Date: Mon, 08 May 2017 02:49:45 +0000 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 Message-ID: <bug-219128-8@https.bugs.freebsd.org/bugzilla/>
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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.=
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