Who will be brave enough to solve my sound problem?!

[viking777]

Well, my chances of solving it are slim, although I do have an almost identical sound set up to yourself - which works perfectly incidentally. Nobody on the Ubuntu forum seems to have suggested trying the basic thing which is to open a terminal and type

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alsamixer

At the very least this will tell you what chip your sound card has (ALC888 I bet). Once it is open use the tab key to move the focus to View/All then use the left/right arrow keys to move across the screen. Ignore anything with the abbreviation 'Mic' in it and ignore anything with just a small blue box, but if anything else you see is set to 'MM' or anything with a tall blue bar is not set to 100<>100 then use the up/down arrow keys to set it to that.

The other thing to check is that (in Windows) you don't have any special keys selected to mute sound (eg my laptop will mute with Fn/F8 in windows, but not Linux) This should be reflected in in the output of alsamixer but sometimes you just don't know.

Lastly, and I admit this has more to do with blind prejudice than anything else, so only try it as a last resort, but when you are in Ubuntu open Synaptic type 'pulse' into the quicksearch bar and see if you have pulseaudio installed. If you do then remove it, in fact remove anything that has 'pulseaudio' in the description - PROVIDED - it doesn't threaten to remove anything you think you might want to use.

Well, there you have it, the sum total of my knowledge about Linux sound systems. Not much is it, but at least I had a try!