From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268839AbUHUDnZ (ORCPT ); Fri, 20 Aug 2004 23:43:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268840AbUHUDnZ (ORCPT ); Fri, 20 Aug 2004 23:43:25 -0400 Received: from main.gmane.org ([80.91.224.249]:12425 "EHLO main.gmane.org") by vger.kernel.org with ESMTP id S268839AbUHUDnW (ORCPT ); Fri, 20 Aug 2004 23:43:22 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Kalin KOZHUHAROV Subject: Re: Audio volume poor in Linux, OK in Win2K Date: Sat, 21 Aug 2004 12:43:17 +0900 Message-ID: References: <200408201532.41296.swsnyder@insightbb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: j110113.ppp.asahi-net.or.jp User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040627 X-Accept-Language: bg, en, ja, ru, de In-Reply-To: <200408201532.41296.swsnyder@insightbb.com> X-Enigmail-Version: 0.84.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Steve Snyder wrote: > I can't seem to get much volume out of my audio controller. > > I have a dual-boot system, Win2K/SP4 and Fedora Core 2 (FC2), both with > all updates applied. The volume is fine in Win2K. In FC2, even with the > volume turned up to 100%, audio output is barely loud enough for voices > to be understood. This is true whether using the built-in speakers or > with headphones. The lack of volume is *not* application dependant. > > Prior to installing FC2, I ran RedHat Linux v9 with the most recent 2.4.x > kernel available at that time. The audio volume was also inadaquate in > this environment, yet was still fine in Win2K. > > I see no errors or warning in my system logs that might indicate any > problems with the audio driver in use. > > My hardware is a HP Presario 2570us notebook, which has an integrated ALi > M5451 audio controller. More detail: > > 00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link > Controller Audio Device (rev 02) > Subsystem: Hewlett-Packard Company: Unknown device 0850 > Flags: bus master, medium devsel, latency 64, IRQ 5 > I/O ports at 1000 > Memory at d4000000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [dc] Power Management version 2 > > These are the audio-related (kernel v2.6.8) modules seen with lsmod: > > snd_ali5451 18888 0 > snd_ac97_codec 58500 1 snd_ali5451 > snd_pcm 75912 1 snd_ali5451 > snd_page_alloc 8584 1 snd_pcm > snd_timer 18692 1 snd_pcm > snd 42596 4 > snd_ali5451,snd_ac97_codec,snd_pcm,snd_timer > soundcore 6624 1 snd > > It seems that the Linux audio subsystem is incapable of producing the > audio volume that I get in Win2K, at least with this hardware. Is there > anything I can do to get more volume in Linux? Yes, play with alsamixer and bump everything to 100% (and unmute it). Mainly I guess you forgot the PCM control. Some devicecs have "External Amplifier" switch, try that too. If you are still with problems, please do: $ alsactl -f current.conf store and attach current.conf Kalin. -- || ~~~~~~~~~~~~~~~~~~~~~~ || ( ) http://ThinRope.net/ ( ) || ______________________ ||