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-...@kernel-bugs.osdl.org
Reporter: jordanlepp...@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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