[mythtv-users] PVR350 and 150 - frontend cannot switch tuners

Fedor Pikus fpikus at gmail.com
Sun Jun 5 20:03:20 UTC 2005


I've added PVR150MCE to my PVR350. Modules are configured, I can do:
cat /dev/video0 > /tmp/test0.mpg
cat /dev/video1 > /tmp/test1.mpg
even at the same time from two different xterms, and they record
video, two different channels. I run mythtv-setup, I can add the
second capture card (there is no PVR150 option in setup, I used the
same option as for PVR350). Setup sees two tuners on 150MCE, not one.
I can link both to the same video lineup as the 350, or link only one
and leave the second as "None", does not seem to make much difference
for what happens next.

I launch the frontend and go to Watch TV. I hit "C", and after a short
delay nothing happens. I tried "V", nothing happens as well. The
strange thing is, I'm watching from 150MCE tuner and cannot switch to
the 350 tuner (which worked just fine before).

There's nothing illuminating in the backend log, frontend log has this:

2005-06-05 12:18:42.001 Connecting to backend server:
192.168.1.15:6543 (try 1 of 5)
2005-06-05 12:18:42.009 Using protocol version 15
2005-06-05 12:18:42.039 Using protocol version 15
2005-06-05 12:18:46.358 Opening audio device 'default'.
Using XvMC version: 1.0
XvMC found and using IDCT surface
2005-06-05 12:18:46.407 Using XV port 177
2005-06-05 12:18:46.447 Couldn't get the color key color, and we need it.
You likely won't get any video.
2005-06-05 12:18:46.671 Realtime priority would require SUID as root.
2005-06-05 12:18:46.693 Changing from None to WatchingLiveTV
2005-06-05 12:18:46.786 Video timing method: RTC

<========= I press "C", video freezes ===========>

2005-06-05 12:18:55.799 Waited too long for ringbuffer pause..
2005-06-05 12:19:02.044 prebuffering pause
2005-06-05 12:19:04.686 prebuffering pause

<========= Video resumes, same tuner ===========>

2005-06-05 12:19:06.268 Waited too long for ringbuffer pause..
2005-06-05 12:19:06.553 Couldn't get the color key color, and we need it.
You likely won't get any video.

The only other thing which might be relevant I can see in the system
log. When I manually capture video from PVR350 I see this show up:

Jun  5 13:01:42 myth kernel: ivtv: Allocate DMA stream 0 using 128
16384 byte buffers  2097152 kbytes total
Jun  5 13:01:42 myth kernel: ivtv: Setup VBI API header 0x0000bd0d
pkts 1 buffs 4 ln 24 sz 1444
Jun  5 13:01:42 myth kernel: ivtv: Setup VBI start 0x0018ea04 frames 4
fpi 1 lines 0x000000f1
Jun  5 13:01:43 myth kernel: saa7115: decoder disable output
Jun  5 13:01:43 myth kernel: saa7115: decoder enable output

When I capture from PVR150 I don't get the last 2 lines about saa7115.
When mythfrontend is running, I also get only the first 3 lines,
saa7115 is not mentioned.

Any suggestions?
-- 
Fedor G Pikus (fpikus at gmail.com)
http://www.pikus.net
http://wild-light.com


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