Public bug reported:
Binary package hint: acpi-support
I have a Lenovo 3000 N100 (model 0768AQ1). The system seems to hibernate fine,
but I have noticed that when the system resumes after hibernation, the CPU
cooling fan no longer works, and the CPU temperature keeps on rising. This can
be quite serious, as the CPU may easily overheat. I have found a way to reset
normal operation of the fan though, by disconnecting the AC power. The fan
immediately kicks in when I do that, and then I can reconnect the AC power, and
normal fan operation continues thereafter. The other thing I've tried is to
unload the 'fan' and 'thermal' modules and then reload them, but that seems to
have no effect.
I am attaching a log from dmesg, after I have hibernated and resumed the system
(I probably had also suspended and resumed before hibernating, but the fan
problem is just related to hibernate).
If there is any information I can provide to help debug the problem, please let
me know. I don't know how many laptop models face this issue, but it really
needs to be fixed.
** Affects: acpi-support (Ubuntu)
Importance: Undecided
Status: New
** Tags: acpi fan thermal
--
Notebook CPU fan stays off after resuming from hibernate
https://bugs.launchpad.net/bugs/138065
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
