From owner-freebsd-amd64@freebsd.org Wed May 4 05:18:13 2016 Return-Path: Delivered-To: freebsd-amd64@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 C236EB2CF96 for ; Wed, 4 May 2016 05:18:13 +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 B26361BEE for ; Wed, 4 May 2016 05:18:13 +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 u445IDn0069554 for ; Wed, 4 May 2016 05:18:13 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 209213] UEFI Loader shows only black screen - kernel output normal Date: Wed, 04 May 2016 05:18:13 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 10.3-RELEASE X-Bugzilla-Keywords: uefi, vt X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: gravity6@gmx.de X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? exp-run? mfc-stable9? mfc-stable10? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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-Mailman-Approved-At: Wed, 04 May 2016 10:54:41 +0000 X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 May 2016 05:18:13 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209213 --- Comment #1 from gravity6@gmx.de --- When booting with grub and linux i use the grub setting "GRUB_TERMINAL=3Dconsole". At the grub console by pressing "c" and typing "videoinfo" there is an empty list. The guess is, that there is no gop video mode available. Furthermore: if once queried the modes via 'videoinfo' at grub, the following boot and reboots are in 'blind mode' as grub says. First Video output comes when the nvidia xorg driver loads. To get linux kernel boot messages back, the noteb= ook has to be shutdown and started again. Maybe linux kernel parameter reboot= =3Dcold leads to the same. --=20 You are receiving this mail because: You are on the CC list for the bug.=