[Bug 73156] Dual onboard LCD (eDP1 and DP1) cannot turn on DP1 (no backlight), no backlight control but can see screen in reflected light

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73156

--- Comment #12 from Daiver <daiver at daiver.ru> ---
I will try to remove all Asus programs from Windows.
After that i could still turn on and off both display by switching from Intel
Graphics and Media Control Panel.
Only after removing the Intel driver remained one monitor.

Maybe it's not quite a pure experiment, but there is reason to believe that the
functional to turn on the backlight driver is part of Intel.

It is doubtful that Asus could add to Intel Graphics and Media Contol Panel
menu for selecting which LCD is on.

Maybe you can ask Windows driver authors, which through interface we can turn
on backlight?

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