Thread: No Sound MacBook Pro 6-2

hi have followed instructions form
https://help.ubuntu.com/community/ma...-2/lucid#sound

seems working fine not getting sound.

alsa-base.conf looks follows, added last line:

code:

# autoloader aliases install sound-slot-0 /sbin/modprobe snd-card-0 install sound-slot-1 /sbin/modprobe snd-card-1 install sound-slot-2 /sbin/modprobe snd-card-2 install sound-slot-3 /sbin/modprobe snd-card-3 install sound-slot-4 /sbin/modprobe snd-card-4 install sound-slot-5 /sbin/modprobe snd-card-5 install sound-slot-6 /sbin/modprobe snd-card-6 install sound-slot-7 /sbin/modprobe snd-card-7  # cause optional modules loaded above generic modules install snd /sbin/modprobe --ignore-install snd $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe --quiet --use-blacklist snd-seq ; } # # workaround @ bug #499695 (reverted in ubuntu see lp #319505) install snd-pcm /sbin/modprobe --ignore-install snd-pcm $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; } install snd-mixer /sbin/modprobe --ignore-install snd-mixer $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-mixer-oss ; : ; } install snd-seq /sbin/modprobe --ignore-install snd-seq $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe --quiet --use-blacklist snd-seq-oss ; : ; } # install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; } # cause optional modules loaded above sound card driver modules install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-emu10k1-synth ; } install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist snd-seq ; }  # load saa7134-alsa instead of saa7134 (which gets dragged in anyway) install saa7134 /sbin/modprobe --ignore-install saa7134 $cmdline_opts && { /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; } # prevent abnormal drivers grabbing index 0 options bt87x index=-2 options cx88_alsa index=-2 options saa7134-alsa index=-2 options snd-atiixp-modem index=-2 options snd-intel8x0m index=-2 options snd-via82xx-modem index=-2s  options snd-usb-us122l index=-2 options snd-usb-usx2y index=-2 options snd-usb-caiaq index=-2 # ubuntu #62691, enable mpu snd-cmipci options snd-cmipci mpu_port=0x330 fm_port=0x388 # keep snd-pcsp being loaded first soundcard options snd-pcsp index=-2 options snd-hda-intel model=mbp55

managed fix it.

in case else facing similar issue.

install alsamixer
start alsamixer command line , unmute muted channels pressing "m" on muted channel.

not sure why case - strikes me odd default speaker channels muted , can't unmute them on gui.

have idea why case?

Forum The Ubuntu Forum Community Ubuntu Specialised Support Apple Hardware Users [SOLVED] No Sound MacBook Pro 6-2

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