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.
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.
*/
--
1.7.9.5
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