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Firstly, im a complete Linux newb, so please bare with me...

After getting my computer upgraded to Linux, I got my first sound system in years - nice big loud subwoofer. However, when the audio output gets too loud, its breaks up and skips, meaning that I cant really listen to anything at 100% volume or more.. It also depends on the file being played, so i often have to go running back to the computer after a new track comes on which is louder than the others and starts to skip. So i cant just let my audio play, im constantly having to adjust it to stop the skipping.

Additionally, I have noticed recently when playing video files, if the audio suddenly jumps up (like theres an explosion/gunshot etc) the entire sound system mutes itself, and I have to go into the volume control panel to unmute it.

Whilst looking around the volume control panel, I noticed something interesting - when audio files skip, in the audio devices tab, the Port selection flickers from 'Analogue output' to 'Headphones' then back again, without me touching it.

Im not sure what more information may be required to help me with this issue, but please let me know - i appreciate any input to help fix this! I dont remember which Ubuntu version im running (>_> sorry) and dont know how to check that for you so, let me know and ill find out. Thanks lot!

EDIT

product: NM10/ICH7 Family High Definition Audio Controller

driver=snd_hda_intel latency=0

Thanks!

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Knowing your Ubuntu version would help. Could you open the terminal (either from the menu, Dash or with Ctrl+Alt+T) and type/paste lsb_release -d and hit Enter? –  papukaija Jul 7 '13 at 12:50
    
Thanks! Its Ubuntu 13.04 –  jan_jan64 Jul 7 '13 at 13:45
    
Thanks. Could you also run lshw -c multimedia from the terminal as it gives details about your sound card? Please don't post the whole output as it can be quite long, the product and driver (under configuration) lines should be enough (you'll need to use Ctrl+Shift+V to copy from the terminal). –  papukaija Jul 7 '13 at 17:28
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