[Bug 210429] New: AMDGPU - DRM connector force-probe after DPMS causes monitor to reconnect

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=210429

            Bug ID: 210429
           Summary: AMDGPU - DRM connector force-probe after DPMS causes
                    monitor to reconnect
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.4.80
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: jordanleppert at gmail.com
        Regression: No

This is with a Vega64 card, connected to two monitors via DisplayPort 1.2.

When the connector is force-probed with a call to drmModeGetConnector, this is
causing the connection to the monitor to disconnect, and reconnect.

I'm seeing this issue using Wayland, specifically a wlroots based compositor.
This patch to wlroots (which unfortunately needs to be reverted) stopped the
problem happening: https://github.com/swaywm/wlroots/pull/2482/files

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