Live TV not working

[jresnick]

I didn't see the Colbert issue but for Live TV,  I would use the option to only send active pids. 

Do recordings on the channels that you can't use for Live TV play ok?  If so, your provider may have moved to h264 and you would need to change the setting on those channels.  During a recording you can hit Ctrl-I to see the video format.

Martin

Hi Martin, I don't know what you mean in your answer (use the option to only send active pids).  But, I do have new info.  I decided for some reason to launch HDHomeRun (the app developed by SiliconDust) which I don't use because I like NextPVR better.  The video and audio work on any channel.  Therefore, it has something to do with NextPVR not Comcast or the signal being received by the cable card.  Just to reiterate, I can not get live tv on any channel (green light just flashes) but for some reason NextPVR will record a couple of the late night shows just not Colber.  Any ideas with this new info?

[mvallevand]

What about the answer my question on recordings? Create a new recording and then open it an watch it play and assuming it works hit ctrl-i. I am betting the the video format changed.

I can't really help with Colbert

2019-12-17 00:39:01.761 [DEBUG][8] No errors, but no data delivered

You probably need to be watching you HDHR status indicator during a recording. Does WWJDT work for recording other shows?

Martin

[jresnick]

I didn't see the Colbert issue but for Live TV,  I would use the option to only send active pids. 

Do recordings on the channels that you can't use for Live TV play ok?  If so, your provider may have moved to h264 and you would need to change the setting on those channels.  During a recording you can hit Ctrl-I to see the video format.

Martin

Hi Martin, I don't really understand most of your answer.  However, on a whim, I loaded HDHomreRun the software developed by the company that makes my tuner.  Much to my surprise, I can watch and hear any station.  Therefore, it's a NextPVR problem not the signal or cable card.  To repeat, I can not watch any channel on live tv with Next PVR.  One of the 3 tuner lights just flashes green and my screen goes black.  For some reason, as mentioned it will record a couple of the shows but not Colbert.  How can it record video and sound by not live tv.  It makes no sense to me.  Any new ideas in light of the fact that HDHomeRun application works fine?

[jresnick]

What about the answer my question on recordings? Create  a new recording and then open it an watch it play and assuming it works hit ctrl-i.  I am betting the the video format changed.

I can't really help with Colbert

2019-12-17 00:39:01.761 [DEBUG][8] No errors, but no data delivered

You probably need to be watching you HDHR status indicator during a recording.  Does WWJDT work for recording other shows?

Martin

Ok. Did what you said.  Started recording a show and then hit play.  It worked fine.  I could see picture and hear video.  What does that mean?  Video Codec H.264 Audio Codec AC-3 Audio PID 4333

[mvallevand]

Great that is what I though Sub tried to have Live TV save a few milliseconds tuning in NextPVR so uses a stored video format, but over the past few years cable companies have changed that format and some channels need to be be remapped.

Here was sub's suggestion to change the format https://forums.nextpvr.com/showthread.ph...#pid502118

Martin

[BrettB]

What about the answer my question on recordings? Create  a new recording and then open it an watch it play and assuming it works hit ctrl-i.  I am betting the the video format changed.

I can't really help with Colbert

2019-12-17 00:39:01.761 [DEBUG][8] No errors, but no data delivered

You probably need to be watching you HDHR status indicator during a recording.  Does WWJDT work for recording other shows?

Martin

This line doesn't look "right" to me:

Code:

2020-01-04 10:29:53.955    [DEBUG][30]    Executing: C:\Program Files\Silicondust\HDHomeRun\hdhomerun_config.exe 13192329 key 99021 set /tuner0/channel auto:27
2020-01-04 10:29:54.050    [DEBUG][30]    Executing: C:\Program Files\Silicondust\HDHomeRun\hdhomerun_config.exe 13192329 key 99021 set /tuner0/program 9

For my HDHR Primes's (using the HDHR device type, not the ATSC/QAM ones via the BDA drivers), the tuning was done with a single command using a virtual/logical channel number set by the cable company like this:

Code:

2019-11-05 23:11:17.363    [DEBUG][9]    Executing: C:\Program Files\Silicondust\HDHomeRun\hdhomerun_config.exe 1076BCCD key 100576 set /tuner0/vchannel 802

Behind the scenes, the cable company maps that virtual channel 802 to a physical channel and program/PID. And they sometimes move/change that physical channel/PID mapping (which should be transparent to the user).

I think that somehow your channel got created with a "legacy" mapping (using a physical channel and PID) rather than the virtual channel. And your cable company has changed the physical channel and/or PID it is using.

Things that I would try:
1. BACK UP YOUR NPVR.DB database file!
2. Go to the web server screen for your HDHR and update its channel listing (Channel Lineup | Detect Channels). This will get the most current logical channel to physical channel/PID mappings from your cable company. It will also indicate which channels are "DRM" protected (i.e. can't be used in NPVR) and which are H.264 encoded (tagged "AVC" in the channel list).
3. Stop NPVR, rename the NPVR.DB file, start NPVR (it will create a new, empty database), setup the HDHR device (which should use the logical channel tuning), do a test recording from your Colbert channel.

If that fixes your problem, then we can probably help you figure out the best way to "update" your tuning information in your production database.

[sub]

jresnick, what model HDHomeRun are you using?

[jresnick]

jresnick, what model HDHomeRun are you using?

Ok, so I renamed the data file, re-scanned and now I can watch live tv.  The only problem is I forgot how to change the source to Schedules Direct for all the channels at once. HDHomeRun Prime.

[sub]

What about the answer my question on recordings? Create  a new recording and then open it an watch it play and assuming it works hit ctrl-i.  I am betting the the video format changed.

I can't really help with Colbert

2019-12-17 00:39:01.761 [DEBUG][8] No errors, but no data delivered

You probably need to be watching you HDHR status indicator during a recording.  Does WWJDT work for recording other shows?

Martin

Ok. Did what you said.  Started recording a show and then hit play.  It worked fine.  I could see picture and hear video.  What does that mean?  Video Codec H.264 Audio Codec AC-3 Audio PID 4333

Martin is right. The application thinks these channels are MPEG2, but they're actually H.264 video. This doesn't matter for playback of recordings. It does matter for live TV, since it hooks up the wrong type of video decoder.

In NextPVR v4, you can go into your Settings->Devices screen, double click the device, right-click on each channel, selecting the 'edit channel' context menu option, and changing the type to H.264, then hit ok and it'll correct it. (normally you wouldn't have to do this, but something went wrong at scan time, so it ended up with the default channel channel type of MPEG2)

[sub]

jresnick, what model HDHomeRun are you using?

Ok, so I renamed the data file, re-scanned and now I can watch live tv.  The only problem is I forgot how to change the source to Schedules Direct for all the channels at once. HDHomeRun Prime.

Ok - glad you got it working.

Normally you'd use the Bulk Map button. Manually map the first channel, then it'll offer to have a go at the rest of the channels.