From kenny@panix.com Tue Jul 15 22:46:52 2008 Return-Path: X-Original-To: tuxonice-devel@crca.org.au Delivered-To: tuxonice-devel@crca.org.au X-Bogosity: Ham, spamicity=0.000000 Received: from mail.tuxonice.net (tuxonice.net [67.207.135.122]) by crca.org.au (Postfix) with ESMTP id A9924138004 for ; Tue, 15 Jul 2008 22:46:52 +0000 (UTC) X-Bogosity: Ham, spamicity=0.000000 Received: from mail2.panix.com (mail2.panix.com [166.84.1.73]) by mail.tuxonice.net (Postfix) with ESMTP id 04E51230C2C for ; Tue, 15 Jul 2008 22:46:51 +0000 (UTC) Received: from mailbackend.panix.com (mailbackend.panix.com [166.84.1.89]) by mail2.panix.com (Postfix) with ESMTP id C16513480C for ; Tue, 15 Jul 2008 18:46:51 -0400 (EDT) Received: from 99-203-87-67.area1.spcsdns.net (99-203-87-67.area1.spcsdns.net [99.203.87.67]) by mailbackend.panix.com (Postfix) with ESMTP id 120BFDB96 for ; Tue, 15 Jul 2008 18:46:50 -0400 (EDT) Date: Tue, 15 Jul 2008 15:46:55 -0700 (PDT) From: Kenneth Crudup cc: tuxonice-devel@lists.tuxonice.net In-Reply-To: <1216157653.17202.7.camel@nigel-laptop> Message-ID: References: <20080715194823.GA11717@dose.home.local> <20080715202124.GA2549@x61> <1216157653.17202.7.camel@nigel-laptop> Errors-To: kenny@panix.com MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: Re: [TuxOnIce-devel] patch for 2.6.26 X-BeenThere: tuxonice-devel@lists.tuxonice.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: TuxOnIce Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jul 2008 22:46:52 -0000 On Wed, 16 Jul 2008, Nigel Cunningham wrote: > UseEvents true? How did you find out about that? Reading thru the .../usr/share/doc/README.txt file that comes with each unpacked NVidia driver (I'm currently up to 177.13). I do that every now and then, and found this: ---- Option "UseEvents" "boolean" Enables the use of system events in some cases when the X driver is waiting for the hardware. The X driver can briefly spin through a tight loop when waiting for the hardware. With this option the X driver instead sets an event handler and waits for the hardware through the 'poll()' system call. Default: the use of the events is disabled. ---- Before 2.6.26-rc8(? I think that's the first GIT I'd started using), this didn't work, ending up with a black, unresponsive screen on resume. There's a few other things you can put (or try; it depends on your BIOS, NVidia card and Xorg version) in your xorg to speed things up or make them more power efficient; here's what I use: ----- Section "Device" Identifier "Configured Video Device" Driver "nvidia" Option "PixmapCacheSize" "2500000" Option "AddARGBGLXVisuals" "True" Option "TripleBuffer" "True" # Experimental Option "BackingStore" "True" # Experimental Option "UseEvents" "True" Option "Coolbits" "1" Option "OnDemandVBlankInterrupts" "True" EndSection ---- "AddARGBGLXVisuals", "TripleBuffer" and "BackingStore" were recommended by some folks in the NVnews Linux forum[1], "CoolBits" allows some extra stuff (i.e. over/underclocking) to be enabled in the NVidia Control Panel- like "OnDemandVBlankInterrupts" which is nice for laptops, 'cause if you have compiz' Vblank Sync" turned off as well, you generate 60 fewer C3/C4 sleep-waking IRQ wakeups/sec, useful when running on battery. -Kenny [1] - http://www.nvnews.net/vbulletin/forumdisplay.php?f=14 -- Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Los Angeles O: 3630 S. Sepulveda Blvd. #138, L.A., CA 90034-6809 (888) 454-8181