[mythtv-users] Problem with LiveTV Playback

Fri Sep 8 06:28:16 UTC 2006

Matthias,

Thank you for your quick reply.

I should have added more details to my original message.  This myth box was
working about 2 months ago, on Debian Sarge.  The hard drive died, and I am
replacing it with Ubuntu (my friend set it up on Debian, but I am more
familiar and comfortable with Ubuntu so I made the switch).  So the hardware
works, but I don’t know if it was in XV mode or not.

Anyways, without XV, I am still having issues, below is the new backend
output.    New errors that catch my eye this time are:
2006-09-07 23:21:44.685 Couldn't get the color key color, and we need it.
You likely won't get any video.

Thanks for your assistance,

Matt

$ mythfrontend --verbose playback
X Error: BadDevice, invalid or uninitialized input device 168
  Major opcode:  145
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 168
  Major opcode:  145
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
2006-09-07 23:21:21.875 New DB connection, total: 1
Total desktop width=1280, height=1024, numscreens=1
2006-09-07 23:21:21.994 Using screen 0, 1280x1024 at 0,0
2006-09-07 23:21:21.996 mythfrontend version: 0.18.1.20050510-1
www.mythtv.org
2006-09-07 23:21:21.997 Enabled verbose msgs : important general playback
2006-09-07 23:21:22.209 Switching to square mode (G.A.N.T.)
2006-09-07 23:21:22.717 Registering Internal as a media playback plugin.
2006-09-07 23:21:22.725 Registering MythDVD DVD Media Handler as a media
handler
mythtv: could not connect to socket
mythtv: No such file or directory
lirc_init failed for mythtv, see preceding messages
2006-09-07 23:21:22.791 Joystick disabled.
2006-09-07 23:21:33.474 Registering MythMusic Media Handler as a media
handler
2006-09-07 23:21:41.940 New DB connection, total: 2
2006-09-07 23:21:42.314 Connecting to backend server: 192.168.0.3:6543 (try
1 of 5)
2006-09-07 23:21:42.329 Using protocol version 15
2006-09-07 23:21:42.384 Using protocol version 15
2006-09-07 23:21:44.429 AVFD
2006-09-07 23:21:44.429 AVFD: Opening Stream #0: codec id 2
2006-09-07 23:21:44.430 detectInterlace(Detect Scan, Detect Scan, 29.97,
480) ->Interlaced Scan
2006-09-07 23:21:44.430 Interlaced: Interlaced Scan  video_height: 480  fps:
29.97
2006-09-07 23:21:44.444 AVFD: Looking for decoder for 2
2006-09-07 23:21:44.444 AVFD
2006-09-07 23:21:44.444 AVFD: Opening Stream #1: codec id 86016
2006-09-07 23:21:44.444 AVFD: Looking for decoder for 86016
2006-09-07 23:21:44.628 Estimated bitrate = 6384
2006-09-07 23:21:44.645 Filling position map from 0 to 43
2006-09-07 23:21:44.661 Position map filled from Encoder to: 2
2006-09-07 23:21:44.661 SyncPositionMap liveTV, from Encoder: 3 entries
2006-09-07 23:21:44.661 SyncPositionMap, new totframes: 30, new length: 1,
posMap size: 3
2006-09-07 23:21:44.662 Partial position map found
2006-09-07 23:21:44.667 Opening audio device '/dev/dsp'.
2006-09-07 23:21:44.667 Opening OSS audio device '/dev/dsp'.
2006-09-07 23:21:44.675 Over/underscan. V: 0, H: 0, XOff: 0, YOff: 0
2006-09-07 23:21:44.684 Using XV port 65
***
* Couldn't find Xv support, falling back to non-Xv mode.
* MythTV performance will be much slower since color
* conversion and scaling will be done in software.
* Consider upgrading your video card or X server if
* you would like better performance.
X Error: XvBadPort 152
  Major opcode:  141
  Minor opcode:  15
  Resource id:  0xffffffff
X Error: XvBadPort 152
  Major opcode:  141
  Minor opcode:  14
  Resource id:  0xffffffff
2006-09-07 23:21:44.685 Couldn't get the color key color, and we need it.
You likely won't get any video.
2006-09-07 23:21:44.704 Image size. dispxoff 0, dispyoff: 0, dispwoff: 1280,
disphoff: 1024
2006-09-07 23:21:44.704 Image size. imgx 0, imgy: 0, imgw: 480, imgh: 480
2006-09-07 23:21:44.886 Using realtime priority.
2006-09-07 23:21:44.920 Changing from None to WatchingLiveTV
2006-09-07 23:21:44.929 nVidiaVideoSync: Could not open device /dev/nvidia0,
No such device or address
2006-09-07 23:21:45.007 HandleGopStart: gopset not set, syncing positionMap
2006-09-07 23:21:45.016 Filling position map from 3 to 3
2006-09-07 23:21:45.036 Position map filled from Encoder to: 3
2006-09-07 23:21:45.036 SyncPositionMap liveTV, from Encoder: 4 entries
2006-09-07 23:21:45.036 SyncPositionMap, new totframes: 45, new length: 1,
posMap size: 4
2006-09-07 23:21:45.036 Stream initial keyframedist: 15.
2006-09-07 23:21:48.244 Timed out waiting for free video buffers.
2006-09-07 23:21:48.244 Attempting video sync thread restart
2006-09-07 23:21:51.444 Timed out waiting for free video buffers.
2006-09-07 23:21:51.444 Attempting video sync thread restart
2006-09-07 23:21:54.644 Timed out waiting for free video buffers.
2006-09-07 23:21:54.644 Attempting video sync thread restart
2006-09-07 23:21:57.844 Timed out waiting for free video buffers.
2006-09-07 23:21:57.845 Attempting video sync thread restart
2006-09-07 23:22:01.053 Timed out waiting for free video buffers.
2006-09-07 23:22:01.053 Attempting video sync thread restart
2006-09-07 23:22:04.265 Timed out waiting for free video buffers.
2006-09-07 23:22:04.265 Attempting video sync thread restart
2006-09-07 23:22:07.485 Timed out waiting for free video buffers.
2006-09-07 23:22:07.485 Attempting video sync thread restart
2006-09-07 23:22:10.705 Timed out waiting for free video buffers.
2006-09-07 23:22:10.705 Attempting video sync thread restart
2006-09-07 23:22:13.926 Timed out waiting for free video buffers.
2006-09-07 23:22:13.926 Attempting video sync thread restart

