On 1/31/22 19:43, Eyal Lebedinsky wrote:
I am on f34 5.15.16-100.fc34.x86_64
This problem started recently (a few weeks, maybe a little longer?).
Initially I noticed audio hiccups when playing mythtv recordings. At
times there was also video noise
but not always.
I then found that playing audio from a network stream (with vlc) also
had hiccups. The sound would
stop and start, sometime even repeat a fraction of a second.
I now played a track from a local disk and the same issues were heard.
There are no messages to indicate a problem. I then used 'mplayer' which
has more console messages
and I now can see an issue:
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 58.134.100 (external)
Mismatching header version 58.130.100
AUDIO: 44100 Hz, 2 ch, s16le, 0.0 kbit/0.00% (ratio: 0->176400)
Selected audio codec: [ffflac] afm: ffmpeg (FFmpeg FLAC audio)
==========================================================================
[AO SDL] Samplerate: 44100Hz Channels: Stereo Format s16le
AO: [sdl] 44100Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A: 49.9 (49.8) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 49.9 (49.8) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 50.3 (50.3) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 50.3 (50.3) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 50.4 (50.3) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 50.4 (50.3) of 278.4 (04:38.4) 0.6%
A: 165.7 (02:45.7) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 165.7 (02:45.7) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 165.8 (02:45.7) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
A: 165.8 (02:45.7) of 278.4 (04:38.4) 0.6%
Audio device got stuck!
Here are the sound devices:
$ aplay --list-devices
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC887-VD Digital [ALC887-VD
Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
I get similar problems with [HDMI 3] and with [ALC887-VD Analog]
selected using pavucontrol.
lspci shows
Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
What can I do now to diagnose the problem?
One more data point: for a long time (many months) I had a problem where
the system locks up hard
needing a cold restart. There were no hiccups otherwise. It always had
mythtv playing or YouTube.
When locked the sound of the last second would loop continuously until
the reset. The video is frozen then.
Maybe related? This is a long running problem (happens once every few
months) but the audio stutter
is a recent, new issue.
TIA
Try VLC. Let us know.
Also, what is your CPU % usage. htop or equivalent
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