From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 102646] Screen flickering under amdgpu-experimental [buggy auto power profile] Date: Wed, 27 Mar 2019 19:03:58 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1217577772==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 467DE6E22D for ; Wed, 27 Mar 2019 19:03:59 +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 --===============1217577772== Content-Type: multipart/alternative; boundary="15537134393.3E1f.16880" Content-Transfer-Encoding: 7bit --15537134393.3E1f.16880 Date: Wed, 27 Mar 2019 19:03:59 +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=3D102646 --- Comment #73 from Bastian --- (In reply to Bastian from comment #69) > Distro/Kernel: Ubuntu 18.04.2/5.0.2 > GPU AMD: Readon RX570 - Mesa 19.0 > Display: Iiyama G23530HSU 75hz > Desktop: Gnome >=20 > video: https://www.youtube.com/watch?v=3DgNJ2kJ8hsHA >=20 > Have the same problem as the op. The problems started with the 4.20 Kerne= ls. > Had not this problem with 4.19 LTS Kernels. The flickering doesn't appear= on > wayland if I choose only 60hz. On xorg it is irrelevant how much hz I use, > it flickers regardless.=20 >=20 > sudo -i > echo "manual" > > /sys/class/drm/card0/device/power_dpm_force_performance_level=20 > echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk >=20 > Fixes the flickering. Just a quick update. After switching from HDMI to DisplayPort the issue resolved itself for me. --=20 You are receiving this mail because: You are the assignee for the bug.= --15537134393.3E1f.16880 Date: Wed, 27 Mar 2019 19:03:59 +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

Comme= nt # 73 on bug 10264= 6 from Bastian 
(In reply to Bastian from comment #69)
> Distro/Kernel: Ubuntu 18.04.2/5.0.2
> GPU AMD:       Readon RX570 - Mesa 19.0
> Display:       Iiyama G23530HSU  75hz
> Desktop:       Gnome
>=20
> video: https=
://www.youtube.com/watch?v=3DgNJ2kJ8hsHA
>=20
> Have the same problem as the op. The problems started with the 4.20 Ke=
rnels.
> Had not this problem with 4.19 LTS Kernels. The flickering doesn't app=
ear on
> wayland if I choose only 60hz. On xorg it is irrelevant how much hz I =
use,
> it flickers regardless.=20
>=20
> sudo -i
> echo "manual" >
> /sys/class/drm/card0/device/power_dpm_force_performance_level=20
> echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk
>=20
> Fixes the flickering.

Just a quick update. After switching from HDMI to DisplayPort the issue
resolved itself for me.

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