linux-kernel - Re: [Bisected] Output to external monitor is broken (Re: Linux 2.6.31-rc9)

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Date:	Tue, 8 Sep 2009 14:58:08 +0800
From:	Zhenyu Wang <zhenyuw@...ux.intel.com>
To:	"Carlos R. Mafra" <crmafra2@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ma Ling <ling.ma@...el.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Zhao Yakui <yakui.zhao@...el.com>,
	Eric Anholt <eric@...olt.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Bisected] Output to external monitor is broken (Re: Linux
 2.6.31-rc9)

On 2009.09.07 21:12:19 +0200, Carlos R. Mafra wrote:
> 
> I am no longer at the institute with the monitor to test, but I've already
> uploaded similar debug info to the bugzilla upon ykzhao's request this
> morning (but I think you were not Cc:-ed on that request, though).
> 
> http://bugzilla.kernel.org/show_bug.cgi?id=14139
> 
> PS: The external monitor is unreadable, but the laptop's screen is still good.

Carlos, I've just taken a look at that one, there're some drawbacks in
it, but can't understand why it caused break for you. It'll be great if
you can test with this one. 

From f3932299964b2616d42d7fcf734bd880009ab206 Mon Sep 17 00:00:00 2001
From: Zhenyu Wang <zhenyuw@...ux.intel.com>
Date: Tue, 8 Sep 2009 14:52:25 +0800
Subject: [PATCH] drm/i915: fix mask bits setting

eDP is exclusive connector too, and add missing crtc_mask
setting for TV.

Signed-off-by: Zhenyu Wang <zhenyuw@...ux.intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c  |    2 +-
 drivers/gpu/drm/i915/intel_drv.h |    1 +
 drivers/gpu/drm/i915/intel_tv.c  |    1 +
 3 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f2afc4a..2b914d7 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1263,7 +1263,7 @@ intel_dp_init(struct drm_device *dev, int output_reg)
 
 	if (IS_eDP(intel_output)) {
 		intel_output->crtc_mask = (1 << 1);
-		intel_output->clone_mask = (1 << INTEL_OUTPUT_EDP);
+		intel_output->clone_mask = (1 << INTEL_EDP_CLONE_BIT);
 	} else
 		intel_output->crtc_mask = (1 << 0) | (1 << 1);
 	connector->interlace_allowed = true;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 25aa6fa..26a6227 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -74,6 +74,7 @@
 #define INTEL_LVDS_CLONE_BIT 14
 #define INTEL_DVO_TMDS_CLONE_BIT 15
 #define INTEL_DVO_LVDS_CLONE_BIT 16
+#define INTEL_EDP_CLONE_BIT 17
 
 #define INTEL_DVO_CHIP_NONE 0
 #define INTEL_DVO_CHIP_LVDS 1
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 2fbe13a..5b1c9e9 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1730,6 +1730,7 @@ intel_tv_init(struct drm_device *dev)
 	drm_mode_connector_attach_encoder(&intel_output->base, &intel_output->enc);
 	tv_priv = (struct intel_tv_priv *)(intel_output + 1);
 	intel_output->type = INTEL_OUTPUT_TVOUT;
+	intel_output->crtc_mask = (1 << 0) | (1 << 1);
 	intel_output->clone_mask = (1 << INTEL_TV_CLONE_BIT);
 	intel_output->enc.possible_crtcs = ((1 << 0) | (1 << 1));
 	intel_output->enc.possible_clones = (1 << INTEL_OUTPUT_TVOUT);
-- 
1.6.3.3

-- 
Open Source Technology Center, Intel ltd.

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