From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: Rotating tablet screen updates lid state but doesn't generate an event Date: Sun, 7 Feb 2010 19:15:24 +0000 Message-ID: <20100207191524.GA19835@srcf.ucam.org> References: <478B660B.3030706@cantab.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:40094 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932960Ab0BGTP3 (ORCPT ); Sun, 7 Feb 2010 14:15:29 -0500 Content-Disposition: inline In-Reply-To: <478B660B.3030706@cantab.net> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Toby Cubitt Cc: linux-acpi@vger.kernel.org On Mon, Jan 14, 2008 at 01:39:23PM +0000, Toby Cubitt wrote: > So it seems as though acpi is correctly identifying closing the lid and > rotating the screen into tablet mode as two different types of events, > but isn't writing anything to /proc/acpi/event for the latter. On the > other hand, it is generating identical events for both opening the lid > and rotating the screen back to laptop mode. It's likely that your firmware sends some other sort of event for this. There's nothing in the ACPI spec for handing tablet state changes, so it tends to vary by vendor. > I'm happy to provide more information if it would be helpful, but I have > no experience at all in helping debug kernel code, so I'm not sure what > I should be telling you. Can you send a copy of the output of the acpidump command? -- Matthew Garrett | mjg59@srcf.ucam.org