From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keith Packard Subject: Re: [PATCH] drm/i915/lvds: Always use the presence pin for LVDS on PCH Date: Thu, 09 Feb 2012 10:23:37 -0800 Message-ID: <86k43vdfx2.fsf@sumi.keithp.com> References: <1328780153-3945-1-git-send-email-chris@chris-wilson.co.uk> <86pqdoc4lc.fsf@sumi.keithp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from keithp.com (home.keithp.com [63.227.221.253]) by gabe.freedesktop.org (Postfix) with ESMTP id 576C49E9C6 for ; Thu, 9 Feb 2012 10:23:43 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org <#part sign=pgpmime> On Thu, 09 Feb 2012 17:33:23 +0000, Chris Wilson wrote: > > That code already existed in intel_lvds_init(): > if (HAS_PCH_SPLIT(dev)) { > if (I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0) > return false > ... > } Tricky. Do we have any idea how reliable this pin is? We've had such bad luck in the past... -- keith.packard@intel.com