Bug 108684

Summary: One monitor sometimes does not turn back on
Product: DRI Reporter: Timo <timokau>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact:
Severity: normal    
Priority: medium CC: freedesktop
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Xorg logfile (through journald)
none
dmesg none

Description Timo 2018-11-06 18:18:28 UTC 
Created attachment 142391 [details]
Xorg logfile (through journald)

I have Radeon HD 7870 with two monitors connected. One Acer G276HL over HDMI and one Dell U2415b over DP.

The Acer sometimes does not turn back on when I wake the computer up from suspend. That always affects only the Acer. I can also reproduce this by executing `xset dpms force off && xset dpms force on` enough times. Forcing it off and on also works to "fix" the issue when it occurs. Switching ttys also helps.

The kernel version is 4.14.79, the XOrg version 1.19.6, the distro NixOS. Xorg log is attached.
Comment 1 Timo 2018-11-06 22:53:48 UTC 
Created attachment 142393 [details]
dmesg
Comment 2 Martin Peres 2019-11-19 09:34:30 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/858.

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