Re: [Intel-gfx] [PATCH 5/7] drm/i915: Make DP prepare/commit consistent with DP dpms

Keith Packard
2011-11-03T22:59:22Z

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On Thu, 3 Nov 2011 15:41:25 -0700, Jesse Barnes <jbarnes@virtuousgeek.org> wrote:

> Except for VDD?? That does come on... and shouldn't be any different
> than a full power sequence as far as link training etc go...

Oh, that's a good point. Doing things in this order essentially forces
yet another full panel power sequence delay at this point. Hrm. I'll
have to test again when I get a chance, but perhaps we can turn the sink
DPMS on before we turn the panel power off.

> Oh missed the vdd on, which is in this path too... So I'm still
> confused by the panel off, vdd on sequence, but at least they're
> consistent.

Right, I'll try doing the sink_dpms before turning the panel off; that
should work just fine, and should make the sequence a bit faster.

--
keith.packard@intel.com

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