possible Duplicate:
How well do laptops with Nvidia Optimus work?

My external monitor works fine when connected to my laptop's dock using a VGA cable. However, with a DVI cable, I can't seem to pick it up. Googling led me to install the NVIDIA additional drivers. After installation, I rebooted as instructed, and then tried to run NVIDIA X-server settings. I got a message telling me:

"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."

However, after running `sudo nvidia-xconfig' and then "sudo service lightdm restart", my GUI fails to reappear. After removing the xorg.conf file created by nvidia-xconfig, I can get my laptop display back with "sudo service lightdm start", but I can't seem to actually get the NVIDIA drivers to work with X.

Community
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Steve Kroon
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1 Answers1

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I have the same laptop and problem here. I had it all working fine on 11.04. My upgrade to 11.10 gave me a lot of problems, I could not use my external monitor. So I enabled the Optimus setting in the bios and thus switched back to the Intel card only. My external monitor worked fine now using intel BUT no 3d rendering/compiz anymore which sucks.

I tried switching back to using the nvidia driver again today (by disabling optimus in the bios) and installing nvidia drivers. Unfortunately it did not work out and I switched back intel..Though I might have broken my installation a bit by my previous fixing attempts.. I do not want to spend much time on it again and continue working

I will try again when 12.04 comes out. They are working on improving the graphics stack.

Stephan
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