From owner-freebsd-current@FreeBSD.ORG Wed Feb 11 15:51:27 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C94E11FF for ; Wed, 11 Feb 2015 15:51:27 +0000 (UTC) Received: from cpt-redirect03.mweb.co.za (cpt-redirect03.mweb.co.za [196.28.156.203]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 67D13213 for ; Wed, 11 Feb 2015 15:51:27 +0000 (UTC) Received: from 41-133-130-70.dsl.mweb.co.za ([41.133.130.70] helo=brane.freislich.nom.za) by cpt-redirect03.mweb.co.za with esmtp (Exim 4.84) id 1YLZQx-0007p2-JK for ; Wed, 11 Feb 2015 17:42:40 +0200 Received: from [73.20.223.245] (helo=clue.co.za) by brane.freislich.nom.za with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.84 (FreeBSD)) (envelope-from ) id 1YLZQu-000GJz-4v for freebsd-current@freebsd.org; Wed, 11 Feb 2015 17:42:33 +0200 Received: from localhost ([127.0.0.1] helo=zen) by clue.co.za with esmtp (Exim 4.85 (FreeBSD)) (envelope-from ) id 1YLZQ5-000GX8-Pk for freebsd-current@freebsd.org; Wed, 11 Feb 2015 10:41:41 -0500 To: freebsd-current@freebsd.org Subject: r277959 breaks X display on IvyBridge mobile GT2 IG From: "Ian FREISLICH" X-Attribution: BOFH MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <63552.1423669301.1@zen> Content-Transfer-Encoding: quoted-printable Date: Wed, 11 Feb 2015 10:41:41 -0500 Message-Id: X-Listed-By-SBLXBL: Host 73.20.223.245 listed at sbl-xbl.spamhaus.org (http://www.spamhaus.org/query/bl?ip=73.20.223.245) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Feb 2015 15:51:27 -0000 Hi With this commit my display blanks and never lights up when X starts. [zen] /usr/src # svn diff -r 277958:277959 Index: sys/dev/drm2/i915/intel_display.c =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- sys/dev/drm2/i915/intel_display.c (revision 277958) +++ sys/dev/drm2/i915/intel_display.c (revision 277959) @@ -6995,7 +6995,7 @@ */ I915_WRITE(BLC_PWM_CPU_CTL2, PWM_ENABLE); I915_WRITE(BLC_PWM_CPU_CTL, 0); - I915_WRITE(BLC_PWM_PCH_CTL1, PWM_ENABLE | (1<<30)); + I915_WRITE(BLC_PWM_PCH_CTL1, PWM_ENABLE); } void intel_modeset_init_hw(struct drm_device *dev) vgapci0@pci0:0:2:0: class=3D0x030000 card=3D0x15171043 chip=3D0x016680= 86 rev=3D0x09 = hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D '3rd Gen Core processor Graphics Controller' class =3D display subclass =3D VGA cap 05[90] =3D MSI supports 1 message enabled with 1 message cap 01[d0] =3D powerspec 2 supports D0 D3 current D0 cap 13[a4] =3D PCI Advanced Features: FLR TP Ian -- = Ian Freislich