AMD Athlon -- clock run 2x faster under linux

Mitch Anderson mitch at metauser.net
Tue Aug 30 13:10:42 MDT 2005


justin gedge wrote:

> Recently bought an hp laptop [hp pavilion zv6170us].  It's a fairly
> nice machine with an AMD Athlon64 in it.
>
> Still not done wrestling the ATI drivers-- so I get to live with a
> stretched out XGA until I get the drivers for video figured out-- but
> I can handle that just fine.
>
> The real issue that's burning me up right now is the system clock is
> running faster than it should -- like 2x faster.
>
> SuSE tech support recommended passing the noapci to the kernel at
> bootup.  This fixed the clock bus disabled networking.
>
> The next bit of advice was to pass the notsc option to the kernel--
> this didn't appear to fix anything.
>
> I've looked at the /etc/adjtime file-- and this provides a mechanism
> for clock skew-- but it's for stuff like a 5 sec drift per day or
> something small like that-- it doesn't deal with 2x differences in the
> system clock.  I could try  just ntp -- but again-- this is for small
> changes when your system clock works [but happens to be off by less
> than 10 minutes].
>
> Anyone ever see anything like this before?
>
>
> oh-- the typical info-- running SuSE93 the X64 version for the athlon
> etc.....
>
in your grub.conf (or before bootup) try adding the option
"no_timer_check" on the kernel line... worked for my little brothers
X86_64 box.

Mitch





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