[Bug 47007] HDMI monitor polling causing 100ms rendering stalls

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Mar 15 06:10:34 PDT 2012


--- Comment #19 from Alex Deucher <agd5f at yahoo.com> 2012-03-15 06:10:34 PDT ---
Only digital connectors (HDMI, DVI (digital portion only), DP) have HDP pins. 
There is no hotplug spec for analog connectors.  They almost always have to be
polled if you want connect/disconnect.  DVI-I connectors have an HPD pin, but
it's only applicable to the digital portion.  It may or may not work for the
analog part.  Also, different connectors with the same ddc line may not have
same HPD pin (analog connectors won't have and HPD pin at all).

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