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Date: Tue, 1 May 2018 15:17:01 +0200 (CEST)
From: Wojciech Puchar <wojtek@puchar.net>
To: freebsd-hackers@freebsd.org
Subject: SOLVED Re: new laptop, no sound in spite of driver attaching 
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setting dev.hdac.0.polling=1 did a workaround of a problem.