networks1 at cox
Jan 25, 2010, 5:13 PM
Post #1 of 1
(310 views)
Permalink
|
|
Hosed audio+Prebuffering pause=PLEASE HEP ME! [was Gravely audio]
|
|
Spent a perfectly good weekend trying to fix this to no avail. Posting some
new details in hopes that someone will take pity on me and offer some help.
No responses on fedora or alsa lists.
Again problem is choppy audio on playback of recorded shows. Happens on the
Totem player too, not just Myth. Watched a recorded show all the way through
on myth. At some point chop stops and audio gets progressively out of sync.
Rewind restores chop and sync for a while. Log shows WriteAudio: buffer
underrun and repeated NVP(0): prebuffering pause.
Have tried all the following then undone them because they didn't work:
Installed /etc/asound.conf per
http://www.mythtv.org/wiki/Configuring_Digital_Sound
Fixes under audio issues at
http://www.mythtv.org/wiki/Troubleshooting:Prebuffering_pause
Tried Pulseaudio fixes and workarounds at
http://fedorasolved.org/Members/fenris02/pulseaudio-fixes-and-workarounds
Regarding this, when I try to play noise per the troubleshooting section at
the bottom, i.e. cat /dev/urandom > /dev/dsp no noise is generated. However
aplay /usr/share/sounds/ekiga/ring.wav works
Tried the asoundrc settings here http://www.pulseaudio.org/wiki/PerfectSetup
and setting the output device to ALSA:pulse, result = no sound.
No idea what else to try.
I've posted recent frontend log items below, and the output of the alsa
audio debug data below that.
====================================================================
2010-01-23 10:38:45.156 TV: StartPlayer(0, Watching WatchingPreRecorded,
main) -- begin
2010-01-23 10:38:45.371 AFD: Opened codec 0x469b990, id(H264) type(Video)
2010-01-23 10:38:45.371 AFD: codec AAC has 2 channels
2010-01-23 10:38:45.371 AFD: Opened codec 0x4697110, id(AAC) type(Audio)
2010-01-23 10:38:45.373 Opening audio device 'front'. ch 2(2) sr 48000
2010-01-23 10:38:45.373 Opening ALSA audio device 'front'.
2010-01-23 10:38:45.441 Mixer unable to find control PCM
2010-01-23 10:38:45.441 Mixer unable to find control PCM
2010-01-23 10:38:45.513 WriteAudio: buffer underrun
2010-01-23 10:38:45.596 OSD Theme Dimensions W: 1280 H: 720
2010-01-23 10:38:46.205 TV: StartPlayer(0, Watching WatchingPreRecorded,
main) -- end ok
2010-01-23 10:38:46.206 TV: Changing from None to Watching
WatchingPreRecorded
2010-01-23 10:38:46.208 New DB connection, total: 3
2010-01-23 10:38:46.208 Using realtime priority.
2010-01-23 10:38:46.210 Connected to database 'mythconverg' at host: mythtv
2010-01-23 10:38:46.211 Video timing method: USleep with busy wait
2010-01-23 10:38:46.230 ScreenSaverX11Private: DPMS Deactivated 1
2010-01-23 10:38:46.312 NVP(0): prebuffering pause
2010-01-23 10:38:46.352 NVP(0): prebuffering pause
2010-01-23 10:38:46.388 NVP(0): prebuffering pause
2010-01-23 10:38:46.428 NVP(0): prebuffering pause
==========================================================================
http://alsa.opensrc.org/index.php/Aadebug
ALSA Audio Debug v0.1.0 - Fri Jan 22 15:09:31 MST 2010
http://alsa.opensrc.org/aadebug
http://www.gnu.org/licenses/gpl.txt
Kernel ----------------------------------------------------
Linux mythtv 2.6.31.12-174.2.3.fc12.x86_64 #1 SMP Mon Jan 18 19:52:07 UTC
2010 x86_64 x86_64 x86_64 GNU/Linux
Loaded Modules --------------------------------------------
snd_hda_codec_realtek 281380 1
snd_hda_intel 30360 2
snd_hda_codec 72832 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 9224 1 snd_hda_codec
snd_seq 58080 0
snd_seq_device 7620 1 snd_seq
snd_pcm 83144 2 snd_hda_intel,snd_hda_codec
snd_timer 22608 2 snd_seq,snd_pcm
snd 67592 12
snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_
device,snd_pcm,snd_timer
snd_page_alloc 9568 2 snd_hda_intel,snd_pcm
Modprobe Conf ---------------------------------------------
Warning: module config file does not exist
This means any kernel modules will not be auto loaded
See your linux distro docs on how to create this file
Proc Asound -----------------------------------------------
Advanced Linux Sound Architecture Driver Version 1.0.20.
