[mythtv-users] live tv = black screen, can't record, hd-3000, 0.18.1

matthew.garman at gmail.com matthew.garman at gmail.com
Thu May 18 17:58:00 UTC 2006


I'm in the process of setting up a MythTV box for my parents.  I'm
using Gentoo Linux, kernel 2.6.15 (with gentoo patches),
nvidia-kernel 1.0.8756 and mythtv-0.18.1.

The capture card is the pcHDTV-3000.  The card appears to be
working: I can use azap plus mplayer /dev/dvb/adapter0/dvr0 to get
sound and video.

Within mythtvsetup, I can scan for and detect all the channels that
we expect.

However, whenever I try to watch live tv, I only get a black screen
that eventually throws me back out into the MythTV menus.  The
frontend log says this:


2006-05-14 21:42:47.699 New DB connection, total: 1
Total desktop width=1024, height=768, numscreens=1
2006-05-14 21:42:47.710 Using screen 0, 1024x768 at 0,0
2006-05-14 21:42:47.713 mythfrontend version: 0.18.1.20050510-1 www.mythtv.org
2006-05-14 21:42:47.713 Enabled verbose msgs : important general
2006-05-14 21:42:47.804 Switching to square mode (G.A.N.T.)
mythtv: could not connect to socket
mythtv: No such file or directory
lirc_init failed for mythtv, see preceding messages
2006-05-14 21:42:48.135 Registering Internal as a media playback plugin.
2006-05-14 21:42:51.584 New DB connection, total: 2
2006-05-14 21:42:51.608 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5)
2006-05-14 21:42:51.618 Using protocol version 15
2006-05-14 21:42:51.666 Using protocol version 15
2006-05-14 21:42:56.807 taking too long to be allowed to read..
2006-05-14 21:43:01.811 taking too long to be allowed to read..
2006-05-14 21:43:10.820 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:14.825 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:18.829 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:22.834 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:26.838 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:30.843 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:34.847 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:38.851 Waited 4 seconds for data to become available, waiting again...
2006-05-14 21:43:38.852 Waited 14 seconds for data to become available, aborting
Couldn't read file: rbuf://127.0.0.1:6543/home/mythtv/ringbuf1.nuv
2006-05-14 21:43:38.904 Changing from None to WatchingLiveTV
2006-05-14 21:43:38.904 Decoder not alive, and trying to play..
2006-05-14 21:43:38.984 Changing from None to None


The "Couldn't read file: rbuf://.../ringbuf1.nuv" is curious.  I'm
running mythfrontend as root.  The directory /home/mythtv exists; I
even changed its permissions to 777.  In my testing, I found that
the ringbuf1.nuv file *is* actually created, but it never grows
beyond zero bytes.  It is eventually deleted, though.

The same thing basically happens when I try to watch recorded TV:


2006-05-14 21:55:09.198 All Programs
2006-05-14 21:55:10.987 Invalid file handle when opening /home/mythtv/1043_20060514214500_20060514215000.nuv.  4 retries remaining.
2006-05-14 21:55:11.491 Invalid file handle when opening /home/mythtv/1043_20060514214500_20060514215000.nuv.  3 retries remaining.
2006-05-14 21:55:11.995 Invalid file handle when opening /home/mythtv/1043_20060514214500_20060514215000.nuv.  2 retries remaining.
2006-05-14 21:55:12.500 Invalid file handle when opening /home/mythtv/1043_20060514214500_20060514215000.nuv.  1 retries remaining.
2006-05-14 21:55:13.004 Invalid file handle when opening /home/mythtv/1043_20060514214500_20060514215000.nuv.  0 retries remaining.
File not found: /home/mythtv/1043_20060514214500_20060514215000.nuv


Again, the file above *is* there, but it's a zero-byte file.

Anyone have any ideas or suggestions?

Thanks!
Matt



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