Estou usando o Ubuntu 17.04. Depois de usar um dispositivo de som externo via bluetooth (que funcionou bem) minhas configurações de som parecem quebradas:
sudo service bluetooth stop
amixer contents
fornece o seguinte resultado:
numid=19,iface=CARD,name='HDMI/DP,pcm=3 Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=off
numid=25,iface=CARD,name='HDMI/DP,pcm=7 Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=off
numid=31,iface=CARD,name='HDMI/DP,pcm=8 Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=off
numid=15,iface=CARD,name='Headphone Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=off
numid=14,iface=CARD,name='Internal Mic Phantom Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=on
numid=13,iface=CARD,name='Mic Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=off
numid=16,iface=CARD,name='Speaker Phantom Jack' ;
type=BOOLEAN,access=r-------,values=1 : values=on
numid=12,iface=MIXER,name='Master Playback Switch' ;
type=BOOLEAN,access=rw------,values=1 : values=on
numid=11,iface=MIXER,name='Master Playback Volume' ; ,
type=INTEGER,access=rw---R--,values=1,min=0,max=87,step=0 : values=67
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=2,iface=MIXER,name='Headphone Playback Switch' ;
type=BOOLEAN,access=rw------,values=2 : values=off,off
numid=1,iface=MIXER,name='Headphone Playback Volume' ;
type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0 : values=0,0
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=40,iface=MIXER,name='PCM Playback Volume' ;
type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0 : values=255,255
| dBscale-min=-51.00dB,step=0.20dB,mute=0
numid=9,iface=MIXER,name='Mic Boost Volume' ;
type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0 : values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=8,iface=MIXER,name='Capture Switch' ;
type=BOOLEAN,access=rw------,values=2 : values=on,on
numid=7,iface=MIXER,name='Capture Volume' ;
type=INTEGER,access=rw---R--,values=2,min=0,max=63,step=0 : values=38,38
| dBscale-min=-17.25dB,step=0.75dB,mute=0
numid=5,iface=MIXER,name='Loopback Mixing' ;
type=ENUMERATED,access=rw------,values=1,items=2 ; Item #0 'Disabled' ; Item #1 'Enabled' : values=0
numid=20,iface=MIXER,name='IEC958 Playback Con Mask' ;
type=IEC958,access=r-------,values=1 : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=26,iface=MIXER,name='IEC958 Playback Con Mask',index=1 ;
type=IEC958,access=r-------,values=1 : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=32,iface=MIXER,name='IEC958 Playback Con Mask',index=2 ;
type=IEC958,access=r-------,values=1 : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=21,iface=MIXER,name='IEC958 Playback Pro Mask' ;
type=IEC958,access=r-------,values=1 : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=27,iface=MIXER,name='IEC958 Playback Pro Mask',index=1 ;
type=IEC958,access=r-------,values=1 : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=33,iface=MIXER,name='IEC958 Playback Pro Mask',index=2 ;
type=IEC958,access=r-------,values=1 : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=22,iface=MIXER,name='IEC958 Playback Default' ;
type=IEC958,access=rw------,values=1 : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=28,iface=MIXER,name='IEC958 Playback Default',index=1 ;
type=IEC958,access=rw------,values=1 : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=34,iface=MIXER,name='IEC958 Playback Default',index=2 ;
type=IEC958,access=rw------,values=1 : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=23,iface=MIXER,name='IEC958 Playback Switch' ;
type=BOOLEAN,access=rw------,values=1 : values=off
numid=29,iface=MIXER,name='IEC958 Playback Switch',index=1 ;
type=BOOLEAN,access=rw------,values=1 : values=on
numid=35,iface=MIXER,name='IEC958 Playback Switch',index=2 ;
type=BOOLEAN,access=rw------,values=1 : values=on
numid=6,iface=MIXER,name='Auto-Mute Mode' ;
type=ENUMERATED,access=rw------,values=1,items=2 ; Item #0 'Disabled' ; Item #1 'Enabled' : values=1
numid=10,iface=MIXER,name='Internal Mic Boost Volume' ;
type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0 : values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=4,iface=MIXER,name='Speaker Playback Switch' ;
type=BOOLEAN,access=rw------,values=2 : values=on,on
numid=3,iface=MIXER,name='Speaker Playback Volume' ;
type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0 : values=87,87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=18,iface=PCM,name='Capture Channel Map' ;
type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=0,0
| container
| chmap-fixed=FL,FR
numid=17,iface=PCM,name='Playback Channel Map' ;
type=INTEGER,access=r----R--,values=2,min=0,max=36,step=0 : values=0,0
| container
| chmap-fixed=FL,FR
numid=24,iface=PCM,name='ELD',device=3 ;
type=BYTES,access=r--v----,values=0 : values=
numid=37,iface=PCM,name='Playback Channel Map',device=3 ;
type=INTEGER,access=rw---R--,values=8,min=0,max=36,step=0 : values=0,0,0,0,0,0,0,0
| container
| chmap-variable=FL,FR
numid=30,iface=PCM,name='ELD',device=7 ;
type=BYTES,access=r--v----,values=0 : values=
numid=38,iface=PCM,name='Playback Channel Map',device=7 ;
type=INTEGER,access=rw---R--,values=8,min=0,max=36,step=0 : values=0,0,0,0,0,0,0,0
| container
| chmap-variable=FL,FR
numid=36,iface=PCM,name='ELD',device=8 ;
type=BYTES,access=r--v----,values=0 : values=
numid=39,iface=PCM,name='Playback Channel Map',device=8 ;
type=INTEGER,access=rw---R--,values=8,min=0,max=36,step=0 : values=0,0,0,0,0,0,0,0
| container
| chmap-variable=FL,FR
Isso é um bug? Se sim, onde posso denunciá-lo? Como posso consertar isso?