From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 106529] dc=1 kernels somehow trigger a disconnect of an lg ultrawide monitor during DP link training while attempting a wakeup Date: Wed, 15 Aug 2018 17:29:15 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0343926642==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id C87616E394 for ; Wed, 15 Aug 2018 17:29:14 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0343926642== Content-Type: multipart/alternative; boundary="15343541541.8cb1Ff48a.25359" Content-Transfer-Encoding: 7bit --15343541541.8cb1Ff48a.25359 Date: Wed, 15 Aug 2018 17:29:14 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D106529 --- Comment #4 from Alex Deucher --- I suspect it may have something to do with the pulse timing from the monito= r.=20 Long pulses are for connect/disconnect events and short pulses are a feedba= ck mechanism for the monitor to the driver. I suspect the monitor is sending a short pulse that the driver is interpreting as a long pulse. --=20 You are receiving this mail because: You are the assignee for the bug.= --15343541541.8cb1Ff48a.25359 Date: Wed, 15 Aug 2018 17:29:14 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 4 on bug 10652= 9 from Alex Deucher
I suspect it may have something to do with the pulse timing fr=
om the monitor.=20
Long pulses are for connect/disconnect events and short pulses are a feedba=
ck
mechanism for the monitor to the driver.  I suspect the monitor is sending a
short pulse that the driver is interpreting as a long pulse.


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  • You are the assignee for the bug.
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