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Re: Bug#354995: amd64-k8-smp kernel makes clock run fast

On Sun, Mar 05, 2006 at 06:26:52PM -0500, Andrew Burns wrote:
> I have been fighting the same problem for several months now and only
> today solved the problem.
> My machine is an emachines model T6212 and has a ATI graphics card as
> well SIS network card.  I mention this because on a number of posts in
> the net concerning this issue these two pieces of hardware (as well as
> NVIDIA graphics cards) are cited as being part of / associated with the
> problem.
> After trying a very large number of suggested changes -- most involving
> altering the boot line to the kernel with flags such as noapic nolapic
> apic apic=noirq no_timer_check etc.  I found a solution (at least for
> me).
> A post somewhere mentioned that this was not a software problem (or at
> least no a kernel problem) per se.  Rather it was a BIOS problem and
> that upgrading the system BIOS would solve the problem.
> I went to the manufacturer's web site and sure enough there was a bios
> patch available that corrected for a problem associated with NVIDIA
> graphics cards.
> I downloaded it, flashed my BIOS and amazingly enough my system has been
> keeping perfect time since.
> Hope this works for you.

That was good hint, I upgraded the BIOS on my Gigabyte board to the latest
version (the changelog did not say anything about clock problems, though)
and the clock works fine even without the disable_timer_pin_1 kernel option.
And 2.6.15-1-amd64-k8-smp boots with this, not only 2.6.12.



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