[PATCH] Disable LVDS output on Clientron E830 Thin Client

[PATCH] Disable LVDS output on Clientron E830 Thin Client

[Joel Sass]

Dear developers,

I've been directed here by Stephan Graber, and Joseph Salisbury. Stephan 
has helped me through my first kernel patch, and I am following along 
with the steps he took pertaining to the following bug: 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/544671

I am working on a bug located here: 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/907055 and have 
already submitted a patch. Mr Salisbury recommended I contact the 
upstream developers in order to have them work this in to the next 
release, so here I am.

I have an Intel Atom thin clients with Intel 945GM video cards 
installed. They report an LVDS output as active, even though these thin 
clients do not have a monitor attached. This is causing the clients to 
boot in dual-head mode, with one monitor missing.

Thanks everyone for your time.

The bug above has the patch listed in there, but I will include it again 
below:

--- ./intel_lvds.old    2011-12-20 13:25:49.368291249 -0500
+++ ./intel_lvds.c    2011-12-20 13:26:05.160291248 -0500
@@ -709,6 +709,14 @@
      },
      {
          .callback = intel_no_lvds_dmi_callback,
+        .ident = "Clientron E830",
+        .matches = {
+            DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
+            DMI_MATCH(DMI_PRODUCT_NAME, "E830"),
+        },
+    },
+    {
+        .callback = intel_no_lvds_dmi_callback,
          .ident = "Asus EeeBox PC EB1007",
          .matches = {
              DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),

Re: [PATCH] Disable LVDS output on Clientron E830 Thin Client

[Adam Jackson]

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On Tue, 2011-12-27 at 12:06 -0500, Joel Sass wrote:

> --- ./intel_lvds.old    2011-12-20 13:25:49.368291249 -0500
> +++ ./intel_lvds.c    2011-12-20 13:26:05.160291248 -0500
> @@ -709,6 +709,14 @@
>       },
>       {
>           .callback = intel_no_lvds_dmi_callback,
> +        .ident = "Clientron E830",
> +        .matches = {
> +            DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
> +            DMI_MATCH(DMI_PRODUCT_NAME, "E830"),
> +        },
> +    },
> +    {
> +        .callback = intel_no_lvds_dmi_callback,
>           .ident = "Asus EeeBox PC EB1007",
>           .matches = {
>               DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),

Reviewed-by: Adam Jackson <ajax@redhat.com>

- ajax

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[PATCH] drm/i915: Add Clientron E830 to the ignore LVDS list

[Joel Sass]

From: Joel Sass <sass.joel@gmail.com>

Signed-off-by: Joel Sass <jsass@disklessworkstations.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
---
 drivers/gpu/drm/i915/intel_lvds.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 77578b4..e44988e 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -708,6 +708,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
 		},
 	},
 	{
+                .callback = intel_no_lvds_dmi_callback,
+                .ident = "Clientron E830",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Clientron"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "E830"),
+                },
+        },
+        {
 		.callback = intel_no_lvds_dmi_callback,
 		.ident = "Asus EeeBox PC EB1007",
 		.matches = {
-- 
1.7.0.4