Live tv does not use all available tuners

My windows server is configured with a hauppage 1250 and a HDHomeRun duo. I have a total of 3 tuners available. A few channels are on only one of the tuners because they use different antenna orientation but most of my ~30 channels are on both tuners. While the first tuner is being used by a client, I get an error message that there are no tuners available when a second client tries to connect to a different channel. But the 2 tuners on the HDHomeRun are free and the second client should use it but it does not happen. I removed both devices and re added them , same result. Everything appears to be ok, I can see that for a channel, the 2 color bars indicating that the channels are available on both devices. Does someone have the same configuration working ?

I just tried this mixing a DVR managed by the Plex Tuner Service and a DVR managed directly by Plex Media Server - with a HD HomeRun Dual (managed by Plex Tuner Service like your Hauppage 1250) and an HD HomeRun Duo (managed directly by Plex Media Service)

I had 137 channels selected on the HD HomeRun Duo and 90 of those selected on the HD HomeRun Dual

I managed to get 4 recordings in parallel using the 2 tuners on each DVR

The number of available tuners is per DVR - so it did reach point of 0 tuners left after the first 2 recordings. But when selecting the 3rd it did switch to using the other DVR

Oct 14, 2022 11:44:33.818 [11352] DEBUG - [Req#a2a5a/Grabber/8ae769041d717a5c9a7305bd1f41b0d564c44ab9] Grabber: Waiting for a tuner on device://tv.plex.grabbers.hdhomerun/12400368 (2 available) for at most 1827 seconds.
Oct 14, 2022 11:44:33.818 [11352] DEBUG - [Req#a2a5a/Grabber/8ae769041d717a5c9a7305bd1f41b0d564c44ab9] Grabber: Allocated a tuner on device://tv.plex.grabbers.hdhomerun/12400368 (1 left)
Oct 14, 2022 11:46:55.045 [7304] DEBUG - [Req#a32a6/Grabber/b88b53ba1eece7de7bc9663828ee63e6631abf4e] Grabber: Waiting for a tuner on device://tv.plex.grabbers.hdhomerun/12400368 (1 available) for at most 1685 seconds.
Oct 14, 2022 11:46:55.045 [7304] DEBUG - [Req#a32a6/Grabber/b88b53ba1eece7de7bc9663828ee63e6631abf4e] Grabber: Allocated a tuner on device://tv.plex.grabbers.hdhomerun/12400368 (0 left)
Oct 14, 2022 11:51:02.229 [5704] DEBUG - [Req#a4f73/Grabber/1668f7908140ad3bd9573ecfaaa9f6baeae6a41a] Grabber: Remote starting a media grab on device device://tv.plex.grabbers.tunerservice/dvb%23hdhr%23122128B3 (Silicondust HDHomeRun DUAL, supported) tuner 1.
Oct 14, 2022 11:51:02.235 [5704] DEBUG - [Req#a4f73/Grabber/1668f7908140ad3bd9573ecfaaa9f6baeae6a41a] Grabber: Waiting for a tuner on device://tv.plex.grabbers.tunerservice/dvb%23hdhr%23122128B3 (2 available) for at most 538 seconds.
Oct 14, 2022 11:51:02.235 [5704] DEBUG - [Req#a4f73/Grabber/1668f7908140ad3bd9573ecfaaa9f6baeae6a41a] Grabber: Allocated a tuner on device://tv.plex.grabbers.tunerservice/dvb%23hdhr%23122128B3 (1 left)
Oct 14, 2022 11:52:39.498 [1320] DEBUG - [Req#a6064/Grabber/5fc76db4e3cd4a002dc5fc39-5fc70604598c41002da3ddc1-paw0w8kcxddvmjltos5byl7q] Grabber: Remote starting a media grab on device device://tv.plex.grabbers.tunerservice/dvb%23hdhr%23122128B3 (Silicondust HDHomeRun DUAL, supported) tuner 0.
Oct 14, 2022 11:52:39.502 [1320] DEBUG - [Req#a6064/Grabber/5fc76db4e3cd4a002dc5fc39-5fc70604598c41002da3ddc1-paw0w8kcxddvmjltos5byl7q] Grabber: Waiting for a tuner on device://tv.plex.grabbers.tunerservice/dvb%23hdhr%23122128B3 (1 available) for at most 300 seconds.
Oct 14, 2022 11:52:39.502 [1320] DEBUG - [Req#a6064/Grabber/5fc76db4e3cd4a002dc5fc39-5fc70604598c41002da3ddc1-paw0w8kcxddvmjltos5byl7q] Grabber: Allocated a tuner on device://tv.plex.grabbers.tunerservice/dvb%23hdhr%23122128B3 (0 left)

If the required channel is available on the other DVR, then it should be selecting that

I suggest getting some diagnostics to see why it is failing - if you know that the required channel is available and enabled on the free tuner/DVR

The diagnostics would be debug server logs for a controlled test - starting with a fresh launch of Plex Media Server after ensuring debug logging is enabled

Also providing details of the channels used for the test and which DVRs they are enabled on

A download of the Plex Media Server database at the end of the test could also be helpful (Plex Web / Settings / Troubleshooting / Download Database and also Download Logs

Thank you sa2000. find attached the logs when i reprioduced the problem this morning.
10:29, restarted the server after enabling logging
10:31 started watching 3.1 on my laptop
10:32 opened Plex on IOS, started watching 5.1
Message that all tuners are busy and proposed to stop watching 3.1 in order to watch 5.1
10:33 stopped watching 3.1 on laptop, was able to start watching 5.1 on IOS
10:34 started watching 7.1 on IOS

One thing I can try is to remove some channels from my first tuner and see how it goes to the second tuner. I will try this and send a new set of logs.

Screenshots.zip (1.9 MB)
Plex Media Server Databases_2022-10-14_10-36-39.zip (25.1 MB)
Plex Media Server Logs_2022-10-14_10-36-22.zip (4.4 MB)

Thank you

Daniel

Thanks - will have a look next week

My tests were for recordings - May be we have an issue with live tv streaming

Can you repeat your test but do it for recordings to see if that works ok

Deleted al 2 tuners devices, restarted server, added Hauppage 1250 at 14:02, waited for EPG download complete, 14:14, All is working perfect with one tuner. Added HDHomerun tuner, waited for EPG download. Tested and YESSS everything is working perfect. On channels available only the 1250, i can have 2 devices playing the same channel and I get message on second device that no tuner available if it tries to tune another channel only appearing on the 1250. Excellent.
If the second device is tuning a channel available on the hdhomerun, it plays ok, if a third devive tries to play anotherone on the hdhomerun, it plays. all 3 devices playing simultaneously. solved
So I am sending you the log and databases of the working setup. I guess the original one got corrupted somehow . you can compare both and identify what was different.

Thanks for the support.

Daniel
Plex Media Server Databases_2022-10-14_14-22-37.zip (25.1 MB)
Plex Media Server Logs_2022-10-14_14-22-07.zip (3.2 MB)
Debug 2.txt (326.3 KB)

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