I am not using spdif. Standard 3.5mm analog stereo to a 2.1 computer
speaker system.
Steps to reproduce:
1. Play any audio.
2. Listen. You can make it out, but the higher frequencies are all distorted,
like a crackly whine.
$ speaker-test -c 8 -t wav -D hw:0,0
speaker-test 1.0.25
Playback
Raymond (superquad-vortex2) wrote:
are you playing 5.1 and down mix to stereo by pulseaudio ?
I don't think so. System Settings - Sound - Output is set to Built-
in Audio Analog Stereo
does it happen when you are using alsa?
I don't know how to test that.
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You received this bug
$ speaker-test -c 2 -t wav -D hw:0,0
speaker-test 1.0.25
Playback device is hw:0,0
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 16384
Period size range from 32 to 8192
Using max buffer size 16384
Periods = 4
Raymond (superquad-vortex2) wrote:
it is strange that only headphone support Jack detection but the front
Michael does not ( Misc = NO_PRESENCE)
do your computer chassis have a hda front panel with Jack detection
It's an Intel motherboard I got from work with no documentation or
packaging
$ cat /sys/class/sound/hwC0D2/init_pin_configs
0x0a 0x0221401f
0x0b 0x02a19040
0x0c 0x40fd
0x0d 0x01114010
0x0e 0x01119012
0x0f 0x01113011
0x10 0x40fc
0x11 0x40fb
0x12 0x40fa
0x21 0x40f9
0x22 0x40ff
$ cat /sys/class/sound/hwC0D2/driver_pin_configs
0x0a 0x0221401f
0x0b
Raymond (superquad-vortex2) wrote:
do you mean the distortion also happen in running speaker-test ?
Yes. Any time any audio plays, it's distorted.
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Public bug reported:
Ever since a recent software update (within the last month or so), audio
quality is terrible. I've plugged in various sets of speakers, and the
quality is consistent, so it's definitely a software bug.
The distortion is in the higher frequencies, and might be describe as a
Bug #553473 appears similar, although it involves a different
motherboard, and the workaround mentioned in that bug doesn't seem to
work. When I run HDA Analyzer as root, I don't see an enable checkbox
for Node[0x02] AUD_OUT (or any other channel for that matter).
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