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i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard

Message ID 1345809391.3443.9.camel@ayu (mailing list archive)
State New, archived
Headers show

Commit Message

Calvin Walton Aug. 24, 2012, 11:56 a.m. UTC
This board is incorrectly detected as having an LVDS connector,
resulting in the VGA output (the only available output on the board)
showing the console only in the top-left 1024x768 pixels, and an extra
LVDS connector appearing in X.

It's a desktop Mini-ITX board using an Atom D525 CPU with an NM10

I've had this board for about a year, but this is the first time I
noticed the issue because I've been running it headless for most of its

Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca>

This board:

If you want any additional debug output from this machine, let me know
what you would like and how to find it.

I think this patch would probably be a reasonable candidate for -stable?

 drivers/gpu/drm/i915/intel_lvds.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 08eb04c..2c58310 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -777,6 +777,14 @@  static const struct dmi_system_id intel_no_lvds[] = {
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Gigabyte GA-D525TUD",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
+		},
+	},
 	{ }	/* terminating entry */