[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:

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--- Comment #36 from Tvrtko Ursulin <tvrtko.ursulin at onelan.co.uk> 2012-03-16 06:57:03 PDT ---
Created attachment 58555
  --> https://bugs.freedesktop.org/attachment.cgi?id=58555
Donot probe extensively if HPD hasn't changed on R600+ ASICs

Now, with these last two patches things should look better for us you think? 

Problem I have now is that with VGA connected to this DVI-I as soon as KMS
kicks in (radeon.ko loads) monitor goes to power save. Even after X is running
and xrandr shows that a mode is active, monitor is still off. This is caused
purely by the Fujitsu quirk patch.

Same symptoms if I boot on DVI and then plug VGA later. Although in this case
it may be a different cause. When I unplug the DVI connector goes into the
"unknown" state. This is because ext_encoder test radeon_atom_dig_detect fails.
And Xorg sees that as "unknown" status but show an active mode while monitor is
firmly in power save.

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