From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 93826] 2560x1440 @144Hz graphic glitches and bad refresh rate Date: Thu, 08 Jun 2017 01:46:39 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0728929710==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id E9ECA6E2FC for ; Thu, 8 Jun 2017 01:46:39 +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 --===============0728929710== Content-Type: multipart/alternative; boundary="14968863995.0608690C.19141"; charset="UTF-8" --14968863995.0608690C.19141 Date: Thu, 8 Jun 2017 01:46:39 +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=3D93826 --- Comment #55 from iuno@posteo.net --- (In reply to Pavel Bordukov from comment #54) > Doesn't work for me. Linux 4.11.3, R9 290x, Asus MG279Q, 144Hz has > flickering and dirty picture. 120Hz works well. I have a similar setup. Can you try what I posted above? Make sure to raise the DC clock above the default value, e.g. to 625 MHz (v= alue 62500) If you use amdgpu: in amdgpu_atombios.c adev->clock.default_dispclk If you use radeon: in atombios_crtc.c rdev->clock.default_dispclk That should fix the broken image. To fix flickering, set mclk to high (echo= 1 > /sys/class/drm/card0/device/power_dpm_force_performance_level) --=20 You are receiving this mail because: You are the assignee for the bug.= --14968863995.0608690C.19141 Date: Thu, 8 Jun 2017 01:46:39 +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 # 55 on bug 93826<= /a> from iuno@posteo.net 
(In reply to Pavel Bordukov from comment #54)

> Doesn't work for me. Linux 4.11.3, R9 290x, Asus=
 MG279Q, 144Hz has
> flickering and dirty picture. 120Hz works well.

I have a similar setup. Can you try what I posted above?

Make sure to raise the DC clock above the default value, e.g. to 625 MHz (v=
alue
62500)

If you use amdgpu: in amdgpu_atombios.c adev->clock.default_dispclk
If you use radeon: in atombios_crtc.c rdev->clock.default_dispclk

That should fix the broken image. To fix flickering, set mclk to high (echo=
 1 >
/sys/class/drm/card0/device/power_dpm_force_performance_level)

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