What does your chrony.conf look like now?

I have a similar problem, (also using gpsd and Raspberry Pi with GPIO-PPS).

Am 24.02.2017 16:53, schrieb Brian Gieryk:
> Bill, PPS is being referenced as GPS now.
> 
> Miroslav, that was initial fix.
> 
> Now, NMEA offset is +198ms std dev is 7301us
> 
> GPS (PPS) is offset +23 us std dev is 19us.
> 
> Brian
> 
> Sent from my iPhone
> 
>> On Feb 24, 2017, at 08:48, Miroslav Lichvar <mlich...@redhat.com> wrote:
>>
>>> On Fri, Feb 24, 2017 at 08:44:02AM -0700, Brian Gieryk wrote:
>>> Did as suggested, and seems to be working.  NMEA is showing  +/- 2599 us 
>>> and GPS (PPS) is showing +/- 1831 us.
>>
>> 1800 microseconds is not that good for a PPS. Usually it's just a few
>> microseconds, or better. What does the "chronyc sourcestats" command
>> print?
>>
>> -- 
>> Miroslav Lichvar
>>
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