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Old 06-12-2012, 03:15 PM   #1
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Registered: Jun 2011
Distribution: ubuntu 11.04
Posts: 29

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sound stopped working on toshiba satellite running ubuntu 11.04

I'm running Ubuntu 11.04, kernel 2.6.38-10-generic on a toshiba satellite A 100 laptop.

I noticed my sound has stopped working. This seems to have happened after installing the latest upgrade package.

How to get my sound back ?

Here's excerpt of the output of lshw:

description: Audio device
product: IXP SB4x0 High Definition Audio Controller
vendor: ATI Technologies Inc
physical id: 14.2
bus info: pci@0000:00:14.2
version: 01
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=HDA Intel latency=64
resources: irq:40 memory:c0000000-c0003fff

And for lspci -vv:

00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)
Subsystem: Toshiba America Info Systems Device ff10
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64, Cache Line Size: 32 bytes
Interrupt: pin ? routed to IRQ 40
Region 0: Memory at c0000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel

Added June 16, 2012:

After I posted this I read a reply on one of the threads had not seen before. This reply advised using the "alsamixer" command. I did that and alsamixer opened. The master key was indeed muted. However, after unmuting it turning it up is impossible, the volume just stays at 00.

Any clue how to solve this?

Last edited by stuartjohn; 06-16-2012 at 03:37 AM. Reason: read reply about alsamixer
Old 06-23-2012, 08:43 AM   #2
Registered: Aug 2002
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