Hello, everyone. Could you give me some advices on NVIDIA driver. I am running Ubuntu 11.10 on my DELL INSPIRON N5110. Should I install NVIDIA GeForce GT 525M driver ? If I instlled the driver could I reboot system successfully? If you have successfully installed it , please let me know .Thanks so much.

I just searched the web, and what I found says that DELL INSPIRON N5110 has NVIDIA GeForce GT 525M card. Why are you afraid to install it? I have Ubuntu, and Nvidia GeForce card(not GT 525M), installed it several years ago, rebooted it zillion times and it still works well

Oh! If it bothers you, because it is additionally prompting you for installing proprietary software, don't be alarmed. It's normal. Can't think of any other reason to ask that question :-/

well, thanks so much

running a GTX 560 here and no issues w/ the drivers

Last night , I downloaded the NVIDIA GeForce 525M dirver from NVIDIA.com and then installed it but failed. I cannot boot my UBUNTU 11.10 successfully after installed it. I followed this guide http://www.overclock.net/a/install-n...tu-11-04-11-10
. But when I did " sh NVIDIA-Linux-x86-290.10.run " and then it prompted something like cannot choose the runlevel or something else.

I think you have to be at console with xorg not running for the driver form nvidia to install correctly.

You should have just used the "Easy and Recommended way to install Nvidia Drivers in Ubuntu" in that link that you posted: It is easy. It uses the nvidia driver from the Ubuntu repositories. That is why it is recommended.
Did you try that option at all? If not then:
1. Remove the nvidia driver from nvidia.com that you installed:
where * is the specific driver that you installed. See this: http://us.download.nvidia.com/XFree8...alldriver.html
2. Then reboot and install the nvidia driver as per the "easy and recommended way".
If you can not boot to the desktop then boot to recovery mode and run those commands.

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The N5110 with the GT 525M is another 'optimus' laptop. So you cant just install the nVidia drivers, if you do yuo will just break 'X'.

You will need to use bumblebee, or one of the other projects to get 'optimus' setups to work with linux (as nVidia doesnt support optimus with linux).

Thanks cascade9. But I don't know bumblebee at all. Where to find that kind of driver tarball or .deb ??

See this for info about bumblebee: http://www.phoronix.com/scan.php?pag...tem&px=MTA0NTY

You can add bumblebee to your Ubuntu 11.10 system by adding one of the ppa repositories that offer it to your software sources. A quick search has found several different ways of adding bumblebee depending on which ppa repo you use. From what I have read it seems that the bumblebee-stable repo may be the best.
See this tutorial: http://www.ivegotavirus.com/blog/201...eed-on-ubuntu/
Also from the Launchpad ppa site about bumblenee-stable: https://launchpad.net/~bumblebee/+archive/stable
Hope this helps.
I generally avoid using those ppa repos and stay with the official Ubuntu sources. However, in your case this may be the only way of getting your nvidia graphics with optimus working properly.

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I will have a try. Thanks so much