[Bug 71083] (struct drm_encoder_helper_funcs)->mode_set not re-called after display (and EDID) change

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Comment # 1 on bug 71083 from
Are you unplugging the cable from the card when you switch the monitors?  That
should generate a hotplug event which will trigger the graphics stack to
reprobe the displays.  If you are just changing the monitor connected to the
receiver, it sounds like the receiver never sends a hotplug event to the card. 
As such the card has no way of knowing that the EDID has changed.


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