[mythtv-users] HD3000 recording problem in Mythtv- signalStrengthATSC_v4l2(), error: Invalid argument

[Steve Adeff]

On Monday 28 November 2005 15:47, Brad Fuller wrote:
> Howdy all,
>
> I can now view HD3000 signals outside of mythtv (YEAH) but I cannot
> record HD3000 signals inside of myth.
> I'm using OTA for HD3000 and cable for PVR250 - both in the same box.
> PVR250 records fine (although it's labeled as Encoder 2 on mythweb and
> the HD3000 is labeled Encoder 4. Strange.)
>
> I'm wondering if it is something to do with the tuning or the device
> assignment or both
>
> Potential Assignment problem:
>
> When playing outside of myth (with mplayer) the HD3000 device is:
> /dev/dvb/adapter0/dvr0
>
> But, mythtv-setup indicates an error about not being able to probe the
> inputs. The permissions on the directory and the devices are the same as
> my PVR-250 (video1). I also tried it as "root" with no change.
> It does let me assign it to video32 which seems to be a device that
> others have used. I don't understand this.
>
> The HD3000 is assigned to a Video Source Setup (called "terrestrial")
> that connects to Zap2It programs of Local broadcast. The tuning table is
> us-bcast.
>
> I think this is my main problem.
>
> ----
> Potential Tuning Problem:
>
> I have a list of azap channels in my ~/.azap directory. Can someone tell
> me if MythTV uses this table?
>
> I created a HD3000 card in mythtv-setup and assigned it to bcast. I
> created a new Zap2It entry for broadcast TV and assigned this to the
> HD3000 card. It seemed to dnl the program data fine as the program guide
> has terrestrial channels like 3_1, 4_1 intermingled with the regular
> cable channels.
>
> But, when I try record something on a ATSC channel even though the hard
> disk grinds away and MythTV thinks it's recording nothing shows up and
> the .nuv file is empty. This is the relevent mythbackend log:
>
> -----------------------
> 2005-11-28 10:34:31.111 Started recording "The View" on channel: 2020 on
> cardid: 4, sourceid 2
> 2005-11-28 10:34:31.608 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:32.114 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:32.622 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:33.130 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:33.638 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:34.146 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:34.653 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:35.161 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:35.669 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:36.177 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:36.685 Channel(14)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:36.771 Changing from None to RecordingOnly
> 2005-11-28 10:34:36.845 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:37.349 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:37.857 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:38.365 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:38.873 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:39.381 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:39.889 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:40.397 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:40.905 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:41.413 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:41.921 Channel(15)::signalStrengthATSC_v4l2(), error:
> Invalid argument
> 2005-11-28 10:34:42.633 HD5 Error: could not obtain sync
> 2005-11-28 11:00:00.006 Finished recording The View on channel: 2020
> -----------------------
>
> The program that was suppose to record is on channel 7-1 which is KPIXDT
> in Zap2It listing, and "KPIX DT" in azap (if that makes a difference).
> Here's  my channels from azap:
>
> $ cat ~/.azap/channels.conf
> KNTV-HD:207000000:8VSB:65:68:4
> NBC Wea:207000000:8VSB:81:84:5
> KBWB-HD:503000000:8VSB:49:52:3
> KBWB-SD:503000000:8VSB:65:68:4
> KGO-DT :533000000:8VSB:49:52:3
> KGO-DT :533000000:8VSB:65:68:4
> KTSF-D2:551000000:8VSB:49:68:4
> KTSF-D1:551000000:8VSB:49:52:3
> KPIX DT:563000000:8VSB:49:52:1
> KQED-HD:569000000:8VSB:49:52:3
> ENCORE:569000000:8VSB:65:68:4
> WORLD:569000000:8VSB:81:84:5
> LIFE:569000000:8VSB:97:100:6
> KIDS:569000000:8VSB:113:116:7
> KMTP Digital Television:587000000:8VSB:49:52:3
> KFSF DT:593000000:8VSB:49:52:3
> [0004]:593000000:8VSB:65:68:4
> KCNS-DT:623000000:8VSB:49:52:3
> KKPX FaithTV:635000000:8VSB:97:100:6
> KKPX Worship:635000000:8VSB:81:84:5
> KKPX Pax:635000000:8VSB:65:68:4
> KKPX Digital Television:635000000:8VSB:49:52:3
> KCSM-TV:647000000:8VSB:33:36:2
> Jazz-TV:647000000:8VSB:49:52:3
> Jazz-TV:647000000:8VSB:65:68:4
> KBHK-DT:659000000:8VSB:49:52:1
> KSTS-DT:683000000:8VSB:49:52:3
> KTEH-DT:689000000:8VSB:49:52:1
> KICU-HD:701000000:8VSB:49:52:3
> KICU-SD:701000000:8VSB:65:68:4
> KTVUHD:725000000:8VSB:49:52:3
> KTVU-DT:725000000:8VSB:65:68:4
> KRON-SD:731000000:8VSB:49:52:3
> KRON-HD:731000000:8VSB:65:68:4
>

I had similar problems once, you need to recompile MythTV and make sure to 
enable DVB support. It could also be improper DVB header files for the 
drivers which Myth uses. I've tried the ones that come with the 2.6.13 kernel 
with no luck so I just grabbed the drivers from the pchdtv.com downloads area 
and installed *just* the header files.

-- 
Steve