From owner-freebsd-bugs@freebsd.org Mon May 8 02:49:46 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 03959D6230A for ; Mon, 8 May 2017 02:49:45 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (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 94F8A1CBA for ; Mon, 8 May 2017 02:49:45 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v482njf7008738 for ; Mon, 8 May 2017 02:49:45 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 219128] Mini-DP to VGA adapter doesn't work on FreeBSD 11.0-R Date: Mon, 08 May 2017 02:49:45 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: naito.yuichiro@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 May 2017 02:49:46 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219128 Bug ID: 219128 Summary: Mini-DP to VGA adapter doesn't work on FreeBSD 11.0-R Product: Base System Version: 11.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: naito.yuichiro@gmail.com Created attachment 182379 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D182379&action= =3Dedit dmesg.log I'm using Macbook Air 2012 for FreeBSD-11.0R. I found my Mini-DisplayPort to VGA adapter doesn't work to add second display for my presentation. I don't think my adapter is broken, because I rebooted my Macbook Air with OS X, it works. And I remember my adapter worked on FreeBSD-10.3R. On my FreeBSD-11.0R, I've seen following dmesg, since I attached the adapter. ``` $ dmesg | tail -5 error: [drm:pid0:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up error: [drm:pid0:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up error: [drm:pid0:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up error: [drm:pid0:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up error: [drm:pid0:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up $ uname -a FreeBSD air 11.0-RELEASE-p9 FreeBSD 11.0-RELEASE-p9 #0: Tue Apr 11 08:48:40= UTC 2017 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC a= md64 ``` According to `https://wiki.freebsd.org/Intel_GPU`, I got debug messages with `sysctl hw.dri.debug=3D2`. See the attached `dmesg.log` file. For my hardware information, I attach `devinfo.log` and `pciconf.log`. For software information, I attach `kldstat.log`, `pkginfo.log` and `Xorg.0.log`. --=20 You are receiving this mail because: You are the assignee for the bug.=