2025-02-08, 03:10 AM
(This post was last modified: 2025-02-08, 03:18 AM by DaVinylSmith.)
Hello All, bear with me if I miss anything as forum posting is relatively new to me
I think I came across an odd bug running NextPVR on Debian. Since we have been hitting limits on available tuners recently I decided to pick up a second tuner card for our server. However, I can only get 7 tuners functional. As soon as I try to utilize tuner number 8, things start getting weird.
Troubleshooting around, I have come across a couple things:
1. the issue does not seem to be hardware specific. My original attempt was with two Hauppauge WinTV-quadHD tuners (one PCIe & one USB). Thinking it was a weird issue with different tuner chipsets, i bought a second PCIe card and the issue persists
2. trying to load a channel that utilizes tuner 8, it sits there trying to start the stream, but ends up failing with a 'transcoder exited' error
3. Here's where it gets weirder. If tuner #1 is being used (usually when something is recording) I get 'No tuner was available for the requested channel' and 'ERROR Device or resource busy while opening /dev/dvb/adapter0/frontend0' even though the tuner should be adapter7/frontend0
4. Even though I am unable to watch any channels on tuner 8, I can still scan for channels just fine (i was unable to confirm if this was actually using a different tuner to scan)
I have also attached the logs as requested in the wiki. A quick look at the end of device-adapter0.log shows the most recent attempt of the tuner trying and failing. I do not see a log file for adapter7
I am genuinely curious if anyone else is having the same issue I am as it's odd but seems to be easily reproducible from my end.
Chris
I think I came across an odd bug running NextPVR on Debian. Since we have been hitting limits on available tuners recently I decided to pick up a second tuner card for our server. However, I can only get 7 tuners functional. As soon as I try to utilize tuner number 8, things start getting weird.
Troubleshooting around, I have come across a couple things:
1. the issue does not seem to be hardware specific. My original attempt was with two Hauppauge WinTV-quadHD tuners (one PCIe & one USB). Thinking it was a weird issue with different tuner chipsets, i bought a second PCIe card and the issue persists
2. trying to load a channel that utilizes tuner 8, it sits there trying to start the stream, but ends up failing with a 'transcoder exited' error
3. Here's where it gets weirder. If tuner #1 is being used (usually when something is recording) I get 'No tuner was available for the requested channel' and 'ERROR Device or resource busy while opening /dev/dvb/adapter0/frontend0' even though the tuner should be adapter7/frontend0
4. Even though I am unable to watch any channels on tuner 8, I can still scan for channels just fine (i was unable to confirm if this was actually using a different tuner to scan)
I have also attached the logs as requested in the wiki. A quick look at the end of device-adapter0.log shows the most recent attempt of the tuner trying and failing. I do not see a log file for adapter7
I am genuinely curious if anyone else is having the same issue I am as it's odd but seems to be easily reproducible from my end.
Chris
