From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932666Ab1KBRbw (ORCPT ); Wed, 2 Nov 2011 13:31:52 -0400 Received: from home.keithp.com ([63.227.221.253]:39102 "EHLO keithp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750774Ab1KBRbu (ORCPT ); Wed, 2 Nov 2011 13:31:50 -0400 From: Keith Packard To: Adam Jackson , Jesse Barnes Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [Intel-gfx] [PATCH 3/7] drm/i915: Treat PCH eDP like DP in most places In-Reply-To: <4EB17A50.6050804@redhat.com> References: <1320214830-12696-1-git-send-email-keithp@keithp.com> <1320214830-12696-4-git-send-email-keithp@keithp.com> <20111102092019.3a635632@jbarnes-desktop> <4EB17A50.6050804@redhat.com> User-Agent: Notmuch/0.6.1-66-ga900dda (http://notmuchmail.org) Emacs/23.3.1 (i486-pc-linux-gnu) Date: Wed, 02 Nov 2011 10:31:46 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-=-= Content-Transfer-Encoding: quoted-printable On Wed, 02 Nov 2011 13:13:52 -0400, Adam Jackson wrote: > Given the choice of trusting DPCD or the VBT, I'd definitely prefer > DPCD. Except that the DPCD is coded into the monitor while the VBT is done by the platform. And, it's the platform which may neglect to connect some of the wires. In any case, if we want to look at these values, we should be doing it before computing the M/N ratio so that we actually set the hardware up correctly. Any bets on how long until we find a machine that has right value in the VBT and the wrong one in DPCD? Or a machine with wrong values in both place= s? =2D-=20 keith.packard@intel.com --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIVAwUBTrF+gjYtFsjWk68qAQjl+RAApFoiivRBPDva2PREQX0S6ZKtBILSDJUS Dhc4fPuEQHFYhWwR+S9T0nsPtdIWLbbgyrQ+uxKzkK/IKCvat5FToT32uj9bkc+q zeJZXhU1F8fQIu3RfQLkGj/DmvztS6t1K0ST5AU/no0N9UWRbACPp5dIRo+Ym7g+ qiavjFMOZ+IpnjpWq/JEOXSJIbLZ0+bxoq1gYyOZyjW5zHcnBaaMgJDawzsY/LTs ma8i2FipudlT7BgtpApuLJGv/1JImlO+07H/Rz6pNiinAIA4PX1SziOZwHGpbgIr aQHzndYYJFiYciEAvC3sOZlssy/BumAAZdjXT5InC4BvqBzBSHgNYao94uftcYSW 4sE+48qMIiU/9XSHXDBpQTOJRH5GaURMNayoAF8ptieOnFpA3hdKYvMxcXNiq0N7 ju34VCiFDnJVjyr5r/GniUM7QW+xasow+OH1apoEmh6QclLW8xRa0OHCfjk5tgID cQr6Y6hi9dW+wmDsX40lbxm1E3z8S0iPCzX4X995Mnng8Ny6k6Xr6LNWp939UWRi U0ll+kI4HoXd8CmQwsXPb/3ZuVxNNVCSerffflitgHSytMachxfRaTdZhMZDPZ1y qwoPgGFO67LXPEolk3ey6c6BJztFiDbkSmeYYZi2uLTtZPDFHZZ8v9x1pAu3QQq6 pmb3NWjuIYk= =ciXl -----END PGP SIGNATURE----- --=-=-=--