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

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=47007

Tvrtko Ursulin <tvrtko.ursulin at onelan.co.uk> changed:

           What    |Removed                     |Added
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  Attachment #58318|0                           |1
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--- Comment #14 from Tvrtko Ursulin <tvrtko.ursulin at onelan.co.uk> 2012-03-13 01:46:42 PDT ---
Created attachment 58360
  --> https://bugs.freedesktop.org/attachment.cgi?id=58360
Do not re-fetch full EDID while a HPD capable output remains connected

So something like this:
---
On multi output boards where one output is not connected it can cause KMS poll
helper to run periodically. This makes the connected DVI/HDMI output re-fetch
full EDID on every poll causing 100ms rendering stalls.

Fix is to skip re-fetching full EDID while a HPD capable output remains
connected on R600 and newer.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

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