[PATCH 3.3-rc3] drm/i915: Fixes distorted external screen image on HP 2730p

[phil at haerkules.de]

From: Philipp Grete <mail at pgrete.de>

Fixes LP: #796030 by removing forced pipe A on HP 2730p.
Quirk has previously been introduced to fix a sleep mode problem that does not exist any more.

Signed-off-by: Philipp Grete <mail at pgrete.de>
---
Fix has been confirmed by at least three people (see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/796030) who didn't experience any sleep mode problems after applying the patch.

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index daa5743..515a1cc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8702,8 +8702,6 @@ struct intel_quirk {
 };
 
 struct intel_quirk intel_quirks[] = {
-	/* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */
-	{ 0x2a42, 0x103c, 0x30eb, quirk_pipea_force },
 	/* HP Mini needs pipe A force quirk (LP: #322104) */
 	{ 0x27ae, 0x103c, 0x361a, quirk_pipea_force },