From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Rc5Io-0001qq-Tg for garchives@archives.gentoo.org; Sun, 18 Dec 2011 01:12:35 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E38BB21C044; Sun, 18 Dec 2011 01:12:25 +0000 (UTC) Received: from ironport2-out.teksavvy.com (ironport2-out.teksavvy.com [206.248.154.181]) by pigeon.gentoo.org (Postfix) with ESMTP id C2EE621C044 for ; Sun, 18 Dec 2011 01:11:20 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av0EAMw87U5FxLD4/2dsb2JhbABDq1eBBoFyAQEEATocKAsLNBIUJTeHerZZiGqCN2MEiDaETikBh0+FXogehFE X-IronPort-AV: E=Sophos;i="4.71,370,1320642000"; d="scan'208";a="152764419" Received: from 69-196-176-248.dsl.teksavvy.com (HELO waltdnes.org) ([69.196.176.248]) by ironport2-out.teksavvy.com with SMTP; 17 Dec 2011 20:11:19 -0500 Received: by waltdnes.org (sSMTP sendmail emulation); Sat, 17 Dec 2011 20:10:54 -0500 From: "Walter Dnes" Date: Sat, 17 Dec 2011 20:10:54 -0500 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: -march=native is *EXTREMELY* conservative Message-ID: <20111218011054.GA2804@waltdnes.org> References: <20111217210709.GA1740@waltdnes.org> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Archives-Salt: 105d8d2e-a054-472b-82fe-8052b1850479 X-Archives-Hash: 0b8f8dfe52ad3896ce0daa0a89455786 On Sat, Dec 17, 2011 at 11:58:36PM +0200, Nikos Chantziaras wrote > The output lies. It's a known issue. Use this instead: > > echo | gcc -dM -E - -march=native > > You should see stuff like: > > #define __MMX__ 1 > #define __SSE3__ 1 The onboard GPU was initially incapable of handling 1080i video without stuttering badly and dropping frames. After explicitly changing the flags and rebuilding system+world+kernel, it displays 1080p videos flawlessly. That's one big "co-incidence". -- Walter Dnes