From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [intel/acpi] backlight Date: Mon, 1 Dec 2008 11:27:09 -0800 Message-ID: <200812011127.09720.jbarnes@virtuousgeek.org> References: <1227854824.3477.9.camel@hidalgo> <20081201083855.GB7380@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from outbound-mail-19.bluehost.com ([69.89.20.234]:59838 "HELO outbound-mail-19.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752187AbYLATdv (ORCPT ); Mon, 1 Dec 2008 14:33:51 -0500 In-Reply-To: <20081201083855.GB7380@srcf.ucam.org> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: Len Brown , Zhao Yakui , Yves-Alexis Perez , "linux-acpi@vger.kernel.org" On Monday, December 1, 2008 12:38 am Matthew Garrett wrote: > On Sun, Nov 30, 2008 at 10:28:30PM -0500, Len Brown wrote: > > (Cc:ing Jesse) > > > in single user mode, i915 is not loaded, > > /sys/class/backlight/acpi_video0 does NOT work > > > > modprobe of i915 does not change this. > > 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). Jesse