From owner-freebsd-hackers@freebsd.org Wed Sep 2 22:22:17 2015 Return-Path: Delivered-To: freebsd-hackers@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 7F63B9C9B84 for ; Wed, 2 Sep 2015 22:22:17 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from anubis.delphij.net (anubis.delphij.net [64.62.153.212]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "anubis.delphij.net", Issuer "StartCom Class 1 Primary Intermediate Server CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 67727985 for ; Wed, 2 Sep 2015 22:22:17 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from zeta.ixsystems.com (unknown [12.229.62.2]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by anubis.delphij.net (Postfix) with ESMTPSA id 7E60E1D7F5; Wed, 2 Sep 2015 15:22:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=delphij.net; s=anubis; t=1441232531; x=1441246931; bh=A2tlIrDLXMUhS2UYYT3zL7xVDhzp+Qsd/oSd3qq62Qk=; h=Reply-To:Subject:References:To:From:Date:In-Reply-To; b=cZjtyEzWVwsYnY2IKhSHDDRGFYLHnROh8LNxY8A79Da8EZbtXc/Mfxn/7RDGkp76T jOYkE4MlQUnKgW2DOIgml+9bzBeUpuFyY+P15luWgDrXxyTftUsZSsoVf1Zkm26UZH IShWmzf4A+hPfAXK1ok+zQosGUqK/n6qMOmZptCs= Reply-To: d@delphij.net Subject: Re: Quick question: sc(4) vs vt(4) References: To: "Pokala, Ravi" , "freebsd-hackers@freebsd.org" From: Xin Li X-Enigmail-Draft-Status: N1110 Organization: The FreeBSD Project Message-ID: <55E77692.4050709@delphij.net> Date: Wed, 2 Sep 2015 15:22:10 -0700 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="G9eeQ6Ki3tnVm4hq3Lcmb38UlOf4BIfUs" X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Sep 2015 22:22:17 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --G9eeQ6Ki3tnVm4hq3Lcmb38UlOf4BIfUs Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 09/02/15 15:13, Pokala, Ravi wrote: > Hi folks, >=20 > vt(4) says: >=20 > kern.vty > Set this value to `vt' or `sc' to override the default dri= ver > used for the system console. By default, sc(4) is used on= > com- > puters that boot from BIOS, and vt is used on computers th= at > boot > from UEFI. >=20 >=20 > Are there any known problems using vt(4) rather than sc(4) on systems > booting with BIOS? One of our folks noticed that sc(4) has a bunch of > dependencies, a bunch of which that are for obsolete hardware (AT > keyboards and their controllers, splash screens, etc), that vt(4) does = not. I don't expect any problems with it used in systems that uses BIOS. In fact, one would have to use vt if they want to use DRM2, and I personally used it for quite some time on my Lenovo T530, and there isn't any glitch related to vt(4) in the past year that I can remember. Cheers, --=20 Xin LI https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die --G9eeQ6Ki3tnVm4hq3Lcmb38UlOf4BIfUs Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.1.7 (FreeBSD) iQIcBAEBCgAGBQJV53aSAAoJEJW2GBstM+nsM7AQAJs1dGbDRfn8ajDyYlNJmlHi DQfMZtc7EWc7JIrqkf/hiSXmOsjuLyMU2uJWHHz/LoJ4e928x88rQoNfj33D2zG/ fU2Q7wZNuT4+mkmaNrv90WaPUmMrWPGrjA2e1B/AG+TY/0oYSyBrXCvTmnNyEdL5 IXbPtIMNtIOEeNZvyeY05+r/NvTznFAV2r+xgUt5TvOE93JIQllxNLPCqfVFZjVg r4QkT1z50h16MAKHC2oKF832dzNUE4wP8cCWaxVZYOQIFsI2X52YX0wCaHa3Umhh 6iaycmhJARrgnrGo2hN6HG5hwHsxPBm9C1GSTZEndSuZ9B5O8sQJtrSsuRo1We9f 4lSOAe6oMuwFS/gy9r39TZ02nKw5HO8fi9wjcv7GsveiU0H6isk8WC1gJxboqS3l yQ7LAoySxgCtR+jUCuqxVZWtUxHaQLAUdHhhvKj6/9gUU+DD5rfXHwt7wzXfEwTs VrGNhF4g1a34F+sGfnjjmhxJdBbu3jiNRVy0ZPUHyXuias5YY2pAp5is/CRoM7O5 SeTy/eaGTODWlwG+a8IieWVjI5KOONeM6PPgeABvQ7w6EZkFnonJXzEOnMm2Uv8X ve9W1+UcSDp32sXlomp+AQvovfbg0jHhDTbMrWtfaqix3P+g5LFbpLO66wQpT3+d Ow9xxuuwF+9RTcFhyZHb =2Am9 -----END PGP SIGNATURE----- --G9eeQ6Ki3tnVm4hq3Lcmb38UlOf4BIfUs--