linux-kernel - Re: [PATCH] ACPI / video: Add HP EliteBook Revolve 810 to the blacklist

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Message-ID: <52F43716.7020008@intel.com>
Date:	Fri, 07 Feb 2014 09:29:58 +0800
From:	Aaron Lu <aaron.lu@...el.com>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	linux-acpi@...r.kernel.org
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI / video: Add HP EliteBook Revolve 810 to the blacklist

On 02/03/2014 06:59 PM, Mika Westerberg wrote:
> On HP EliteBook Revolve 810 the ACPI backlight device doesn't work as
> expected. For example when resuming from system sleep, it seems to lose
> backlight settings.
> 
> Forcing Intel driver fixes the problem so add this machine the ACPI
> video detect blacklist.

For reference's purpose, can you please file a bug to kernel bugzilla
under the ACPI/Power-Video category and attach the acpidump and dmesg
there? Thanks.

-Aaron

> 
> Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> ---
>  drivers/acpi/video_detect.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index f0447d3daf2c..a697b77b8865 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -170,6 +170,14 @@ static struct dmi_system_id video_detect_dmi_table[] = {
>  	},
>  	{
>  	.callback = video_detect_force_vendor,
> +	.ident = "HP EliteBook Revolve 810",
> +	.matches = {
> +		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
> +		DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Revolve 810 G1"),
> +		},
> +	},
> +	{
> +	.callback = video_detect_force_vendor,
>  	.ident = "Lenovo Yoga 13",
>  	.matches = {
>  		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> 

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