From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 98324] amd-staging-4.7: problems with unblanking displays when monitors are switched off Date: Wed, 19 Oct 2016 17:23:32 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1244147299==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 37A9E6E983 for ; Wed, 19 Oct 2016 17:23:32 +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 --===============1244147299== Content-Type: multipart/alternative; boundary="14768978120.cf0e.3166"; charset="UTF-8" --14768978120.cf0e.3166 Date: Wed, 19 Oct 2016 17:23:32 +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=3D98324 Bug ID: 98324 Summary: amd-staging-4.7: problems with unblanking displays when monitors are switched off Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: bugspam@moreofthesa.me.uk Created attachment 127405 --> https://bugs.freedesktop.org/attachment.cgi?id=3D127405&action=3Dedit Kernel log extract, showing the unblanking failure. Setup: RX 470 with two monitors attached =E2=80=93 one via DVI-and one via = HDMI. (Both are AOC monitors.) * Ensure that outputs are blanked (via xset, time-out or similar). * Switch off the monitors. * Unblank the outputs. * Switch on the monitors. Invariably, in this situation, the DVI-connected monitor is unblanked and displaying what it should be, but the HDMI-connected monitor is receiving no signal (or at least nothing to display) and is therefore displaying nothing. The HDMI-connected monitor can be restored by using xrandr to change mode o= r by blanking and unblanking =E2=80=93 so long as it's switched on while doing s= o. --=20 You are receiving this mail because: You are the assignee for the bug.= --14768978120.cf0e.3166 Date: Wed, 19 Oct 2016 17:23:32 +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 98324
Summary amd-staging-4.7: problems with unblanking displays when monit= ors are switched off
Product DRI
Version unspecified
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter bugspam@moreofthesa.me.uk 

Created attachment 127405 [details]
Kernel log extract, showing the unblanking failure.

Setup: RX 470 with two monitors attached =E2=80=93 one via DVI-and one via =
HDMI. (Both
are AOC monitors.)

* Ensure that outputs are blanked (via xset, time-out or similar).
* Switch off the monitors.
* Unblank the outputs.
* Switch on the monitors.

Invariably, in this situation, the DVI-connected monitor is unblanked and
displaying what it should be, but the HDMI-connected monitor is receiving no
signal (or at least nothing to display) and is therefore displaying nothing.

The HDMI-connected monitor can be restored by using xrandr to change mode o=
r by
blanking and unblanking =E2=80=93 so long as it's switched on while doing s=
o.

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