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xea400000 irq 22
2: : timer
3: : sequencer
4: [ 0- 2]: digital audio capture
5: [ 0- 1]: digital audio playback
6: [ 0- 1]: digital audio capture
7: [ 0- 0]: digital audio playback
8: [ 0- 0]: digital audio capture
9: [ 0- 2]: hardware dependent
10: [ 0] : control
00-02: HDA Codec 2
00-00: ALC889A Analog : ALC889A Analog : playback 1 : capture 1
00-01: ALC889A Digital : ALC889A Digital : playback 1 : capture 1
00-02: ALC889A Analog : ALC889A Analog : capture 1
Client info
cur clients : 1
peak clients : 1
max clients : 192
Client 0 : "System" [Kernel]
Port 0 : "Timer" (Rwe-)
Port 1 : "Announce" (R-e-)
Client 14 : "Midi Through" [Kernel]
Port 0 : "Midi Through Port-0" (RWe-)
Dev Snd ---------------------------------------------------
by-path hwC0D2 pcmC0D0p pcmC0D1p seq
controlC0 pcmC0D0c pcmC0D1c pcmC0D2c timer
CPU -------------------------------------------------------
model name : Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
cpu MHz : 2000.000
model name : Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
cpu MHz : 2000.000
RAM -------------------------------------------------------
MemTotal: 4057844 kB
SwapTotal: 8191992 kB
Hardware --------------------------------------------------
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev
03)
http://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture
[root [at] mytht mythtv]# ls -l /dev/snd
total 0
drwxr-xr-x 2 root root 60 2010-01-21 19:57 by-path
crw-rw----+ 1 root audio 116, 10 2010-01-21 19:57 controlC0
crw-rw----+ 1 root audio 116, 9 2010-01-21 19:57 hwC0D2
crw-rw----+ 1 root audio 116, 8 2010-01-22 15:04 pcmC0D0c
crw-rw----+ 1 root audio 116, 7 2010-01-22 14:48 pcmC0D0p
crw-rw----+ 1 root audio 116, 6 2010-01-21 19:58 pcmC0D1c
crw-rw----+ 1 root audio 116, 5 2010-01-21 19:58 pcmC0D1p
crw-rw----+ 1 root audio 116, 4 2010-01-21 19:57 pcmC0D2c
crw-rw----+ 1 root audio 116, 3 2010-01-21 19:57 seq
crw-rw----+ 1 root audio 116, 2 2010-01-21 19:57 timer
[root [at] mytht mythtv]# ls -l /sys/module/snd/holders
total 0
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_hda_codec ->
../../snd_hda_codec
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_hda_codec_realtek ->
../../snd_hda_codec_realtek
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_hda_intel ->
../../snd_hda_intel
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_hwdep -> ../../snd_hwdep
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_pcm -> ../../snd_pcm
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_seq -> ../../snd_seq
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_seq_device ->
../../snd_seq_device
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_seq_dummy ->
../../snd_seq_dummy
lrwxrwxrwx 1 root root 0 2010-01-22 15:22 snd_timer -> ../../snd_timer
[root [at] mytht mythtv]# lsmod|grep '^snd' | column -t
snd_seq_dummy 3428 0
snd_hda_codec_realtek 281380 1
snd_hda_intel 30360 2
snd_hda_codec 72832 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 9224 1 snd_hda_codec
snd_seq 58080 1 snd_seq_dummy
snd_seq_device 7620 2 snd_seq_dummy,snd_seq
snd_pcm 83144 2 snd_hda_intel,snd_hda_codec
snd_timer 22608 2 snd_seq,snd_pcm
snd 67592 13
snd_seq_dummy,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,sn
d_seq,snd_seq_device,snd_pcm,snd_timer
snd_page_alloc 9568 2 snd_hda_intel,snd_pcm
|
