NextPVR does not utilize all 4 tuners

[jmooremcc]

I have performed the 4 tuner test you requested.
Tuner 1 was providing live TV to a Kodi device.
The remaining 3 tuners were available.

I activated quick recordings from the nextPVR menu on the back end server and the recordings took place with no problem.
In fact, the live TV service involving Tuner 1 was not disrupted as I initiated recordings.

So the question is, why did my tuner that was assigned to Kodi for live TV last night hijacked?

I've attached the zipped log files using the "zip my log files" button in settings.
I had to split it into two files because the original log file was larger than the maximum limit.

[mvallevand]

The error on one of your tuners has gone so the source of your original problem was fixed likely by a reboot. As I said yesterday's logs showed a bug in NextPVR when using Kodi timeshift mode that is hard to duplicate and seems to be impossible to catch in the logs.

Martin

[jmooremcc]

I finally have a log file that shows a tuner already in use for watching live TV being hijacked to make a scheduled recording. Please look at the file NRecord.log I've just uploaded. Please note that only one of the four tuners was being used by Kodi to watch live TV when the recording was suppose to start.

The fun starts at 2018-08-27 20:59:00.065 when NPVR is ready to start a scheduled recording but determines that the tuner it intended to use was already in use. It then searches for an alternative tuner and switches to that tuner(#2). Mysteriously, NPVR somehow determines that the tuner it just acquired for the recording is somehow being used for live TV (it wasn't) and switches back to the originally occupied tuner for the recording. This vacillation between the same 2 tuners happens more than 100 times before it finally settles on tuner #2 60 seconds late. Of course and as expected, the Kodi box watching live TV froze and a "Tuner No Longer Available" message appears on screen. At 2018-08-27 21:02:40.793, I manage to re-select the channel I was watching while the recording continues.

This is the problem I've been trying to document since I bought the quad tuner card. Hopefully this will be enough information for you figure out why my live TV tuner is being hijacked when a recording is scheduled. The version of NPVR I'm using is NPVRSetup_4_2_2_180623.

[johnsonx42]

I think i see a problem there, but it's hard to tell since other logs I'd like to look at are missing. Don't post all your logs, as you have been repeatedly asked to do, don't get any help. If you're expert enough to know which logs to post, then you're expert enough to diagnose the problem yourself.

[jmooremcc]

I would fix the problem myself if I had access to the source code. It's been previously denied that NPVR is not accessing all 4 tuners. The log I supplied yesterday proves that is not true. If the code used for initiating a recording was accessing all 4 tuners, it would have cycled thru all 4 tuners yesterday instead of oscillating back and forth between tuner#1 and tuner#2. As a developer, that would have been enough information for me to review the source code to determine why that happened.

[mvallevand]

I have stated on numerous occasions that there is a bug in the handling of Kodi timeshift logic that eats a tuner indicating it is still used for live tv. I have also posted that I have yet to see all the logs from Kodi and NextPVR when this occurs. Your last edited set of logs is once again useless for determining what causes the problem. Please duplicate the problem and immediately send all the logs. Duplicating the problem is a key thing for any good developer especially when the problem is sporatic.

Martin

[sub]

Do you have 'use reverse priority for live tv' ticked on the Settings->Devices screen?

On the Settings->Device screen, do all four devices have the same number of channels listed next to them? On the Settings->Channels screen, is there only one copy of the channels in question?

As Martin says, we're probably going to need to see a full set of logs. In this particular scenario we would have also needed to look at the web.log.

[johnsonx42]

I would fix the problem myself if I had access to the source code. It's been previously denied that NPVR is not accessing all 4 tuners. The log I supplied yesterday proves that is not true. If the code used for initiating a recording was accessing all 4 tuners, it would have cycled thru all 4 tuners yesterday instead of oscillating back and forth between tuner#1 and tuner#2. As a developer, that would have been enough information for me to review the source code to determine why that happened.

And yet, still no logs...

[2leftfeet]

I have the quad tuner card by Hauppauge.
The other night I was recording 3 programs that used 3 of the 4 tuners.
Knowing that a 4th tuner was available, I wanted to watch live TV using Kodi.
When I clicked on the channel, a Kodi error message appeared that stated a tuner was not available.
I checked my NextPVR computer and the status showed only 3 tuners being utilized.

I've also had the problem of watching live TV using Kodi and losing the tuner when 2 previously scheduled recordings began.

I've included the pertinent logs for your inspection.
My OS is Windows 10
My NextPVR version is 4.0.5 (171208)

In the for what it's worth department, I recently performed a reinstall of Windows 10 and reloaded all drivers for the quad tuner card as a fresh install. I also did a fresh install of NextPVR.

Any ideas why NextPVR doesn't think the 4th tuner is not available.

After reading this thread, I believe that I have encountered something similar very recently, maybe two or three times. Maybe it's related, so I am posting here. I had not noticed this prior to 4.2.2. I didn't think much of it at the time and unfortunately did not collect logs. In my case it was w/r to my 3-tuner HDHR Prime, using Kodi as my client. In my case there were 3 tuners, one was being used for LiveTV. While watching LiveTV, a scheduled recording then started. For whatever reason, NPVR selected the tuner being used for LiveTV and not one the other two unused tuners. When this happened, the channel I was watching was switched to the channel scheduled for a recording by NPVR and LiveTV continued to play, except on the different channel. All along, the two other tuners were available.

This also happened once when LiveTV was being using by one tuner, a program was being recorded on a 2nd tuner and a 2nd scheduled recording started (it should have been assigned the the remaining available tuner, but was assigned to the one used by LiveTV instead).

This doesn't always happen, only noticed it 3 times.

If this happens again, I will try to gather the logs and post.

[johnsonx42]

After reading this thread, I believe that I have encountered something similar very recently, maybe two or three times. Maybe it's related, so I am posting here. I had not noticed this prior to 4.2.2. I didn't think much of it at the time and unfortunately did not collect logs. In my case it was w/r to my 3-tuner HDHR Prime, using Kodi as my client. In my case there were 3 tuners, one was being used for LiveTV. While watching LiveTV, a scheduled recording then started. For whatever reason, NPVR selected the tuner being used for LiveTV and not one the other two unused tuners. When this happened, the channel I was watching was switched to the channel scheduled for a recording by NPVR and LiveTV continued to play, except on the different channel. All along, the two other tuners were available.

This also happened once when LiveTV was being using by one tuner, a program was being recorded on a 2nd tuner and a 2nd scheduled recording started (it should have been assigned the the remaining available tuner, but was assigned to the one used by LiveTV instead).

This doesn't always happen, only noticed it 3 times.

If this happens again, I will try to gather the logs and post.

sounds like a different problem, at least in the execution, but it could have a similar root cause. if it happens again post the logs. like, all of them