From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265175AbUGUKpd (ORCPT ); Wed, 21 Jul 2004 06:45:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266481AbUGUKpd (ORCPT ); Wed, 21 Jul 2004 06:45:33 -0400 Received: from imap.gmx.net ([213.165.64.20]:19689 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S265175AbUGUKpb (ORCPT ); Wed, 21 Jul 2004 06:45:31 -0400 X-Authenticated: #4399952 Date: Wed, 21 Jul 2004 12:53:52 +0200 From: Florian Schmidt To: "The Linux Audio Developers' Mailing List" Cc: rlrevell@joe-job.com, Andrew Morton , linux-kernel Subject: Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch Message-Id: <20040721125352.7e8e95a1@mango.fruits.de> In-Reply-To: <1090369957.841.14.camel@mindpipe> References: <20040712163141.31ef1ad6.akpm@osdl.org> <1090306769.22521.32.camel@mindpipe> <20040720071136.GA28696@elte.hu> <200407202011.20558.musical_snake@gmx.de> <1090353405.28175.21.camel@mindpipe> <40FDAF86.10104@gardena.net> <1090369957.841.14.camel@mindpipe> X-Mailer: Sylpheed version 0.9.11claws (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 20 Jul 2004 20:32:37 -0400 Lee Revell wrote: > > Yes, this is important. One problem I had recently with the Via EPIA > board was that unless 2D acceleration was disabled by setting 'Option > "NoAccel"' in /etc/X11/XF86Config-4, overloading the X server would > cause interrupts from the soundcard to be completely disabled for tens > of milliseconds. Users should keep in mind that by using 2D or 3D > hardware acceleration in X, you are allowing the X server to directly > access hardware, which can have very bad results if the driver is > buggy. I am not sure the kernel can do anything about this. Hi, interesting that you mention the Xserver. I use a dual graphics card setup atm [Nvidia GF3 TI and some matrox pci card]. The nvidia card seems to work flawlessly even with HW accelleration [i use nvidias evil binary only drivers]. The matrox card OTH disturbs the soundcard severely. Whenever i have activity on my second monitor i get sound artefacts in jack's output [no cracklling, it's rather as if the volume is set to 0 for short moments and then back to normal]. There's a certain chance that this artefact produces an xrun. I suppose it's because the card is on the pci bus. I figured it's maybe an irq issue problem, but whatever slot i put the gfx card in - it made no difference [btw: how do i find out which resources this card uses? it is not shown by /proc/interrupts]. I also tried putting the soundcard in many different slots to maybe get it on higher prio irq, but it always gets irq 5 [according to /proc/interrupts].. Should i try a different 2nd gfx card? Should i avoid pci gfx cards at all costs? Will i just have to live w/o second monitor? How do i find out which hw resources X is really using? Florian Schmidt -- Palimm Palimm! Sounds/Ware: http://affenbande.org/~tapas/