Comment 23 for bug 1228109

I believe i have the same issues as you guys.

I'm late but i have some information about this issue.
At work i have different workstation : lenovo m90P, lenovo m91p and lenovo m93p.

The freeze occure for me only on the m91p.

Now about the ubuntu version : The m91p work perfectly on ubuntu 11.10
The freeze append only after we migrate on ubuntu 12.04.

I tried a lot thing (latest kernel, latest vieo drivers etc..), the only thing which work was the retro upgrade of the kernel from 3.2 to 3.0

hope that help