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Channels / Services no longer found
Added by encore 2097 over 3 years ago
Hello, I had Tvheadend running on debian 10 with a Hauppauge WinTV-HVR-1250 working with ATSC.
After sometime, the channels no longer work and re-scanning finds no channels / services.
My TV w/ built in tuner can find the channels as always.
Thinking my card might be dead I got a Hauppauge WinTV-HVR-1265 with the same result.
Tvheadend "version": 24 "full_version": "4.2.8-dmo1"
uname -a Linux stratus 4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) x86_64 GNU/Linux
I've apt install'ed firmware-misc-nonfree
Here's the channels / services that were discovered before:
attached: channel-list.m3u
It played fine in VLC.
I've scanned with tvheadend with:
United States: us-Cable-Standard-center-frequencies-QAM256
United States: us-ATSC-center-frequencies-8VSB
attached: tvheadend.log
Here's the scan with w_scan
$ w_scan -fa -A3 -c US -X
attached wscan.log
Any ideas why my tuner / tvheadend can no longer find channels?
tvheadend.log (132 KB) tvheadend.log | tvheadend scan log | ||
channel-list.m3u (171 KB) channel-list.m3u | pervious_channel_list | ||
1265-wscan-2.txt (41.9 KB) 1265-wscan-2.txt | wscan |
Replies (5)
RE: Channels / Services no longer found - Added by encore 2097 over 3 years ago
I tried the cards on a Win 10 machine with NextPVR, it identified one of the tuner front ends as QAM the other as ATSC. When I hit scan on QAM it found around 300+ channels.
How can I replicate this in tvheadend?
I've tried a custom ATSC-C network and adding muxes manually.
Guessing Symbol/s as 6900000 , QAM/256 and FEC: AUTO
Its still not working.
I read it might help to reduce PCIe speed to 1x at the *update it didnt make a difference.
The only change in my system is I upgraded my CPUs from Xeon Sandy Bridge to Xeon Ivy Bridge. I reset BIOS after the upgrade and haven't noticed any issues except this now.
Another change is to try enable CSM, vs UEFI only.
RE: Channels / Services no longer found - Added by saen acro over 3 years ago
You have problem with driver or firmware.
If want to use UEFI then make signed Driver.
Start to read DMESG.
RE: Channels / Services no longer found - Added by encore 2097 over 3 years ago
dmesg shows no issues as far as I can tell. dmesg.txt attached
wasn't an UEFI issue.. maybe power management..
I'm going to reset my BIOS to default and see if that fixes the issue.
RE: Channels / Services no longer found - Added by encore 2097 over 3 years ago
Well it wasn't the BIOS settings.
I booted a debian live cd , debian-live-10.6.0-amd64-gnome . The UI mouse and kb would freeze intermittently but I got ssh up and ran w_scan and it found channels!
I tried the 4.19.0-14 (debian 10.8) and 4.19.0-9 (debian 10.9 kernel on my current system with no success.
I wanted to try the debian 10.6 kernel 4.19.0-11 but no headers are found in the apt.
I'll try a debian 10.9 live cd for a sanity check then bisect live cds and see where the issue started happening.
Its seems like kernel, driver or software.
For the driver: cx23885
Git history https://github.com/torvalds/linux/tree/master/drivers/media/pci/cx23885 shows there was some changes 5 months ago.. I dont see the debian kernel git I only found the changelog here: https://salsa.debian.org/search?utf8=%E2%9C%93&search=cx23885&group_id=2107&project_id=18670&scope=&search_code=true&snippets=false&repository_ref=master&nav_source=navbar
RE: Channels / Services no longer found - Added by saen acro over 3 years ago
https://github.com/b-rad-NDi/Ubuntu-media-tree-kernel-builder
Try official repo.