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Commit 670820c0 authored by Francisco Jerez's avatar Francisco Jerez Committed by Ben Skeggs
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drm/nouveau: Workaround incorrect DCB entry on a GeForce3 Ti 200. 



Fixes the DVI-D output on that board (fdo bug 32645).

Reported-by: default avatarBryan Quigley <BryanQuigley@Ubuntu.com>
Signed-off-by: default avatarFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 51f73d64

drivers/gpu/drm/nouveau/nouveau_bios.c

+15 −0
Original line number Diff line number Diff line
@@ -6310,6 +6310,9 @@ void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb) 
static bool

apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)

{

	struct drm_nouveau_private *dev_priv = dev->dev_private;

	struct dcb_table *dcb = &dev_priv->vbios.dcb;



	/* Dell Precision M6300

	 *   DCB entry 2: 02025312 00000010

	 *   DCB entry 3: 02026312 00000020
@@ -6327,6 +6330,18 @@ apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf) 
			return false;

	}



	/* GeForce3 Ti 200

	 *

	 * DCB reports an LVDS output that should be TMDS:

	 *   DCB entry 1: f2005014 ffffffff

	 */

	if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) {

		if (*conn == 0xf2005014 && *conf == 0xffffffff) {

			fabricate_dcb_output(dcb, OUTPUT_TMDS, 1, 1, 1);

			return false;

		}

	}



	return true;

}