[Bug 100109] Graphics Lockup if monitor disconnected and then set into standby

[Bug 100109] Graphics Lockup if monitor disconnected and then set into standby

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100109

            Bug ID: 100109
           Summary: Graphics Lockup if monitor disconnected and then set
                    into standby
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu-pro
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: kierangrant@linux.com

Created attachment 130119
  --> https://bugs.freedesktop.org/attachment.cgi?id=130119&action=edit
Various log files

I got a Kernel Oops from with AMDGPU-PRO for Ubuntu 16.04.2 LTS x86-64 version
16.60 after unplugging and plugging in my HDMI display...

Computer was left on overnight to do some long IO operation... before I left
it, I turned monitor off... at the time my MATE display settings was to put
monitor to sleep after 30 minutes... so I guess it tried that after 30
minutes...

Next day... I got no graphics response... after trying various F-n combos... I
eventually tried some SysRq keys to force text console... but stock Ubuntu
SysRq limit was in effect *doh*...

That is when as a last resort thought to unplug and re-plug in monitor... in
hopes that would magically do something... it did something alright...

I got Kernel OOPS at that moment... it was early morning for me :|

Attached is a snippet of my syslog plus various ls* outputs...

I have a MSI Radeon RX480 8GB

I will see if I can manually reproduce the bug to get a Xorg.log file... I
forgot that one and old one is now gone :/

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[Bug 100109] Graphics Lockup if monitor disconnected and then set into standby

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100109

--- Comment #1 from Kieran Grant <kierangrant@linux.com> ---
I just tried to quickly reproduce the problem using timer delayed xset usage
and turning off monitor and unplugging it... but no oops and no graphics stack
corruption... (Well... at least *that* is good news)

So it will take some better testing to reproduce it...
Hopefully I won't have to resort to leaving my computer on overnight again with
original setup of sleep after 30 minutes and monitor turned off...

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[Bug 100109] Graphics Lockup if monitor disconnected and then set into standby

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100109

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #2 from Martin Peres <martin.peres@free.fr> ---
-- 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/12.

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