[PATCH] drm/edid: add quirk for Acer 19" display AL1917WA

[alexdeucher at gmail.com]

From: Alex Deucher <alexander.deucher at amd.com>

1440x900 (native) monitor contains a bogus 1400x1050 at 75Hz
mode in the standard timings and fails to flag the first
detailed mode as preferred.  As such, X picks 1400x1050 at 75Hz
which fails to display.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=59211

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Cc: stable at vger.kernel.org
---
 drivers/gpu/drm/drm_edid.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 5a3770f..aad38b6 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -96,6 +96,8 @@ static struct edid_quirk {
 	{ "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
 	/* Unknown Acer */
 	{ "ACR", 2423, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
+	/* Acer AL1917WA */
+	{ "ACR", 0xad87, EDID_QUIRK_FIRST_DETAILED_PREFERRED },
 
 	/* Belinea 10 15 55 */
 	{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
-- 
1.7.7.5