Problem: aplay under tty but no sound. aplay under xorg+pulse is ok. What has missed?
Tried store alsactl from xorg+pulse environment and restore to tty environment, restore without error messages, but still no sound.
When store again and compare found some part cannot be restored (see attached alsactl results highlight)
OS: Ubuntu 14.04, kernel 3.16.0-41, alsa 1.0.25, pulse 4.0 (under xorg)
Under both environment:
(1) aplay command used: aplay -D hw:0,7 test.wav
(2) File /etc/asound.conf and ~/.asoundrc do not exist.
Under tty environment:
(3) alsamixer was checked all channels have unmuted
------------------------------------------
Working - xorg+pulse:
------------------------------------------
...
control.7 {
iface CARD
name 'HDMI/DP,pcm=7 Jack'
value true
comment {
access read
type BOOLEAN
count 1
}
}
...
control.12 {
iface PCM
device 7
name ELD
value
'10000b006d40000f000002000000000030e500004c472d424448540a2020202020097f070d1f071507503d07c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
comment {
access 'read volatile'
type BYTES
count 95
}
}
------------------------------------------
Not Working - tty:
------------------------------------------
...
control.7 {
iface CARD
name 'HDMI/DP,pcm=7 Jack'
value false
comment {
access read
type BOOLEAN
count 1
}
}
...
control.12 {
iface PCM
device 7
name ELD
value ''
comment {
access 'read volatile'
type BYTES
count 0
}
}
------------------------------------------
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