drm/i915: Disable RC6 on Sandybridge by default
authorKeith Packard <keithp@keithp.com>
Tue, 27 Dec 2011 01:02:11 +0000 (17:02 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 27 Dec 2011 05:07:27 +0000 (21:07 -0800)
commit371de6e4e0042adf4f9b54c414154f57414ddd37
tree721f3c4697a926a22c81a842afbbc143614ab9c6
parentebbd857e6b9a92c0aff4aacd1b1d2361d888633e
drm/i915: Disable RC6 on Sandybridge by default

RC6 fails again.

> I found my system freeze mostly during starting up X and KDE. Sometimes it
> works for some minutes, sometimes it freezes immediatly. When the freeze
> happens, everything is dead (even the reset button does not work, I need to
> power cycle).

> I disabled RC6, and my system runs wonderfully.

> The system is a Z68 Pro board with Sandybridge i5-2500K processor, 8
> GB of RAM and UEFI firmware.

Reported-by: Kai Krakow <hurikhan77@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/gpu/drm/i915/intel_display.c