From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 107823] [amdgpu/displayport] Blackscreen on native resolution Date: Tue, 04 Sep 2018 14:40:29 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1872587207==" 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 99C586E091 for ; Tue, 4 Sep 2018 14:40:29 +0000 (UTC) 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 --===============1872587207== Content-Type: multipart/alternative; boundary="15360720290.7c0b.2662" Content-Transfer-Encoding: 7bit --15360720290.7c0b.2662 Date: Tue, 4 Sep 2018 14:40:29 +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=3D107823 Bug ID: 107823 Summary: [amdgpu/displayport] Blackscreen on native resolution Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: jan.burgmeier@unicon-software.com Created attachment 141442 --> https://bugs.freedesktop.org/attachment.cgi?id=3D141442&action=3Dedit dmesg with drm.debug=3D0x1e log_buf_len=3D1M Hi, there seems to be some monitor/graphics card combination which lead to a bl= ack screen. In my case it is the native (1920x1080) resolution of a NEC EA223WM monitor= and a [AMD/ATI] Carrizo (rev 88). Setting any other mode than the native one via xrandr turns the monitor on. Setting it back to the native one results in a black screen. It seems unrelated to XOrg as there is also a black screen on the terminal = and during boot. I do not see any errors in dmesg or XOrg log The error does not occur with module parameter dc=3D0 Environment: Kernel: 4.19.0-rc2 (git master) Mesa: 18.1.6 XOrg: 1.20.1 amdgpu-ddx: 18.0.99 (git master) --=20 You are receiving this mail because: You are the assignee for the bug.= --15360720290.7c0b.2662 Date: Tue, 4 Sep 2018 14:40:29 +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
Bug ID 107823
Summary [amdgpu/displayport] Blackscreen on native resolution
Product DRI
Version DRI git
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter jan.burgmeier@unicon-software.com 

Created attachment 141442 [details]=

dmesg with drm.debug=3D0x1e log_buf_len=3D1M

Hi,

there seems to be some monitor/graphics card combination which lead to a bl=
ack
screen.
In my case it is the native (1920x1080) resolution of a NEC EA223WM monitor=
 and
a [AMD/ATI] Carrizo (rev 88). Setting any other mode than the native one via
xrandr turns the monitor on. Setting it back to the native one results in a
black screen.
It seems unrelated to XOrg as there is also a black screen on the terminal =
and
during boot.
I do not see any errors in dmesg or XOrg log

The error does not occur with module parameter dc=3D0

Environment:
Kernel: 4.19.0-rc2 (git master)
Mesa: 18.1.6
XOrg: 1.20.1
amdgpu-ddx: 18.0.99 (git master)

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