[ntp:questions] NTP, GPSD & PPS

David Taylor david-taylor at blueyonder.co.uk.invalid
Wed Dec 10 11:50:22 UTC 2014

On 10/12/2014 10:24, Miroslav Lichvar wrote:
> If it's a recent version of gpsd which uses kernel timestamps (check
> for KPPS messages in "gpsd -D 4" output), you may already have a "true
> PPS sync". The PPS and NMEA timestamps are paired in gpsd, so it's not
> necessary to add the NMEA source to ntpd. To avoid problems with the
> falseticker, you can remove the source from ntpd configuration or use
> the noselect option to never use it and only monitor it.

That sound helpful!

With -D 4 I get a list of devices ending with "PPS", but presumably that 
is not the same as "KPPS"?  I did try an apt-get first to update gpsd 
but it seems I have the most recent available.  It seems I have 3.6.  Do 
I need a development version or...?

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