[mythtv-users] Comcast & Firewire STB's without 5C/Firewire equipment

Brad Fuller bradallenfuller at gmail.com
Mon May 4 01:08:43 UTC 2009


On Sun, May 3, 2009 at 5:30 PM, Brad Fuller <bradallenfuller at gmail.com> wrote:
> All,
> I went to the Comcast office and picked up a 1394-enabled STB
> (DCH3416). I added the appropriate
> updates to 6200ch.c to change the channel. I can change the channel
> outside of MythTV now, and it changes channel while watching TV or
> recording. So, that _seems_ to work ok.
>
> But, I get the same problem I've seen others mention, it only records
> sometimes. It starts out fine in LiveTV (on ch2) and sometimes when
> switching a channel, it'll switch and display fine. But, subsequent
> channel changing, most other times,  the video locks up (NVP pauses,
> actually) although it switches channel.


Another symptom is the errors:
=====================================
2009-05-03 18:01:12.751 NVP: Disabling Audio, params(-1,2,44100)
2009-05-03 18:01:12.777 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Overlay'
2009-05-03 18:01:12.823 OSD Theme Dimensions W: 640 H: 480
2009-05-03 18:01:13.127 Realtime priority would require SUID as root.
2009-05-03 18:01:13.230 Video timing method: USleep with busy wait
2009-05-03 18:01:13.365 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Overlay'
2009-05-03 18:01:13.656 AFD: Opened codec 0x9707f10, id(MPEG2VIDEO) type(Video)
2009-05-03 18:01:13.656 AFD: codec AC3 has 6 channels
2009-05-03 18:01:13.657 AFD: Opened codec 0x977d940, id(AC3) type(Audio)
2009-05-03 18:01:13.657 AFD: codec AC3 has 2 channels
2009-05-03 18:01:13.658 AFD: Opened codec 0x977ddb0, id(AC3) type(Audio)
2009-05-03 18:01:13.658 AFD: codec AC3 has 2 channels
2009-05-03 18:01:13.658 AFD: Opened codec 0x977e3f0, id(AC3) type(Audio)
2009-05-03 18:01:13.663 Opening audio device 'default'. ch 2(2) sr 48000
2009-05-03 18:01:13.663 Opening ALSA audio device 'default'.
2009-05-03 18:01:13.666 NVP: Enabling Audio
2009-05-03 18:01:16.922 Using protocol version 40
2009-05-03 18:01:26.838
RingBuf(/content/video/mythtv/4002_20090503180119.mpg): Invalid file
(fd -1) when opening '/content/video/mythtv/4002_20090503180119.mpg'.
=======================================

This complete sequence repeats, at least 3 times before it failed and
FE went back to the GUI.

BTW: LiveTV works on my other tunners: PVR250, pchdtv3000, HDHR.

Any ideas?

-- 
Brad Fuller


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