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List:       dri-patches
Subject:    drm: Branch 'modesetting-101'
From:       jbarnes () kemper ! freedesktop ! org (Jesse Barnes)
Date:       2007-11-27 20:41:16
Message-ID: 20071127204116.CA69C10096 () kemper ! freedesktop ! org
[Download RAW message or body]

 linux-core/intel_lvds.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

New commits:
commit 617cbeed2ae71c5560f597db49637df10edd8a52
Author: Jesse Barnes <jesse.barnes@intel.com>
Date:   Tue Nov 27 12:39:09 2007 -0800

    Don't use panel fitter if we're programming a native mode
    
    Fix from the DDX driver.

diff --git a/linux-core/intel_lvds.c b/linux-core/intel_lvds.c
index 4f15c13..e3e4b38 100644
--- a/linux-core/intel_lvds.c
+++ b/linux-core/intel_lvds.c
@@ -255,8 +255,13 @@ static void intel_lvds_mode_set(struct drm_output *output,
 	 * screen.  Should be enabled before the pipe is enabled, according to
 	 * register description and PRM.
 	 */
-	pfit_control = (PFIT_ENABLE | VERT_AUTO_SCALE | HORIZ_AUTO_SCALE |
-			VERT_INTERP_BILINEAR | HORIZ_INTERP_BILINEAR);
+	if (mode->hdisplay != adjusted_mode->hdisplay ||
+	    mode->vdisplay != adjusted_mode->vdisplay)
+		pfit_control = (PFIT_ENABLE | VERT_AUTO_SCALE |
+				HORIZ_AUTO_SCALE | VERT_INTERP_BILINEAR |
+				HORIZ_INTERP_BILINEAR);
+	else
+		pfit_control = 0;
 
 	if (!IS_I965G(dev)) {
 		if (dev_priv->panel_wants_dither)

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