From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 91202] output to DVI-I is blank Date: Fri, 03 Jul 2015 01:22:44 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0497981598==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 6A2C96E210 for ; Thu, 2 Jul 2015 18:22:44 -0700 (PDT) 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 --===============0497981598== Content-Type: multipart/alternative; boundary="1435886564.6EFAcebE0.30593"; charset="UTF-8" --1435886564.6EFAcebE0.30593 Date: Fri, 3 Jul 2015 01:22:44 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=91202 Bug ID: 91202 Summary: output to DVI-I is blank Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: bpaterni@gmail.com Created attachment 116902 --> https://bugs.freedesktop.org/attachment.cgi?id=116902&action=edit dmesg for e965b8ce4215ac2b22b23ffc8a8dfbae964b9496 I have a radeon r9 285 (tonga) and I'm trying to run dual DVI displays via the new AMDGPU driver. The problem I'm having though is that the display connected to the DVI-I output goes blank during drm initialization on boot, and thereafter never 'recovers'. If I plug either DVI-D or DVI-I in individually, however, and disconnect the other on a fresh boot, either outputs work just fine. Additionally, dual displays do work if I use any combination of DVI-D, HDMI, or DisplayPort; which leads me to believe that the problem has something to do with how amdgpu is handling output to DVI-I or a hardware problem. Hopefully it is not the latter. Please let me know if there is anything I can do to help debug this problem! I'm using Debian unstable, with the latest linux kernel compiled from git mainline (e965b8ce4215ac2b22b23ffc8a8dfbae964b9496) dmesg and Xorg log should be attached. -- You are receiving this mail because: You are the assignee for the bug. --1435886564.6EFAcebE0.30593 Date: Fri, 3 Jul 2015 01:22:44 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Bug ID 91202
Summary output to DVI-I is blank
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter bpaterni@gmail.com 

Created attachment 116902 [details]
dmesg for e965b8ce4215ac2b22b23ffc8a8dfbae964b9496

I have a radeon r9 285 (tonga) and I'm trying to run dual DVI displays via the
new AMDGPU driver. The problem I'm having though is that the display connected
to the DVI-I output goes blank during drm initialization on boot, and
thereafter never 'recovers'. If I plug either DVI-D or DVI-I in individually,
however, and disconnect the other on a fresh boot, either outputs work just
fine. Additionally, dual displays do work if I use any combination of DVI-D,
HDMI, or DisplayPort; which leads me to believe that the problem has something
to do with how amdgpu is handling output to DVI-I or a hardware problem.
Hopefully it is not the latter.

Please let me know if there is anything I can do to help debug this problem!

I'm using Debian unstable, with the latest linux kernel compiled from git
mainline (e965b8ce4215ac2b22b23ffc8a8dfbae964b9496)

dmesg and Xorg log should be attached.

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