ubuntu sound help - please

[john_m_gtr]

can anybody please help me as i am the most troll like caveman ubuntu user ever. could you please respond in the most basic of computer terminology that i may be able to understand. i really am pretty useless when it comes to computers. thanks in advance

the problem is ...

my speakers randomly cut out last night whilst i watching a video on youtube around 10 mins into the video, fine for months and months and then suddenly no sound. .. so i chose another video on youtube ( a foofighters music video) and the sound was fine.

so i then clicked back on my internet arrow and tried to watch the previous video again. then only 2 minutes into the video my sound stopped working again. i then restarted my computer and still had no sound.

also now when i click on system>preferences> sound and then choose the hardware tab it is a pink box instead of a white one and there is nothing in it at all to choose. the output setting is a dummy output stereo ( whatever that is ).

now if i restart my computer... which i will do now .... done ... well that was a fail, it stayed the same in my sound options,

sometimes when i shut down and restart there are options to choose from when i go to system>preferences>sound , in both the hardware tab and in the output tab, ( not sure what they are but there is usually stuff i can click on ) , anyway when i shut down and restart it will give me like a mad bongo noise when i log on as the user, so i know the speakers themselves are fine.. i click on my internet browser go to youtube again choose a song and it will play for at the most 2-3 minutes then silence again, suddenly cutting off. then when i check my sound options again they have all gone blank again.i dont know whats happening to it.

i know that was quite a long and stupid story but if you have made it this far down i would really appreciate any help you could give or just an idea of what is going on, like i said i am really new to linux and i am generally useless with computers, i know how to get onto terminal and thats about it.

anyway once again if anybody could help please i would appreciate it immensely.

[MikeTbob]

Hello and Welcome.
I took the liberty of deleting your duplicate post because it's against forum rules.
http://www.linuxforums.org/forum/lin...ums-rules.html
Anyhoo, Can you open a terminal window, issue these commands and post your results please?

sudo lspci -knn

sudo aplay -a

sudo lsmod

[john_m_gtr]

sorry for repost i made... yes i will get terminal up now and post what it says

[john_m_gtr]

gemma@gemma-desktop:~$ sudo lspci -knn
00:00.0 Host bridge [0600]: VIA Technologies, Inc. VT8378 [KM400/A] Chipset Host Bridge [1106:3205]
	Kernel driver in use: agpgart-via
	Kernel modules: via-agp
00:01.0 PCI bridge [0604]: VIA Technologies, Inc. VT8237/VX700 PCI Bridge [1106:b198]
	Kernel modules: shpchp
00:0c.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10)
	Kernel driver in use: 8139too
	Kernel modules: 8139too, 8139cp
00:0f.0 RAID bus controller [0104]: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller [1106:3149] (rev 80)
	Kernel driver in use: sata_via
	Kernel modules: sata_via
00:0f.1 IDE interface [0101]: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE [1106:0571] (rev 06)
	Kernel driver in use: pata_via
	Kernel modules: pata_via
00:10.0 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 81)
	Kernel driver in use: uhci_hcd
00:10.1 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 81)
	Kernel driver in use: uhci_hcd
00:10.2 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 81)
	Kernel driver in use: uhci_hcd
00:10.3 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 81)
	Kernel driver in use: uhci_hcd
00:10.4 USB Controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 86)
	Kernel driver in use: ehci_hcd
00:11.0 ISA bridge [0601]: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South] [1106:3227]
	Kernel modules: i2c-viapro
00:11.5 Multimedia audio controller [0401]: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller [1106:3059] (rev 60)
	Kernel driver in use: VIA 82xx Audio
	Kernel modules: snd-via82xx
01:00.0 VGA compatible controller [0300]: nVidia Corporation NV5 [RIVA TNT2/TNT2 Pro] [10de:0028] (rev 15)
	Kernel driver in use: nouveau
	Kernel modules: nvidiafb, rivafb, nouveau

gemma@gemma-desktop:~$ sudo aplay -a
aplay: invalid option -- 'a'
Try `aplay --help' for more information.

