From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.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 [thread overview]
Message-ID: <bug-98324-502@http.bugs.freedesktop.org/> (raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=98324
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=127405&action=edit
Kernel log extract, showing the unblanking failure.
Setup: RX 470 with two monitors attached – 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 or by
blanking and unblanking – so long as it's switched on while doing so.
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next reply other threads:[~2016-10-19 17:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-19 17:23 bugzilla-daemon [this message]
2016-10-19 17:34 ` [Bug 98324] amd-staging-4.7: problems with unblanking displays when monitors are switched off bugzilla-daemon
2017-08-20 23:23 ` bugzilla-daemon
2017-08-22 6:43 ` [Bug 98324] [DC] " bugzilla-daemon
2017-08-22 14:54 ` bugzilla-daemon
2017-08-22 14:56 ` bugzilla-daemon
2017-08-22 14:58 ` bugzilla-daemon
2017-08-22 22:34 ` bugzilla-daemon
2017-08-23 1:12 ` bugzilla-daemon
2017-09-14 15:32 ` bugzilla-daemon
2017-09-28 13:02 ` bugzilla-daemon
2017-10-01 13:11 ` bugzilla-daemon
2018-05-03 20:51 ` bugzilla-daemon
2018-05-03 20:52 ` bugzilla-daemon
2018-05-05 0:32 ` bugzilla-daemon
2018-06-16 21:40 ` bugzilla-daemon
2019-11-19 8:10 ` bugzilla-daemon
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