Hi, when i originally built my mythtv box a few years ago I would notice that it'd get say 20 or 30 seconds off every week so i just did daily ntpdate in the crontab and it fixedi t.

Now, after this latest reinstall, it will get off a few hundred seconds every day.

What would the cause of this be?

Should I try replacing the system battery?

Thanks
Jon

Can you provide hardware details?

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Retired KM user (R4 - R6.04); friend to LH users.

John you're light on details here. What version of KnoppMyth did you reinstall? Anything modern should be setting up up a full time ntpd daemon pointed at pool.ntp.org to keep your clock synced. Check with ps to see if it's running, and take a look at the /etc/ntp.conf file to see what your settings are. Purging your drift file and forcing it to regenerate may help, or you may have other problems.

The hardware clock is only used at boot time, are you running fultime, or using an auto/manual shutdown to save power between recordings and watching?

Yea, it's running all the time. The hardware is an athlon xp 2700+ with 512 ddr ram on a msi board with a pvr250 and a regular hauppague software card (forget the model) and a wd 160 gb ide drive. For some reason when both tuners are recording, it will freeze about 10 min in.

I am running a newer version, but I disabled the internal ntp server so I could just put ntpdate in the crontab which had worked for me in the past.

Make sure you have Spread Spectrum turned off in your Bios. There is a bug/problem with some nforce 2 boards that causes the time to go way off when spread spectrum is turned on...

I also had to add pci=noacpi to lilo.conf. Apparently, this is a known bug with some nforce boards that will be fixed with the 2.6.15 kernel.

Running ntpd full time should be able to compensate. I only have dial-up, so that wasn't an option for me.

Allen

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ASUS AT3N7A-I (Atom 330)
TBS 8922 PCI (DVB-S2)