Comment 7 for bug 177235

I had exactly the same problem, and found by chance exactly the same solution. I thought it was my MP3-player the cause of the issue, because it was happening in both my ubuntu x64 laptop and my ubuntu x64 desktop. The same machines booting windows have no problems.

For reference, here's the MP3-player thread I opened:
http://forums.sandisk.com/sansa/board/message?board.id=clip&message.id=8869#M8869