Error when use nvidia-prime ?

2

21st

Guest
My laptop have nvidia card and intel card. And I have Ubuntu 14.04 and Windows 8.1 in parallel. But nvidia driver for linux not support optimus, so I used nvidia-prime.

But when I disable nvidia card by nvidia-prime, after that I want to enable it but I can't. It did not work.
It seem the computer not detect nvidia card (previously it had detected). In Additional Driver not show any info about nvidia card (previously it had).

I switch to Windows 8.1 and i found that Windows 8.1 also not detected nvidia card. Finally, I must reload bios and everything is back to normal.

Nvidia-prime not working correctly in Ubuntu 14.04 ?

P/s: My English is not good ;)
 


2

21st

Guest
Thank for help :)

I also want to know, How does nvidia-prime work ?
 

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