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H A D | acer-wmi.c | 86924de2 Mon Mar 26 14:47:58 CDT 2012 Lee, Chun-Yi <jlee@suse.com> acer-wmi: add quirk table for video backlight vendor mode
There have some acer laptop have broken _BCM implemenation, the AML code wrote value to EC register but firmware didn't change brighenss.
Fortunately, the brightness control works on those machines with vendor mode. So, add quirk table for video backlight vendor mode and unregister acpi video interface on those machines.
Tested on Acer TravelMate 4750
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: Matthew Garrett <mjg@redhat.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Lee, Chun-Yi <jlee@suse.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> 86924de2 Mon Mar 26 14:47:58 CDT 2012 Lee, Chun-Yi <jlee@suse.com> acer-wmi: add quirk table for video backlight vendor mode There have some acer laptop have broken _BCM implemenation, the AML code wrote value to EC register but firmware didn't change brighenss. Fortunately, the brightness control works on those machines with vendor mode. So, add quirk table for video backlight vendor mode and unregister acpi video interface on those machines. Tested on Acer TravelMate 4750 Cc: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: Matthew Garrett <mjg@redhat.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Lee, Chun-Yi <jlee@suse.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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H A D | Kconfig | 86924de2 Mon Mar 26 14:47:58 CDT 2012 Lee, Chun-Yi <jlee@suse.com> acer-wmi: add quirk table for video backlight vendor mode
There have some acer laptop have broken _BCM implemenation, the AML code wrote value to EC register but firmware didn't change brighenss.
Fortunately, the brightness control works on those machines with vendor mode. So, add quirk table for video backlight vendor mode and unregister acpi video interface on those machines.
Tested on Acer TravelMate 4750
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: Matthew Garrett <mjg@redhat.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Lee, Chun-Yi <jlee@suse.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> 86924de2 Mon Mar 26 14:47:58 CDT 2012 Lee, Chun-Yi <jlee@suse.com> acer-wmi: add quirk table for video backlight vendor mode There have some acer laptop have broken _BCM implemenation, the AML code wrote value to EC register but firmware didn't change brighenss. Fortunately, the brightness control works on those machines with vendor mode. So, add quirk table for video backlight vendor mode and unregister acpi video interface on those machines. Tested on Acer TravelMate 4750 Cc: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: Matthew Garrett <mjg@redhat.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Lee, Chun-Yi <jlee@suse.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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