HDhomerun tuner lock collision

[JoeBob]

I am testing NextPVR. Very nice web interface. I have 2 DVR instances on
my local network (NextPVR and HDHomerun). To exist peacefully, I have
subnetted 4 hdhomerun tuners off the raspberry pi running NextPVR. The
hdhomerun record engine has no visibilty to this subnet. The NextPVR
instance can see 8 hdhomerun tuners (4 on subnet 4 on local net).
Fortunately, NextPVR allows me to disable the 4 tuners on the local
network, thank you developers.

NextPVR going from idle to one tuner in use, always selects tuner 1. This
leaves 3 tuners idle. With NextPVR idle, I fire up smplayer and connect
to NextPVR's subnetted tuner 1. Using Kodi, I ask NextPVR to stream a
channel. AFter a pause (20 seconds), Kodi says there has been a failure
and suggests I read the log. I grabbed a copy of the kodi.log and a copy of
nrecord.log. kodi.log gave scant insight. However, nrecord.log had several
instances (13) of '[ERROR][17] 804 Tuner In Use'.  I was suprised to see
NextPVR give up without trying one of the 3 idle tuners. Am I missing
something?
As my membership will attest, I am new to this forum, perhaps in need of
some guidance. Not sure about attaching log file. I have it if it would
help.

NextPVR on raspberry pi is 'Version: 6.1.1.221106'. Raspberry pi is
RPI4b (4GB) running 'bullseye 32 bit'. I get the EPG for NextPVR via
my HDHomerun DVR subscription 3 times a day.

[mvallevand]

There is a regression in v6 NextPVR and it doesn't try all tuners, it loops on the first non allocated tuner. I don't understand why it picks tuner1 though, for recordings it should start at tuner0 and for live TV it should be tuner3 unless you have reversed the priority in config.xml

Martin

[JoeBob]

Thank you for your quick reply. I found config.xml, but I did not know what to look for. To my knowledge I have not tweaked config.xml. However, in kodi, I have set live TV method to 'Timeshift', This is an essential part of testing: How many streams can NextPVR:RPI combo play with 2 minute timeshift?

[mvallevand]

Timeshift won't impact which tuner is selected.

Your testing will tell you how many clients you can have, timeshift is not specifically i/o intensive. I'd use a larger buffer two minute pause isn't much.

Martin