From owner-freebsd-questions@freebsd.org Wed Dec 16 14:54:24 2015 Return-Path: Delivered-To: freebsd-questions@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 18105A48E18 for ; Wed, 16 Dec 2015 14:54:24 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-wm0-x22a.google.com (mail-wm0-x22a.google.com [IPv6:2a00:1450:400c:c09::22a]) (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 B61061CB4 for ; Wed, 16 Dec 2015 14:54:23 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: by mail-wm0-x22a.google.com with SMTP id p187so4720481wmp.1 for ; Wed, 16 Dec 2015 06:54:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=X4ok0adwyABAeu52WsPKqeY2C4L33UqeM8QnC3iLGbo=; b=gf9GUHYwFkTJoi2s+XHME9NrEhu3wujo0d2k6WTUP9ARiF7sgrYWE1MFKBZZd4Sd2h mCCJR1XMKjxFGrYxD7dexXK6cGUvEOPKmXD6A/8bv3uznfVR1npj9sxSj0o7kY2a+KSh LRIikbnOp3dxv/pBCmARcOtSUjRJuV8J35SHfiljb28pbjAdvJ2jZrya/5UhvSUd2FuG aQ1XKOxVafbAD3iLNlCFfk5m6rAnDteCxOZXbXXuUBnvxykMZYv/J9nXB0T+g8qZ4lld vkzXefsK0dLN6JtrmCgCAsNdxK7tjUKd2Xf2ko1UP1K7ich9/+7DsZKnKNOX7m7135Fs v7EQ== MIME-Version: 1.0 X-Received: by 10.28.15.132 with SMTP id 126mr6760227wmp.80.1450277660593; Wed, 16 Dec 2015 06:54:20 -0800 (PST) Received: by 10.194.192.33 with HTTP; Wed, 16 Dec 2015 06:54:20 -0800 (PST) In-Reply-To: References: Date: Wed, 16 Dec 2015 08:54:20 -0600 Message-ID: Subject: Re: Looking for fully working Intel-based laptop From: Adam Vande More To: Anton Sayetsky Cc: FreeBSD Questions Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Dec 2015 14:54:24 -0000 On Wed, Dec 16, 2015 at 4:48 AM, Anton Sayetsky wrote: > > > > I think it switches the output between them internally when stuff like > 3D is active. > Wiki says no - output is never switches: > >When a user launches an application, the graphics driver tries to > determine whether the application would benefit from the discrete GPU. If > so, the GPU is powered up from an idle state and is passed all rendering > calls. Even in this case, though, the integrated graphics processor (IGP) > is used to output the final image. > https://en.m.wikipedia.org/wiki/Nvidia_Optimus > So one can think "unfortunately, my Hasswell/Skylake IGP isn't supported > yet, so I will use nVidia with binary driver". Then he tries and has no > success because still required to load driver for IGP even if not uses it > directly. > The white paper agrees with the wiki so I know of no modern laptop which has truly discrete graphics. Older ones did and you were able to toggle back and forth via func key or bios. I thought AMD still made some mobile CPU/s w/o integrated graphics, but maybe not. -- Adam