Attachment 40677 Details for Bug 32005 – patch against black screen problem against kernel 2.6.36

patch against black screen problem against kernel 2.6.36

intel_screenfix.diff (text/plain), 1.09 KB, created by Rene Peinthor on 2010-11-30 10:39:29 UTC

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Creator: Rene Peinthor

Created: 2010-11-30 10:39:29 UTC

Size: 1.09 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
>index 9ab8708..2f18028 100644
>--- a/drivers/gpu/drm/i915/intel_dp.c
>+++ b/drivers/gpu/drm/i915/intel_dp.c
>@@ -892,21 +892,23 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode)
> 	uint32_t dp_reg = I915_READ(intel_dp->output_reg);
> 
> 	if (mode != DRM_MODE_DPMS_ON) {
>-		if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) {
>-			ironlake_edp_backlight_off(dev);
>-			ironlake_edp_panel_off(dev);
>-		}
>-		if (dp_reg & DP_PORT_EN)
>+		if (dp_reg & DP_PORT_EN) {
> 			intel_dp_link_down(intel_dp);
>+			if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) {
>+				ironlake_edp_backlight_off(dev);
>+				ironlake_edp_panel_off(dev);
>+			}
>+		}
> 		if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp))
> 			ironlake_edp_pll_off(encoder);
> 	} else {
> 		if (!(dp_reg & DP_PORT_EN)) {
>-			if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp))
>-				ironlake_edp_panel_on(dev);
> 			intel_dp_link_train(intel_dp);
> 			if (IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp))
>+			{
>+				ironlake_edp_panel_on(dev);
> 				ironlake_edp_backlight_on(dev);
>+			}
> 		}
> 	}
> 	intel_dp->dpms_mode = mode;

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Attachments on bug 32005: 40677

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