From owner-freebsd-arm@freebsd.org  Sat Sep 26 00:24:22 2015
Return-Path: <owner-freebsd-arm@freebsd.org>
Delivered-To: freebsd-arm@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 444FEA09A61
 for <freebsd-arm@mailman.ysv.freebsd.org>;
 Sat, 26 Sep 2015 00:24:22 +0000 (UTC)
 (envelope-from venture37@gmail.com)
Received: from mail-qg0-x236.google.com (mail-qg0-x236.google.com
 [IPv6:2607:f8b0:400d:c04::236])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 06760136A
 for <freebsd-arm@freebsd.org>; Sat, 26 Sep 2015 00:24:22 +0000 (UTC)
 (envelope-from venture37@gmail.com)
Received: by qgev79 with SMTP id v79so82399594qge.0
 for <freebsd-arm@freebsd.org>; Fri, 25 Sep 2015 17:24:21 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:date:message-id:subject:from:to:content-type;
 bh=D8oQ0xQQRnzCwemLxBNxcasqaHn0id0yC8pSxBw9NAM=;
 b=teYPjrHnO9L515HVEKC23Z+rRh5AMen/0+rW7V/RBSCMiXBo+dA7qP0AuYPXfCrPxv
 AOH/InvY/utZuXyWI/wXtylnMqidDpHoBgN/aKnTnHi6U+nAsL3MpiM7JJZOv4BWL2GK
 b7K2kHVVoEWiIb1nzNq0u0ftwrcyxKrD39x0viDEFgcC7U3466QdlChmyBhmrORU+wdn
 hr40NmMOtCk0wBVktJ5tr1yuxbDOXu5BucSCvlgUhtdGLB3RokMQQW9ZsOPCBKM7vzcu
 TLE1PFLHvHiOlztE/gBrJRQNpE8pqoRC+OY9vTx4nSHHnbV4CW0p6ZbKYgNPO8iEyAjQ
 y0Bg==
MIME-Version: 1.0
X-Received: by 10.140.88.243 with SMTP id t106mr9721588qgd.44.1443227061111;
 Fri, 25 Sep 2015 17:24:21 -0700 (PDT)
Received: by 10.55.24.223 with HTTP; Fri, 25 Sep 2015 17:24:21 -0700 (PDT)
Date: Sat, 26 Sep 2015 01:24:21 +0100
Message-ID: <CA+U3Mf6yahOwpVaEDVcmWwmBg1oTD5CpaT5YES3YLR3YLkJ0XA@mail.gmail.com>
Subject: Blank screen when using a HDMI>VGA adapter with Pi
From: "Sevan / Venture37" <venture37@gmail.com>
To: freebsd-arm <freebsd-arm@freebsd.org>
Content-Type: text/plain; charset=UTF-8
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: "Porting FreeBSD to ARM processors." <freebsd-arm.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm/>
List-Post: <mailto:freebsd-arm@freebsd.org>
List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 26 Sep 2015 00:24:22 -0000

Hi,
Tonight I discovered that when I tried to use a HDMI to VGA (DB15)
adapter with to rev2 model B Raspberry Pi I'd get a blank screen.
I have access to 2 monitors, one has a HDMI port, one doesn't, so I
decided to do some testing.

HDMI > VGA adapter connected to both monitors results in a blank screen.
Connect directly via HDMI cable works fine.

The HDMI>VGA adapter works fine on both monitors if I switch from
FreeBSD-current to NetBSD 7.0 RC3 on the Pi.

Any pointers on what to try next on FreeBSD?

The adapter is labelled camac hdmi to vga, as pictured here
http://repairscomputer.co.uk/hdmi-to-vga-cable-adapter-for-pc-laptop-power-free-raspberry-pi-mhl-support

Regards,


Sevan / Venture37