no sound on HP pavillion dv6, after install of 10.04.

[richardmalter]

I had a similar problem with previous ubuntu release on the same machine: and again, I have no sound at all, looking for some advice please. Thank you.

[P4man]

have you checked its not simply a muted output?
to make sure press alt+f2 and enter

alsamixer

navigate it with your arrow keys, Make sure there is not a channel muted by accident, like PCM.

[richardmalter]

have you checked its not simply a muted output?
to make sure press alt+f2 and enter

alsamixer

navigate it with your arrow keys, Make sure there is not a channel muted by accident, like PCM.

Thanks. All channels at max. If I press F2 in the terminal that opens for ALSA, I have two sound cards:
0 [Intel ]: HDA-Intel - HDA Intel │
HDA Intel at 0xdd100000 irq 22 │
│ 1 [NVidia ]: HDA-Intel - HDA NVidia │
│ HDA NVidia at 0xd3000000 irq 1

Should I F6 select sound card choose one of these? or leave as default?

[P4man]

hmm. if you go system > preferences > sound > output i assume you have the same choice? What is it set to, and try the other one.

[richardmalter]

It displays Dummy Output that is selected and it seems I cannot deselect this. Below there is a L/R speaker drag bar that centred. Hardware lists nothing with no options. And input lists nothing with no options.

[vibra]

I have a system equals to yours, and I had no problem with sound. I had in past with 9.04/9.10. But after I format and install to 10.04, my sound works great.

sudo lshw:
description: Notebook
product: HP Pavilion dv6 Notebook PC
vendor: Hewlett-Packard


Can you provide us more info about your sound driver?