From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [intel/acpi] backlight Date: Mon, 1 Dec 2008 19:32:15 +0000 Message-ID: <20081201193215.GA23773@srcf.ucam.org> References: <1227854824.3477.9.camel@hidalgo> <20081201083855.GB7380@srcf.ucam.org> <200812011127.09720.jbarnes@virtuousgeek.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:44110 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752727AbYLATcY (ORCPT ); Mon, 1 Dec 2008 14:32:24 -0500 Content-Disposition: inline In-Reply-To: <200812011127.09720.jbarnes@virtuousgeek.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Jesse Barnes Cc: Len Brown , Zhao Yakui , Yves-Alexis Perez , "linux-acpi@vger.kernel.org" On Mon, Dec 01, 2008 at 11:27:09AM -0800, Jesse Barnes wrote: > On Monday, December 1, 2008 12:38 am Matthew Garrett wrote: > > Jesse, are IRQs being delivered to the drm code when X isn't the > > foreground VT? If not, this would seem to need fixing. > > The X driver calls into the DRM to disable IRQs when it releases the VT, but > we could make that just affect vblank interrupts if needed (yay more > i915_irq.c changes). Yeah, I think that's going to be necessary unfortunately, otherwise we lose support for changing brightness outside X. -- Matthew Garrett | mjg59@srcf.ucam.org