From owner-freebsd-bugs Mon Sep 24 20: 0: 7 2001 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (unknown [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id BD3AF37B41C for ; Mon, 24 Sep 2001 20:00:00 -0700 (PDT) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.4/8.11.4) id f8P300G30411; Mon, 24 Sep 2001 20:00:00 -0700 (PDT) (envelope-from gnats) Received: from meta.lo-res.org (meta.lo-res.org [195.58.189.92]) by hub.freebsd.org (Postfix) with ESMTP id 5F58637B41C for ; Mon, 24 Sep 2001 19:56:50 -0700 (PDT) Received: (from aaron@localhost) by meta.lo-res.org (8.11.6/8.11.6) id f8P31wQ85664; Tue, 25 Sep 2001 05:01:58 +0200 (CEST) (envelope-from aaron) Message-Id: <200109250301.f8P31wQ85664@meta.lo-res.org> Date: Tue, 25 Sep 2001 05:01:58 +0200 (CEST) From: aaron Reply-To: aaron To: FreeBSD-gnats-submit@freebsd.org X-Send-Pr-Version: 3.113 Subject: i386/30808: t4dwave on Acer Alladin M5451 interrupt problem Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >Number: 30808 >Category: i386 >Synopsis: t4dwave on Acer Alladin M5451 interrupt problem >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Sep 24 20:00:00 PDT 2001 >Closed-Date: >Last-Modified: >Originator: aaron >Release: FreeBSD 4.4-RELEASE i386 >Organization: home >Environment: System: FreeBSD chillig.lo-res.org 4.4-RELEASE FreeBSD 4.4-RELEASE #1: Tue Sep 25 04:32:19 CEST 2001 root@chillig.lo-res.org:/usr/src/sys/compile/chillig i386 >Description: Running an Acer TravelMate 512TE. sound output is only _sometimes_ possible. The TravelMate uses an Acer M5451 sound chip. however if I kldload snd_t4dwave.ko I sometimes get the message: pcm0: play interrupt timeout, channel dead I highly assume this is because of IRQ sharing between the soundcard and the graphics card (both are on IRQ 10), grfx card is: ATI Rage Mobility Pro On other occasions sound will work - but only for the first time. After opening the device and closing it the next open will result in no sound output. I did a comparison: 5.0-current works with this laptop. sound plays perfectly and every time. But rest assured, commercial OSS is far behind in supporting that irq-sharing monster :] >How-To-Repeat: share interrupts with sound card. kldload t4dwave for an M5451 chip based sound card try to play some wav/mp3 observe kern logs >Fix: no fix known. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message