From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: samsung x360, acpi support Date: Sat, 6 Dec 2008 16:42:47 +0000 Message-ID: <20081206164247.GD7623@srcf.ucam.org> References: <200812041915.39971.mheinz@cs.uni-frankfurt.de> <200812061426.08294.mheinz@cs.uni-frankfurt.de> <20081206162649.GA7623@srcf.ucam.org> <200812061733.37471.mheinz@cs.uni-frankfurt.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:35986 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751652AbYLFQmu (ORCPT ); Sat, 6 Dec 2008 11:42:50 -0500 Content-Disposition: inline In-Reply-To: <200812061733.37471.mheinz@cs.uni-frankfurt.de> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthias Heinz Cc: linux-acpi@vger.kernel.org On Sat, Dec 06, 2008 at 05:33:36PM +0100, Matthias Heinz wrote: > f0: 09 08 34 07 ff 00 00 00 a0 0f 07 00 20 10 b6 bd ^^^^^^^^^^^ Ok, that indicates that your system claims opregion support, which would explain the difference in behaviour since 2.6.26. > Interrupt enable: 00000053 > Interrupt identity: 00000000 > Interrupt mask: fffedfae > Pipe A stat: 00040000 > Pipe B stat: 00400206 And this indicates that there's a legacy backlight control event waiting to be handled, but no interrupt appears to have been raised. Does hitting the brightness key result in "Interrupts received" changing? -- Matthew Garrett | mjg59@srcf.ucam.org