From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [REGRESSION] Media keys cause "ACPI: \_SB_.ATKD: Unsupported event" on ASUS laptop Date: Thu, 24 Apr 2014 12:51:01 +0200 Message-ID: <2784123.GhF2tcctEM@vostro.rjw.lan> References: <20140424052151.GA9449@sucs.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20140424052151.GA9449@sucs.org> Sender: linux-kernel-owner@vger.kernel.org To: Sitsofe Wheeler Cc: Mantas =?utf-8?B?TWlrdWzEl25hcw==?= , Len Brown , Robert Moore , Lv Zheng , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-acpi@vger.kernel.org On Thursday, April 24, 2014 06:21:52 AM Sitsofe Wheeler wrote: > On Thu, Apr 17, 2014 at 02:11:15PM +0300, Mantas Mikul=C4=97nas wrote= : > > After commit 1a699476e258 [two months ago], Linux has stopped > > recognizing the media & function keys on my laptop's keyboard (the > > laptop is ASUS K52JT.206). > >=20 > > When I press any of the Fn keys (Play/Pause, Stop, Prev, Next, Vol+= , > > Vol-, Mute, WiFi, Brightness +/-...), I get the following messages = in dmesg: > >=20 > > | ACPI: \_SB_.ATKD: Unsupported event type 0x45 > > | ACPI: \_SB_.ATKD: Unsupported event type 0x43 > > | ACPI: \_SB_.ATKD: Unsupported event type 0x40 > > | etc. >=20 > I'm seeing the same problem with an EeePC 900's volume and brightness > keys: > [ 90.098518] ACPI: \_SB_.ATKD: Unsupported event type 0x14 > [ 90.785202] ACPI: \_SB_.ATKD: Unsupported event type 0x15 > [ 457.062072] ACPI: \_SB_.ATKD: Unsupported event type 0x2e > [ 457.926754] ACPI: \_SB_.ATKD: Unsupported event type 0x2d > [ 458.418740] ACPI: \_SB_.ATKD: Unsupported event type 0x2c > [ 458.821482] ACPI: \_SB_.ATKD: Unsupported event type 0x2b > [ 459.240896] ACPI: \_SB_.ATKD: Unsupported event type 0x2a Does this patch help: --- drivers/acpi/bus.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) Index: linux-pm/drivers/acpi/bus.c =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- linux-pm.orig/drivers/acpi/bus.c +++ linux-pm/drivers/acpi/bus.c @@ -380,9 +380,8 @@ static void acpi_bus_notify(acpi_handle break; =20 default: - acpi_handle_warn(handle, "Unsupported event type 0x%x\n", type); - ost_code =3D ACPI_OST_SC_UNRECOGNIZED_NOTIFY; - goto err; + acpi_handle_debug(handle, "Unknown event type 0x%x\n", type); + break; } =20 adev =3D acpi_bus_get_acpi_device(handle);