From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f50.google.com (mail-pb0-f50.google.com [209.85.160.50]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id D7AEEE0071A for ; Tue, 3 Dec 2013 06:49:00 -0800 (PST) Received: by mail-pb0-f50.google.com with SMTP id rr13so20993693pbb.23 for ; Tue, 03 Dec 2013 06:48:59 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :cc:subject:references:in-reply-to:content-type :content-transfer-encoding; bh=Qz8IrhL7rFvWoz65kg3PIbcbhDrfLEj74VzubIluvFc=; b=ZPi/dmGbL0zwggjJqzD4lFOOW0CsQOETDBX5x0qR6FzUs/i30QPg+sD+Bk8Cq+uf6B 3S65VdyKaA3sY9jO0B8pUh02PTF4LrbUI7onTRoZOyNi3WNClfUXtgWaZz1eSsY/LFbO k0hJ0f4OOtmfbt8PoGZD9kSxhDmyJUZj713yrxpKZ6KVP0Us5bLJnvEBlyPPBdYJNJEz 5polOL57G1siLY4S1urnaX7m03YShpEcG6eBXmAkUQ/z5UkpjrmXfrXRRxnbATcO38FL FpWD80z2eUKiXl2RCXWkFp4QhTF6S5BNDOeCemDggBx4CIW0BzqvnFwRFh/bG+BbddLq 6B+A== X-Gm-Message-State: ALoCoQl/XeXJ/ZlDFycOCbClNF+z+R/gbsjlPRECAwGUf0Q3CYrdgnIFklrgcSaI+BYKTE4dvHQO X-Received: by 10.66.139.196 with SMTP id ra4mr76227820pab.103.1386082139773; Tue, 03 Dec 2013 06:48:59 -0800 (PST) Received: from [192.168.1.8] (ip98-167-230-131.ph.ph.cox.net. [98.167.230.131]) by mx.google.com with ESMTPSA id hz10sm130557527pbc.36.2013.12.03.06.48.57 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 03 Dec 2013 06:48:58 -0800 (PST) Message-ID: <529DEF57.9040805@boundarydevices.com> Date: Tue, 03 Dec 2013 07:48:55 -0700 From: Eric Nelson User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.1 MIME-Version: 1.0 To: Tarek El-Sherbiny References: <529CBE41.2040805@boundarydevices.com> In-Reply-To: Cc: "meta-freescale@yoctoproject.org" Subject: Re: i.MX6q Boot failure using MACHINE=nitrogen6x X-BeenThere: meta-freescale@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Usage and development list for the meta-fsl-* layers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Dec 2013 14:49:02 -0000 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Tarek, On 12/03/2013 05:43 AM, Tarek El-Sherbiny wrote: > Hi Eric, > > Thank you very much for the patch. With the new kernel I don't see the > bouncing on HDMI problem. > I am using HDMI to DVI cable to test 1080 as I don't have 1080 HDMI monitor. > With the new kernel Linux does not drive the DVI monitor at all. I > switched to 720 HDMI monitor and now there is output signal but I get > horizontal scrolling lines across the screen! > I don't see this problem with u-boot or Freescale kernel. > Have you seen this problem before? > Can you forward the output from /sys/class/graphics/fb0/modes and /sys/class/graphics/fb0/mode from each of these displays? It's possible that we're blocking some of the modes because they don't support audio: https://github.com/boundarydevices/linux-imx6/commit/104d4ebfcad4021ed982ec0f436d56c3d0f44068 We added a driver parameter to the mxc_hdmi driver to force the use of CEA modes. You can override it with this kernel command-line parameter. mxc_hdmi.only_cea=0 If you're running a recent U-Boot, you can also get a list of supported modes from your monitor using these two commands: U-Boot > i2c dev 1 U-Boot > i2c edid Please advise, Eric