From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keith Packard Subject: Re: [PATCH] drm/i915: prefer wide & slow to fast & narrow in DP configs Date: Thu, 21 Jun 2012 18:13:19 -0700 Message-ID: <86pq8sqhcg.fsf@sumi.keithp.com> References: <1340316830-15601-1-git-send-email-jbarnes@virtuousgeek.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1971789459==" Return-path: Received: from keithp.com (home.keithp.com [63.227.221.253]) by gabe.freedesktop.org (Postfix) with ESMTP id 6C6889E93C for ; Thu, 21 Jun 2012 18:21:15 -0700 (PDT) In-Reply-To: <1340316830-15601-1-git-send-email-jbarnes@virtuousgeek.org> 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: Jesse Barnes , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org --===============1971789459== Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" --=-=-= Content-Transfer-Encoding: quoted-printable Jesse Barnes writes: > High frequency link configurations have the potential to cause trouble > with long and/or cheap cables, so prefer slow and wide configurations > instead. This patch has the potential to cause trouble for eDP > configurations that lie about available lanes, so if we run into that we > can make it conditional on eDP. I *have* run into this on eDP machines already, which is why the code loops this way today... =2D-=20 keith.packard@intel.com --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUBT+PGrzYtFsjWk68qAQgAhw//fuGFBem/LHSEEM26CCUuuAPeL5nVwshU Uo5y9GwNUQI3UZTktFHw9sUJNu+YBpMpugCHKqQ2u/qiQqHNjiq5rYYfWgvHVM+F QrhqZZZnBK93BF4gdLrDVxC2ZnLArqzytMqBbj29qGk33sfDqik33XsX6oGDUqHz iA06O9g30bk9e1wwvC94sRAGQZIvOXWodJgAmRcuIZ4uEAgTEIzpLRA9Q6M/MCGY BGvRVvXwv9HaVrdxbonKaYPPvmkzGZFCOFTLNOriE074YA0rJFGXLmdrjQ/rSjfi VpNIfiYZiuGcvuCiN3ICk1ivf1fDHmOf5ooJUBeGM6e2atETva4xWByyOkjb5AJf ISyKagZwhUsiNpIf22gYADiTVjYHSJ5L958ifR6rxL/1EIitqUN/2RQacMu/b3Mm po2la5EuLAPc5tzU2XIw0ModAMQUU5E5rWUQ7+Dvhfy+XruRkG9Tgmu2PawhqTcn yGjuh8W9T+y0MobR6S9eiGKMMqLy+7L/vJomuBqeBrP12enQHJNdHwcYOp0eEmeP QX9Hze0EV/wGbiRFh18wxDgeoWVvBz1ALprkwi4s2RS3Lk1B1Bn6ik1NInjOQ/BW xmSqQKm29ubLCUEjSj+Tf1yvc6D5faRxSjTcnN+0QlVXVrK7IVBEiuiq+5eNDstE BV8uScDYJaU= =QpfK -----END PGP SIGNATURE----- --=-=-=-- --===============1971789459== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx --===============1971789459==--