Hi,
So I reinstalled version 5.4 but problem is still there. Anyway, I jumped from a much older version to 5.5 so I can't say if it is or it's not related with displaylink.
What I noticed, is that the problem occurs in winamp when screen is moving quickly, especially with google chrome but not only. Noise persists if i close winamp and stop after a few seconds. Setting Winamp process to 'real time' seems to reduce the problem instances. It then seems to have a link with processor load, bu the processor is an Intel Core 2 duo 2,66 Ghz not doing something else.
I can't test audio avoiding VGP-UPR1 and display link as my Vaio as no audio direct output.
Not finding a good reason, I just update this post just in case someone else encounter the same problem.
Olivier
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