[mythtv-users] No sound output when watching LiveTV
Ole Jørgen Legård
olejorgen at start.no
Mon May 15 14:02:55 EDT 2006
Hi
I am new to Linux and MythTV, and I have some problems with sound in
MythTV. I will try my best to explain my problem. I have been searching
the Internet for MythTV, alsa, no sound etc., but I cant find any
solution to my problem. I am sure it is easy if you know what you are
doing. I am having big trouble to understand how everything with sound
is working so please be patient.
I will start with some information from my system. I dont know what is
relevant so I will make a guess.
My HW:
Processor: AMD Athlon64 3500+
Motherboard: EpoX nVida4 Ultra
TV Tuner: Pinnacle PCTV 50i
Hard disk: Western Digital 250GB SATA
RAM: 512MB
I installed FC5 and ran "yum update"
[mythtv at localhost ~]$ uname -a
Linux localhost.localdomain 2.6.16-1.2111_FC5 #1 SMP Thu May 4 21:16:04
EDT 2006 x86_64 x86_64 x86_64 GNU/Linux
Installed MythTV using "yum install mythtv-suite"
[mythtv at localhost ~]$ mythbackend --version
Library API version: 0.19.20060121-2
Source code version: Unknown
Options compiled in:
linux release using_xvmcw using_v4l using_oss using_alsa using_arts
using_ivtv using_firewire using_dbox2 using_lirc using_joystick_menu
using_dvb using_dvb_eit using_x11 using_xv using_dvdnav using_xrandr
using_xvmc using_xvmc_vld using_opengl_vsync using_frontend
using_backend
[mythtv at localhost ~]$ /sbin/lspci
...
00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97
Audio Controller (rev a2)
...
01:06.0 Multimedia controller: Philips Semiconductors SAA7133 Video
Broadcast Decoder (rev d0)
05:00.0 VGA compatible controller: nVidia Corporation GeForce 6200
TurboCache(TM) (rev a1)
[mythtv at localhost ~]$ dmesg | grep saa
saa7130/34: v4l2 driver version 0.2.14 loaded
saa7133[0]: found at 0000:01:06.0, rev: 208, irq: 19, latency: 32, mmio:
0xfdeff000
saa7133[0]: subsystem: 11bd:002e, board: Pinnacle PCTV 40i/50i/110i
(saa7133) [card=77,autodetected]
saa7133[0]: board init: gpio is 200e000
ir-kbd-i2c: Pinnacle PCTV detected at i2c-2/2-0047/ir0 [saa7133[0]]
saa7133[0]: i2c eeprom 00: bd 11 2e 00 54 20 1c 00 43 43 a9 1c 55 d2 b2
92
saa7133[0]: i2c eeprom 10: ff e0 60 02 ff 20 ff ff ff ff ff ff ff ff ff
ff
saa7133[0]: i2c eeprom 20: 01 2c 01 02 02 01 04 31 98 ff 00 a1 ff 22 00
c2
saa7133[0]: i2c eeprom 30: 96 ff 03 30 15 01 ff ff 0c 22 17 76 03 1f c7
7d
saa7133[0]: i2c eeprom 40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
tuner 2-004b: chip found @ 0x96 (saa7133[0])
saa7133[0]: registered device video0 [v4l2]
saa7133[0]: registered device vbi0
saa7133[0]: registered device radio0
After I did all this I launched TVTime and tried. Everything was working
perfectly. I could watch TV on my computer with sound and everything :)
Then I tried to start with MythTV. Everything was working here also
except for the sound was missing when I was watching LiveTV :( I will
try to explain what I have tried and what the result is.
Utilities/Setup->Setup->General->Audio
1. Everything default.
Audio output device: /dev/dsp
Mythfrontend output:
2006-05-15 20:33:43.717 Received a remote 'Clear Cache' request
2006-05-15 20:33:46.271 TV: Attempting to change from None to
WatchingLiveTV
2006-05-15 20:33:46.281 Using protocol version 26
2006-05-15 20:33:52.010 Opening audio device '/dev/dsp'.
