From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=209.132.183.28; helo=mx1.redhat.com; envelope-from=lersek@redhat.com; receiver=edk2-devel@lists.01.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 79BF621B02822 for ; Thu, 29 Nov 2018 02:21:49 -0800 (PST) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A36AB3082129; Thu, 29 Nov 2018 10:21:48 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-121-23.rdu2.redhat.com [10.10.121.23]) by smtp.corp.redhat.com (Postfix) with ESMTP id 64C4E4388; Thu, 29 Nov 2018 10:21:47 +0000 (UTC) To: Udit Kumar , "afish@apple.com" Cc: "Ni, Ruiyu" , "edk2-devel@lists.01.org" , "Zeng, Star" References: <2EF700E0-AF34-498C-B740-406BE5BA0839@apple.com> From: Laszlo Ersek Message-ID: <80adb57c-ffa2-d5d6-5d14-eeb9513a1328@redhat.com> Date: Thu, 29 Nov 2018 11:21:46 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Thu, 29 Nov 2018 10:21:48 +0000 (UTC) Subject: Re: Help on boot manager 'Boot Manager Menu' and direct boot X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Nov 2018 10:21:49 -0000 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit On 11/29/18 04:09, Udit Kumar wrote: > Thanks for pointers Andrew > But if I use emulated runtime variables or say efi=noruntime, I am getting same behavior. > On device tree, I see device tree same in both cases. > > In case of direct boot, only user space console is corrupted whereas kernel space console > already prints good characters. > > FYI, > Both user space and kernel space are on same kermit session I can only think of some terminal control sequences that are *not* printed to the terminal when you don't enter UiApp manually. I don't understand how that could cause the exact symptom you describe, but I have no better explanation. Can you try other serial communication programs on your desktop? Such as "minicom" or "screen"? Also, can you try changing your "console=..." kernel param(s)? Thanks Laszlo