[Bug 59726] [ivb (optimus) LVDS] Boots to blank screen, ACPI backlight woes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59726

--- Comment #22 from Igor Gnatenko <i.gnatenko.brain at gmail.com> ---
(In reply to comment #20)
> Can you please test whether disabling the ACPI backlight ala
> https://patchwork.kernel.org/patch/2697681/ fixes the issue?
Not this patch.
hadrons123 tested patchset for unregister backlight and its work. But this bug
remained.

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