2006-05-15 20:33:52.010 Opening OSS audio device '/dev/dsp'.
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x1bf
2006-05-15 20:33:52.083 VideoOutputXv Error: Couldn't get the color key
color,
probably due to a driver bug or limitation.
You might not get any video, but we'll try
anyway.
2. change audio output device to: ALSA:default
Output:
2006-05-15 20:35:25.848 RingBuf(/video/rec/1061_20060515203525.nuv):
Invalid file (fd 17) when opening '/video/rec/1061_20060515203525.nuv'.
12 retries remaining.
2006-05-15 20:35:27.039 Opening audio device 'default'.
ALSA lib control.c:817:(snd_ctl_open_noupdate) Invalid CTL /dev/mixer
2006-05-15 20:35:27.129 Mixer attach error -2: No such file or directory
Check Mixer Name in Setup: /dev/mixer
2006-05-15 20:35:27.131 NVP: Disabling Audio, reason is: Mixer attach
error -2: No such file or directory
Check Mixer Name in Setup: /dev/mixer
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x1bf
2006-05-15 20:35:27.312 VideoOutputXv Error: Couldn't get the color key
color,
probably due to a driver bug or limitation.
You might not get any video, but we'll try
anyway.
3. Unchecked Use internal volume control
Output:
2006-05-15 20:37:06.925 RingBuf(/video/rec/1061_20060515203706.nuv):
Invalid file (fd 17) when opening '/video/rec/1061_20060515203706.nuv'.
12 retries remaining.
2006-05-15 20:37:08.100 Opening audio device 'default'.
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x1bf
2006-05-15 20:37:08.190 VideoOutputXv Error: Couldn't get the color key
color,
probably due to a driver bug or limitation.
You might not get any video, but we'll try
anyway.
4. Change audio output device to ALSA:hw:0,0
2006-05-15 20:38:50.685 RingBuf(/video/rec/1061_20060515203850.nuv):
Invalid file (fd 17) when opening '/video/rec/1061_20060515203850.nuv'.
12 retries remaining.
2006-05-15 20:38:51.859 Opening audio device 'hw:0,0'.
2006-05-15 20:38:51.860 Rate doesn't match (requested 32000Hz, got
48000Hz)
2006-05-15 20:38:51.860 Unable to set ALSA parameters
2006-05-15 20:38:51.860 NVP: Disabling Audio, reason is: Unable to set
ALSA parameters
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x1bf
2006-05-15 20:38:51.961 VideoOutputXv Error: Couldn't get the color key
color,
probably due to a driver bug or limitation.
You might not get any video, but we'll try
anyway.
5. Change audio output device to ALSA:hw:0,2
2006-05-15 20:40:13.013 Opening audio device 'hw:0,2'.
2006-05-15 20:40:13.014 Rate doesn't match (requested 32000Hz, got
48000Hz)
2006-05-15 20:40:13.014 Unable to set ALSA parameters
2006-05-15 20:40:13.014 NVP: Disabling Audio, reason is: Unable to set
ALSA parameters
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x1bf
2006-05-15 20:40:13.071 VideoOutputXv Error: Couldn't get the color key
color,
probably due to a driver bug or limitation.
You might not get any video, but we'll try
anyway.
I think I have tried many other settings also but I haven't managed to
get sound output yet.
Also I get these messages, and I don't know what it means.
[mythtv at localhost ~]$ dmesg | grep OSS
application mythbackend uses obsolete OSS audio interface
application mythfrontend uses obsolete OSS audio interface
application mythbackend uses obsolete OSS audio interface
application mythfrontend uses obsolete OSS audio interface
application mythbackend uses obsolete OSS audio interface
application mythfrontend uses obsolete OSS audio interface
application mythbackend uses obsolete OSS audio interface
I would appreciate it I someone could help me with this because I don't
know how to fix it.
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