Victor's solution works well and it is straightforward. I'm using it on a Dell D430 and the whining noise disappears. Unfortunately the CPU heating increases too much and causes too active (noisy) fans. For standard use (editing txt) CPU temperature is around 65 Celsius degrees when max_cstate is C2, and only 59 (i.e., no fans) when max_cstate is C8. So, at least on D430, you have to trade-off fans noise and cpu noise.
-- Unable to set max_cstate on hardy kernel https://bugs.launchpad.net/bugs/206864 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs