Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Whenever I try to switch from the nouveau driver to any nVidia driver (304, 310 or nvidia-current) and reboot my machine after selecting a driver Ubuntu boots with the following error:

[2.4556] kvm: disabled by bios
[2.4556] kvm: disabled by bios
[2.4556] kvm: disabled by bios

The numbers in front of the text are always something in the form of

Is there anyone else experiencing problems? My graphics card is the nVidia GTX550 Ti

share|improve this question
Are you sure the erros don't appear with the Nouveau driver? – André Stannek Nov 14 '12 at 15:12
this number is count of process . and i know only it :) – user84277 Nov 14 '12 at 15:23
@stonedsquirrel I'm positive. If I use the nouveau driver everything works like a charm, except for games that is. – Kevin Nov 14 '12 at 16:08

I got rid of these errors by enabling CPU virtualizaton in the BIOS.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.