Attachment 908124 Details for Bug 1097436 – New patch 1/2

[patch] New patch 1/2

0001-asus-wmi-Disable-acpi-video-backlight-on-desktop-mac.patch (text/plain), 1.73 KB, created by Hans de Goede on 2014-06-12 13:16:30 UTC

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Creator: Hans de Goede

Created: 2014-06-12 13:16:30 UTC

Size: 1.73 KB

patch

obsolete

>From c3f922802abaa318c0fe61230a66283d69f35ffa Mon Sep 17 00:00:00 2001
>From: Hans de Goede <hdegoede@redhat.com>
>Date: Thu, 12 Jun 2014 14:31:17 +0200
>Subject: [PATCH 1/2] asus-wmi: Disable acpi-video backlight on desktop
> machines
>
>Some Asus motherboards for desktop PC-s export interface advertising backlight
>support. Test the dmi chassis-type and tell acpi-video to not register a
>backlight interface on desktops.
>
>https://bugzilla.redhat.com/show_bug.cgi?id=1097436
>
>Signed-off-by: Hans de Goede <hdegoede@redhat.com>
>---
> drivers/platform/x86/asus-wmi.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
>diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
>index c5e082f..6628d8a 100644
>--- a/drivers/platform/x86/asus-wmi.c
>+++ b/drivers/platform/x86/asus-wmi.c
>@@ -46,6 +46,7 @@
> #include <linux/platform_device.h>
> #include <linux/thermal.h>
> #include <linux/acpi.h>
>+#include <linux/dmi.h>
> #include <acpi/video.h>
> 
> #include "asus-wmi.h"
>@@ -1737,6 +1738,7 @@ static int asus_wmi_add(struct platform_device *pdev)
> 	struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
> 	struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
> 	struct asus_wmi *asus;
>+	const char *chassis_type;
> 	acpi_status status;
> 	int err;
> 	u32 result;
>@@ -1773,6 +1775,11 @@ static int asus_wmi_add(struct platform_device *pdev)
> 	if (err)
> 		goto fail_rfkill;
> 
>+	/* Some Asus desktop boards export an acpi-video brightness interface,
>+	   stop this from showing up */
>+	chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
>+	if (chassis_type && !strcmp(chassis_type, "3")) 
>+		acpi_video_dmi_promote_vendor();
> 	if (asus->driver->quirks->wmi_backlight_power)
> 		acpi_video_dmi_promote_vendor();
> 	if (!acpi_video_backlight_support()) {
>-- 
>2.0.0
>

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Attachments on bug 1097436: 908124 | 908125