Suspend/resume on i915 stop working between r278348 and r278741.

[Gleb Smirnoff]

On Sat, Feb 14, 2015 at 10:31:18PM +0100, Ranjan1018 . wrote:
R> Just updated my Samsung Ativ Book 2, running 11-CURRENT, from r278348 to
R> r278741.
R> Now suspend via ‘acpiconf -s3’ does not work: the LCD stay dark, the
R> keyboard doesn't react when pressing CapsLock and I have to switch the
R> laptop off pressing the power button.

I have different issue: now suspend puts the laptop to sleep, but it
reboots on attempt to wake up.

I already narrowed down to: r278467 - r278490. Pretty sure, I'm going
to stop bisect near x2apic.

Will test kib@'s patch soon.

-- 
Totus tuus, Glebius.