From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 111244] amdgpu kernel 5.2 blank display after resume from suspend Date: Wed, 07 Aug 2019 13:48:28 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0002732556==" 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 55E5A6E6EC for ; Wed, 7 Aug 2019 13:48:28 +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 --===============0002732556== Content-Type: multipart/alternative; boundary="15651857083.766d5.25999" Content-Transfer-Encoding: 7bit --15651857083.766d5.25999 Date: Wed, 7 Aug 2019 13:48:28 +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=3D111244 --- Comment #21 from cspack@verizon.net --- The default is -1 according to the docs and /sys/module/amdgpu/parameters/d= c. I assume it should effectively be the same but it seems to result in different behavior vs. setting it to 1. DC is enabled in both cases (the log shows "Display Core initialized"), but setting it to default results in a suspend/resume failure 100% of the time. Whereas setting it to 1 results in success most of time, although it did fail eventually after several reboots. Very strange. --=20 You are receiving this mail because: You are the assignee for the bug.= --15651857083.766d5.25999 Date: Wed, 7 Aug 2019 13:48:28 +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

Comme= nt # 21 on bug 11124= 4 from cspack@verizon= .net 
The default is -1 according to the docs and /sys/module/amdgpu=
/parameters/dc. I
assume it should effectively be the same but it seems to result in different
behavior vs. setting it to 1. DC is enabled in both cases (the log shows
"Display Core initialized"), but setting it to default results in=
 a
suspend/resume failure 100% of the time. Whereas setting it to 1 results in
success most of time, although it did fail eventually after several reboots.
Very strange.

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