[Bug 97883] [i915] intel_backlight does not function - Lenovo X1 Yoga OLED

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97883

--- Comment #20 from arkonbob at yahoo.com ---
(In reply to Niklas Kielblock from comment #19)
> The download above contains debug symbols, so I've done some cursory
> analysis. It communicates with the panel via eDP AUX (couldn't say if it's
> using I2C-over-AUX, though) through an interface exposed by the primary
> Intel graphics driver. References to gamma and voltages (ELVSS) indicate
> it's considerably more low-level.
> 
> It's developed by Intel, not a third-party manufacturer; I have no insight
> into your organisation so forgive me if I'm wrong but I would imagine you
> can inquire about this internally.

Do you think the panel on the Asus Taichi might also be controlled in the same
way? (Bug 73156 - https://bugs.freedesktop.org/show_bug.cgi?id=73156) 

@Jani - if you are able to track someone down at Intel I'd be grateful if you
could add that to your list of questions :-)

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