7

Ok, So I’ve always had trouble with enabling 5.1 in Ubuntu. Running alsamixer:

I have: Master, Headphones, PCM, Front, Front Mi, Front Mi, Surround, Center. All are at 100%

Card:HDA Intel

Chip:Realtek ALC888 (This is my onboard sound, Its a dell studio, with 7.1 integrated sound)

Running speaker-test -c6 -twav I only get the front 2 speakers (Right/Left) making any noise. The others make no noise at all.

I have no other sound card to use as all my PCI slots are used up.

Daemon.conf:

; daemonize = no
; fail = yes
; allow-module-loading = yes
; allow-exit = yes
; use-pid-file = yes
; system-instance = no
; enable-shm = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
; lock-memory = no
; cpu-limit = no

; high-priority = yes
; nice-level = -11

; realtime-scheduling = yes
; realtime-priority = 5

; exit-idle-time = 20
; scache-idle-time = 20

; dl-search-path = (depends on architecture)

; load-default-script-file = yes
; default-script-file = 

; log-target = auto
; log-level = notice
; log-meta = no
; log-time = no
; log-backtrace = 0

resample-method = speex-float-1
; enable-remixing = yes
; enable-lfe-remixing = no

flat-volumes = no

; rlimit-fsize = -1
; rlimit-data = -1
; rlimit-stack = -1
; rlimit-core = -1
; rlimit-as = -1
; rlimit-rss = -1
; rlimit-nproc = -1
; rlimit-nofile = 256
; rlimit-memlock = -1
; rlimit-locks = -1
; rlimit-sigpending = -1
; rlimit-msgqueue = -1
; rlimit-nice = 31
; rlimit-rtprio = 9
; rlimit-rttime = 1000000

; default-sample-format = s16le
; default-sample-rate = 44100
; default-sample-channels = 6
; default-channel-map = front-left,front-right

default-fragments = 8
default-fragment-size-msec = 10
  • Could help if you make your question a little more detailed than saying "OMFG this works better in windows!!". What does your setting looks like? Is your hardware shown correctly in the sound preferences menu? – tutuca Aug 9 '10 at 1:38
  • Please see the comments on the answers and update the question with new information. – Li Lo Aug 10 '10 at 0:35
  • @tutuca - Alright calm down. It was just meant as a joke. @Li Lo - Will do. – Will Aug 10 '10 at 0:43
  • In the "Output" tab of Sound Preferences do you have a connector like in this image? imgur.com/CIdor.png – Li Lo Aug 10 '10 at 1:09
  • No, It looks like this: yfrog.com/5nselection001p By The way, Does this look right: "default-channel-map = front-left,front-right" Surely there should be rear-right center etc? – Will Aug 10 '10 at 10:08
2

You could try this in terminal:

sudo alsamixer

You should see separate "volume" sections (eg, Front, Line-In, Center/LFE, etc) that you can mute and unmute (pressing the 'm' key) or change the volume with the arrow keys.

If that doesn't work, then would you gladly clarify if you have a sound card (other than your motherboards sound). :D

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  • Doesn't work, Its set as 5.1 in the "Sound" menu and all the channels are turned up fully in alsamixer. Using "speaker-test -Dplug:surround51 -c6 -l1 -twav" I can only hear the front left and right and in daemon.conf the default-sample-channels=6. I do have an audigy SB but the pci slot is taken up by my 9800gt... Thanks – Will Aug 7 '10 at 15:50
  • Try "speaker-test -c6 -twav" i.e. without selecting the device. – Li Lo Aug 7 '10 at 22:33
  • ONly the front 2 work again. No sound in any of the others – Will Aug 10 '10 at 15:14
1

Try this:

Select sound preferences from sound indicator menu, go to hardware tab and select the applicable surround option from the profile menu.

If all goes well, you should have a working 5.1 sound.

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  • Yep, that doesn't work ;) – Will Aug 5 '10 at 21:34
  • What, exactly, doesn't work. How does it behave? – Li Lo Aug 7 '10 at 13:11
  • Also which application are you trying to use to access the 5.1 sound? – Ressu Aug 9 '10 at 4:45

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