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

Felipe Alfaro Solana (felipe_alfaro@linuxmail.org)
18 Jun 2003 20:13:09 +0200


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.

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