[Bug 76276] Backlight control broken on Dell XPS13 w/ kernel 3.14-rc7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76276

--- Comment #43 from Adam Kolakowski <adamk at lavabs.com> ---
I've just checked and kernels not using the mentioned quirk work like a charm
with "Legacy Boot Rom" disabled in BIOS. (XPS13 IVY). This quirk
(QUIRK_NO_PCH_PWM_ENABLE) causes backlight to turn completely off after kernel
start on legacy-feee machines. Do we really have to reapply it in 3.14? Isn't
disabling this option (which is a good thing performance-wise) engouth?

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