[Intel-gfx] [PATCH] drm/i915: fix screen blank issue in TV detect

[Eric Anholt]

On Fri, 2009-09-11 at 13:19 +0800, Zhenyu Wang wrote:
> In load time, this one trys to detect TV by current encoder state
> instead of load-detect method. Because load-detect will set mode
> which disable VGA mode entirely, but couldn't restore back later.
> Destroy VGA mode which is the mode after system boot caused black
> screen problem, although load fbcon or X later could setup the mode
> on LVDS without problem.
> 
> That fixes screen blank issue seen on Macbook after boot and before
> fbcon or X kicks in, actually this affects all laptops with TV out,
> or without real port but our TV encoder probe fails to detect.
> 
> Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>

I think a black screen after boot and before fbcon loads sounds like the
right behavior.

-- 
Eric Anholt
eric at anholt.net                         eric.anholt at intel.com


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