On Tuesday, March 03, 2015 02:39:14 PM Alex Hung wrote:
> The brightness hotkeys of HP Pavilion dv6 does not work with Win8 OSI. Due
> to insufficient documentation for the driver implementation, blacklist
> it as a workaround.
I gather that the native backlight interface doesn't work on those systems too,
is that correct?
> Signed-off-by: Alex Hung <alex.hung@xxxxxxxxxxxxx>
> ---
> drivers/acpi/blacklist.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
> index 9b693d5..98aa360 100644
> --- a/drivers/acpi/blacklist.c
> +++ b/drivers/acpi/blacklist.c
> @@ -300,6 +300,18 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
> },
>
> /*
> + * The brightness hotkeys do not work on those machines when
> + * returning true for _OSI("Windows 2012")
> + */
> + {
> + .callback = dmi_disable_osi_win8,
> + .ident = "HP Pavilion dv6",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6 Notebook PC"),
> + },
> + },
> + /*
> * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
> * Linux ignores it, except for the machines enumerated below.
> */
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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