[Bug 46711] Monitor not turning on after DisplayPort re-plug in Xorg

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=46711

--- Comment #15 from Tvrtko Ursulin <tvrtko.ursulin at onelan.co.uk> 2012-04-18 01:16:19 PDT ---
In fact, with the patch monitor is no longer in power save mode after cable
re-plug (whereas without the patch it would be), but in some strange state
where the screen is black and it seems to be thoroughly confused to the extend
it can't even show the OSD. At this point if I run "xset dpms force off" I
properly goes into powersave and OSD works again.

I suspect DP initialization done from radeon_connector_hotplug is somehow
incomplete or buggy.

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