Re: [Bug 827] New: System time runs too fast.

[Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>]

On Wed, 2003-06-18 at 16:42, Martin J. Bligh wrote:
>            Summary: System time runs too fast.
>     Kernel Version: 2.5.72
>             Status: NEW
>           Severity: normal
>              Owner: bugme-janitors@lists.osdl.org
>          Submitter: ialiashkevich@epo.org
> 
> 
> Distribution:
> 
> Hardware Environment:
> Notebook Maxdata Eco 3000X
> Processor: P4 2Gz
> Chipset: SIS650
> 
> Software Environment:
> RedHat 8.0 + kernel 2.5.70
> RedHat 9.0 + kernel 2.5.72
> kernels were built by gcc 3.2.3 using default .config from arch/i386
> 
> Problem Description:
> System time runs at least twice faster than necessary.
> As a result have problems with keyboard timings:
>    very short delay before repeat mode and very fast repeat rate
> problems with mouse:
>    very fast double-click speed
>    
> Steps to reproduce:
>   buld, install kernel and restart :)

BTW, are you using CPU frequency scaling? While playing with my P4's CPU
frequency scaling, lowering the CPU frequency below a threshold
frequency value (below 1.4GHz approx.), the system starts acting
erratically: the keyboard generates event at twice or three times the
normal speed iiitttsss nnneeeaaarrrlllyyy iiimmmpppooosssiiibbbllleee to
type anything. The system clock starts skewing at a really fast pace and
the mouse is unusable. The only solution is returning the CPU frequency
to a higher value.