[Intel-gfx] [PATCH] drm/i915: Add a DRM property "psr"

Jesse Barnes jbarnes at virtuousgeek.org
Tue Mar 18 21:06:20 CET 2014


On Tue, 18 Mar 2014 12:51:07 -0700
Siva Chandra <sivachandra at chromium.org> wrote:

> This property helps one turn PSR "on" and "off" via xrandr.
> The default value is same as that of the module param i915.enable_psr.
> 
> Signed-off-by: Siva Chandra <sivachandra at google.com>
> ---

So are you using this in Chromium for disabling PSR in cases where it
doesn't work?  Or to optimize power consumption when the kernel driver
gets it wrong?  Or just for debug?

Seems potentially useful, just curious what motivated you guys.

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center



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