AUDIO VERY LOW

[Achille Veniero]

I have a problem ... 

the sound on my netbook is really very low. 

how can I solve this problem? 

thanks

[Reinis Zumbergs]

Try switching to console tty1 (press Ctrl+Alt+F1) and write 

alsa_amixer sset Master 127

If that doesn't work, write

alsa_amixer -h

and play with the presented options a bit, untill you find which setting (instead of Master) and/or which volume (instead of 127) you need to set.