---

yaml
---
r: 189688
b: refs/heads/master
c: 2eb92c8
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f3bbb9ccbf2a0362363ce6d7e4e57dbf34a5cef1
+refs/heads/master: 2eb92c80074ecfbc691741720382007417f64523

trunk/drivers/gpu/drm/nouveau/nouveau_bios.c

@@ -3659,6 +3659,21 @@ int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, b
 		break;
 	}
 
+	/* Dell Latitude D620 reports a too-high value for the dual-link
+	 * transition freq, causing us to program the panel incorrectly.
+	 *
+	 * It doesn't appear the VBIOS actually uses its transition freq
+	 * (90000kHz), instead it uses the "Number of LVDS channels" field
+	 * out of the panel ID structure (http://www.spwg.org/).
+	 *
+	 * For the moment, a quirk will do :)
+	 */
+	if ((dev->pdev->device == 0x01d7) &&
+	    (dev->pdev->subsystem_vendor == 0x1028) &&
+	    (dev->pdev->subsystem_device == 0x01c2)) {
+		bios->fp.duallink_transition_clk = 80000;
+	}
+
 	/* set dual_link flag for EDID case */
 	if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
 		bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);