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Matthias Thyroff
Sent: Thursday, September 07, 2006 11:12 PM
To: mythtv-users at mythtv.org
Subject: Re: [mythtv-users] Problem with LiveTV Playback

Am Thu, 7 Sep 2006 22:58:45 -0700
schrieb "Matthew Walkup" <mwalkup at walkupnet.com>:

> List,
> 
> I am having difficulty getting video play back on Live TV.  The screen 
> is completely black.  What's curious to me, is in the cache directory, 
> I do see buffer, and I can open the buffer in mplayer, and it plays 
> fine.
> 
> root at mythtv01:/var/cache/mythtv# ls -la total 564
> drwxrwsr-x  2 mythtv mythtv   4096 2006-09-07 10:23 .
> drwxr-xr-x 14 root   root     4096 2006-09-02 23:04 ..
> -rw-r--r--  1 root   mythtv 565184 2006-09-07 10:23 ringbuf1.nuv
> 
> I'm using 2 PVR-250s, attempting to get 1 of them to work at a time 
> (/dev/video0).  The only line that really catches my eye is:
> 2006-09-07 10:13:07.227 nVidiaVideoSync: Could not open device 
> /dev/nvidia0, No such device or address
> 
> But I do not have an nvidia device (I have a matrox card), and I can't 
> find anywhere in the settings that set it to use an nvidia device.  
> I'm a MythTV noob, but I do note that something must be wrong with the 
> playback (and not with the capture cards, etc) because I do see the 
> buffer, and the buffer plays in mplayer.
> 
> Below are my lspci and outputs.
> 
> Thanks all for your time,
> 
> Matt

I did not have success getting myth with xv to work on a matrox card (G650).

Try 

export NO_XV=1

before starting mythfrontend, then you should at least get an image.
That way, my XP2500+ is too slow to show smooth SD, though.
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