From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 100745] amdgpu fails to wake up DisplayPort DELL monitors with 'clock recovery failed' Date: Wed, 22 Nov 2017 18:41:28 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0467807352==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 352766E3BC for ; Wed, 22 Nov 2017 18:41:28 +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 --===============0467807352== Content-Type: multipart/alternative; boundary="15113760881.48328ee9C.17833"; charset="UTF-8" --15113760881.48328ee9C.17833 Date: Wed, 22 Nov 2017 18:41:28 +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=3D100745 --- Comment #8 from Benjamin Bellec --- I hit the same problem today after enabling amdgpu.dc=3D1 The screen doesn't light up at all if I boot the kernel with amdgpu.dc=3D1 Config is: Fedora 27 + kernel 4.15.0-0.rc0.git7.1.fc28.x86_64 Radeon R9 380X Dell U2414H dmesg error is: kernel: [drm:dm_logger_write [amdgpu]] *ERROR* perform_clock_recovery_seque= nce: Link Training Error, could not get CR after 100 tr= ies. --=20 You are receiving this mail because: You are the assignee for the bug.= --15113760881.48328ee9C.17833 Date: Wed, 22 Nov 2017 18:41:28 +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 # 8 on bug 10074= 5 from Benjamin Bellec 
I hit the same problem today after enabling amdgpu.dc=3D1
The screen doesn't light up at all if I boot the kernel with amdgpu.dc=3D1

Config is:
Fedora 27 + kernel 4.15.0-0.rc0.git7.1.fc28.x86_64
Radeon R9 380X
Dell U2414H


dmesg error is:
kernel: [drm:dm_logger_write [amdgpu]] *ERROR* perform_clock_recovery_seque=
nce:
Link Training Error, could not                          get CR after 100 tr=
ies.

You are receiving this mail because:
  • You are the assignee for the bug.
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