From nobody Mon Jan 03 22:08:06 2022 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id D4937192C50E for ; Mon, 3 Jan 2022 22:08:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JSVHV3kVMz4Trg for ; Mon, 3 Jan 2022 22:08:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5FF465604 for ; Mon, 3 Jan 2022 22:08:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 203M86sL083892 for ; Mon, 3 Jan 2022 22:08:06 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 203M86TD083891 for bugs@FreeBSD.org; Mon, 3 Jan 2022 22:08:06 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 260898] audible skips and video jitter during video playback Date: Mon, 03 Jan 2022 22:08:06 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.2-STABLE X-Bugzilla-Keywords: needs-qa X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: bobf@mrp3.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1641247686; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uthqimPiTk6sZU4MoZJCxX3NVNVd7ssYrNtP3bfP2ZA=; b=CuEF5iCt003CFA1B/EyG0OvZlpzsYRReea3jeUVfVBkawIaI9EWU8JRfxFmHfV03OhDM7T 4wsMaUr1MUmyMIiK0hovgSZ3ze65BhHvZ0sOJR/g1lWIx0DCuPIHbBz8mV9GlU6MM0+k0I dCNIfbb4/KpBIaM30AvijcD3ryStB2Llw7xMHe61DJTSV5jT87NdmC33r2F86ZAlpTcU/t WXuQwzPQjWxX/armDMovCt2qCCQPdMIBYgW/2fuvCCwQQUTEKKENUtHgI9yrKHJqmsxdP5 BQUVKjOVnYsvaOlqa4CJBFrMZ7aQsPwCkb6I9lXQWmxv7Fx5Hvc40yRFH9xsiw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1641247686; a=rsa-sha256; cv=none; b=cfHtvN2owd5SUo55HWKWMTqBzlk5wxSW9PiztLcWsKURRw37DCF5IOnqacs3SjnETpRtK3 FbXjlgnwS41qRrUl90YK0MVmD9vlyFoWAVR5mpMj2KblUeg1ZhcPVa7CiqOQ8FuhO5lZQ7 MOVQRs4whywINAJK5v03pzClA14vyysgPNse5/8asmQ2a6XzrgacqICxGWlWq7h72BYZhP aruh0pGj2U0E2/cY1wqb7mAtNEoYxzY+NLRoDhedoyfdA0jjD/Tj0MkuNeMP6XoODbbn1d pEpyRg/34D0ja5YkJbASE58XqYd5Lm9IdvueqCg/sUvBtpTkeo30tugcfwv3ZA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D260898 --- Comment #12 from Bob Frazier --- (In reply to Andriy Gapon from comment #10) re: test if changing sysctl machdep.idle to mwait helps I did this repeatedly, back and forth. The best way to describe the result= s is to say that while set to 'acpi' the random audio errors usually presented themselves, and while set to 'mwait' they usually did not. However, in one case, I still noticed a rather prominent audible distortion while machdep.i= dle was set to 'mwait'. In the few tests that I did perform 'mwait' seemed to correlate with the ti= ming errors and distortion happening less, but not completely eliminated. as an additional test, I am stopping powerd, setting the event timer to HPE= T, and also the mechdep.idle to 'mwait'. I will let audio stream for a while = (an hour or so) and see if I can hear any audible distortion. In my previous testing it usually happens at least once within about 10 minutes of streami= ng audio. So it will probably be a good overall test where I do not have to p= ay constant attention to it. I'll post later with the results. --=20 You are receiving this mail because: You are the assignee for the bug.=