gemma@gemma-desktop:~$ sudo lsmod
Module                  Size  Used by
snd_seq_dummy           1338  0 
snd_seq_oss            26722  0 
snd_seq_midi            4557  0 
snd_seq_midi_event      6003  2 snd_seq_oss,snd_seq_midi
snd_seq                47263  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_pcm_oss            35308  0 
snd_mixer_oss          13746  1 snd_pcm_oss
binfmt_misc             6587  1 
fbcon                  35102  71 
tileblit                2031  1 fbcon
font                    7557  1 fbcon
bitblit                 4707  1 fbcon
softcursor              1189  1 bitblit
vga16fb                11385  0 
vgastate                8961  1 vga16fb
snd_via82xx            20058  0 
gameport                9089  1 snd_via82xx
snd_ac97_codec        100646  1 snd_via82xx
ac97_bus                1002  1 snd_ac97_codec
snd_pcm                70694  3 snd_pcm_oss,snd_via82xx,snd_ac97_codec
snd_page_alloc          7076  2 snd_via82xx,snd_pcm
snd_mpu401_uart         5617  1 snd_via82xx
snd_rawmidi            19056  2 snd_seq_midi,snd_mpu401_uart
nouveau               467048  2 
snd_timer              19098  2 snd_seq,snd_pcm
snd_seq_device          5700  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi
ttm                    49943  1 nouveau
drm_kms_helper         29329  1 nouveau
ppdev                   5259  0 
snd                    54180  11 snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_via82xx,snd_ac97_codec,snd_pcm,snd_mpu401_uart,snd_rawmidi,snd_timer,snd_seq_device
drm                   162409  4 nouveau,ttm,drm_kms_helper
i2c_algo_bit            5028  1 nouveau
parport_pc             25962  1 
via_agp                 5310  1 
psmouse                63245  0 
serio_raw               3978  0 
i2c_viapro              5573  0 
soundcore               6620  1 snd
shpchp                 28835  0 
agpgart                31724  3 ttm,drm,via_agp
lp                      7028  0 
parport                32635  3 ppdev,parport_pc,lp
8139too                18545  0 
8139cp                 16186  0 
pata_via                7272  2 
sata_via                7009  0 
mii                     4381  2 8139too,8139cp
floppy                 53016  0 
gemma@gemma-desktop:~$

[john_m_gtr]

thats what come up when i typred in those commands, i have no idea what any of it means though , thanks for trying to help me by the way

thanks 4 edit i guess i should of thought to separate them.

[MikeTbob]

thats what come up when i typred in those commands, i have no idea what any of it means though , thanks for trying to help me by the way

Ok, I'll explain.
The first command, lspci -knn tell us what is inside your machine. Soundcards, Video, and a whole bunch of other stuff. the -knn part tells which module/driver is in use by each device.

00:11.5 Multimedia audio controller [0401]: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller [1106:3059] (rev 60)
	Kernel driver in use: VIA 82xx Audio
	Kernel modules: snd-via82xx

That's the soundcard and the module/driver in use and sadly, it all looks good to me.
aplay should have listed your devices also but I gave you the wrong command, it should have been:

sudo aplay -l

And finally lsmod command shows us all module/drivers that are loaded at boot time.
Like I said, I don't really see anything that jumps out at me, can you verify the speakers work on another machine?
Check alsamixer and make sure nothing is muted.

sudo alsamixer

[john_m_gtr]

yeah i got these speakers off my brother and they work fine they are edifier speakers with a amp.

and yeah i tried the alsamixer also and everything seems fine on there. i just dont understand why it would stop working so suddenly. i noticed other user commenting on the same video i was watching on youtube saying that their sound had stopped working also around 10 minutes into the same video that i was watching when it first stopped working. do you think this could be a cause/?

whilst you were offline i looked on google again to try and find some more help and followed some steps where i believe i rebooted the computer.( although im not sure, ) and this does not seem to of helped either.

i also found another thread on this sight where some1 had a simmilar problem and i followed the steps somebody had asked them to take and this seemed to get my speakers working for 2 minutes before they went off again.so i really dont know whats up with it,

Many thanks for your help anyway, John