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Thread: digital stereo sound not working

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hi. i'm new ubuntu, , not well-versed in computer programming, etc., willing try new things. bought new laptop couple of weeks ago, toshiba t-135, , installed ubuntu 10.04. right away, sound worked , heard cool ubuntu drums. however, first glitch came when couldn't connect home wireless network, fixed following advice on these forums. next, realized needed install flash in firefox. no problem, got installed. i'm having mind-boggling sound problem. @ 1 point sound playing both through regular speakers , headphones @ same time, , muted sound while (was in library!) , turned on later, couldn't come on via speakers or headphones. after reading advice on these forums , trying different things didn't work, today realized if switch settings in sound preferences analog instead of digital, have sound. question now, how can have digital sound again?

in advance help. info:

christine@christine-laptop:~$ uname -a
linux christine-laptop 2.6.32-22-generic-pae #36-ubuntu smp thu jun 3 23:14:23 utc 2010 i686 gnu/linux

christine@christine-laptop:~$ aplay -l
**** list of playback hardware devices ****
card 0: intel [hda intel], device 0: conexant analog [conexant analog]
subdevices: 1/1
subdevice #0: subdevice #0
card 0: intel [hda intel], device 1: conexant digital [conexant digital]
subdevices: 1/1
subdevice #0: subdevice #0
card 0: intel [hda intel], device 3: intel hdmi [intel hdmi]
subdevices: 1/1
subdevice #0: subdevice #0

christine@christine-laptop:~$ cat /proc/asound/version
advanced linux sound architecture driver version 1.0.21.

christine@christine-laptop:~$ head -n 1 /proc/asound/card*/codec#*
==> /proc/asound/card0/codec#0 <==
codec: conexant cx20582 (pebble)
==> /proc/asound/card0/codec#1 <==
codec: intel g45 devctg



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