cpuspeed stuck in lowest speed after hibernate ?

Aaron Konstam akonstam at sbcglobal.net
Fri Jul 14 20:39:04 UTC 2006

On Fri, 2006-07-14 at 15:38 -0400, George Avrunin wrote:
> >>>>> On Fri, 14 Jul 2006 08:44:43 +0100, "CJ" == Chris Jones <jonesc at hep.phy.cam.ac.uk> wrote:
>   CJ> Hi,
>   CJ> 
>   CJ> I have just noticed that sometimes (not everytime...) after a hibernate/resume 
>   CJ> cycle, my machine seems to be stuck in its lowest cpu speed state. It has 
>   CJ> worked fine for quite some time  (although I have only had hibernate working 
>   CJ> since FC5).
>   CJ> 
>   CJ> Has anyone else seen anything like this ? I include below extracts 
>   CJ> from /proc/. I have searched around in the logs but not really found 
>   CJ> anything, but then I'm not sure what to look for or where.
>   CJ> 
>   CJ> I thought it might be a 2.6.17 kernel issue, since I recently updated to 
>   CJ> 2.6.17-1.2145_FC5, but I see the same thing with 2.6.16-1.2133_FC5
>   CJ> 
>   CJ> cheers Chris
>   CJ> 
> I'm seeing the same thing with 2.6.17-1.2145 on a Thinkpad T40.  I
> haven't had a chance to check with earlier kernels. I haven't found
> any way to speed the cpu back up without rebooting.
>   George
How do you know it is really stuck. My machine stays at 800MHz unless I
do a compile or run glxgears. Opening a browser or OOwrite does not
change the speed.

Aaron Konstam <akonstam at sbcglobal.net>

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