Date: Sat, 13 May 2006 23:38:05 +0200 From: martinko <martinkov@pobox.sk> To: freebsd-x11@freebsd.org Cc: freebsd-questions@freebsd.org Subject: Re: X11 6.9 issue -- options "AGPMode" and "AGPFastWrite" Message-ID: <446651BD.3030906@pobox.sk> In-Reply-To: <1147390034.9156.5.camel@thompson> References: <445E4FCC.10605@pobox.sk> <1147390034.9156.5.camel@thompson>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?446651BD.3030906>