From owner-freebsd-questions@FreeBSD.ORG Sat May 13 21:38:45 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BD10D16A405 for ; Sat, 13 May 2006 21:38:45 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 19CAE43D46 for ; Sat, 13 May 2006 21:38:44 +0000 (GMT) (envelope-from freebsd-questions@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Ff1oq-0004jq-Kx for freebsd-questions@freebsd.org; Sat, 13 May 2006 23:38:36 +0200 Received: from r5k156.chello.upc.cz ([86.49.10.156]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 13 May 2006 23:38:36 +0200 Received: from martinkov by r5k156.chello.upc.cz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 13 May 2006 23:38:36 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: martinko Date: Sat, 13 May 2006 23:38:05 +0200 Lines: 38 Message-ID: <446651BD.3030906@pobox.sk> References: <445E4FCC.10605@pobox.sk> <1147390034.9156.5.camel@thompson> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: r5k156.chello.upc.cz User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.0.2) Gecko/20060511 SeaMonkey/1.0.1 In-Reply-To: <1147390034.9156.5.camel@thompson> Sender: news Cc: freebsd-x11@freebsd.org Subject: Re: X11 6.9 issue -- options "AGPMode" and "AGPFastWrite" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 May 2006 21:38:46 -0000 Eric Anholt wrote: > On Sun, 2006-05-07 at 21:51 +0200, martinko wrote: >> hello list! >> >> i've just upgraded X11 from 6.8.2 to 6.9.0 and run into the following issue: >> >> after starting x11 for the first time the screen went black and console >> was inaccessible (i had to reboot). when i tried the generated xorg.conf >> (`Xorg -configure`) it worked. so i started comparing my old config file >> with the new one and found out that the following two options i had been >> using are the root of the problem: >> Option "AGPMode" "4" # ++ 2005-02-11 mato >> Option "AGPFastWrite" # ++ 2005-02-11 mato >> they just cannot be set both at the same time now. >> and i wonder why. >> and also i wonder which one to comment out and which one to keep (if any >> at all). > > Comment them both out and live a happier life with a more stable > computer. In my testing (and as far as I know, I'm the only one who has > done performance comparisons with AGPMode), AGPMode 4 provided no > meaningful performance improvement except under contrived circumstances. > AGPFastWrite is the most unstable option ever, and I couldn't benchmark > because it crashes. We've threatened to just disconnect these options > upstream and not tell anyone, because they're that harmful but people > seem to think they're secret performance sauce that the developers don't > want to give them. > eric, thank you! could i take this opportunity and ask you about 2 other options i've been using? -- EnablePageFlip and DynamicClocks -- are they safe/useful? cheers, martin