Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161099AbVKYG3o (ORCPT ); Fri, 25 Nov 2005 01:29:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932685AbVKYG3n (ORCPT ); Fri, 25 Nov 2005 01:29:43 -0500 Received: from mail.3miasto.net ([153.19.176.2]:24793 "EHLO serwer.3miasto.net") by vger.kernel.org with ESMTP id S932684AbVKYG3n (ORCPT ); Fri, 25 Nov 2005 01:29:43 -0500 Date: Fri, 25 Nov 2005 07:29:14 +0100 (CET) From: Leszek Koltunski To: linux-kernel@vger.kernel.org Subject: Conflict between CPU Frequency scaling and snd_intel8x0m ? Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4206 Lines: 124 kernel: vanilla 2.6.14 , not tainted OS: Debian Etch, udev 073 Thinkpad R51 ************************************************************************* The problem: after compiling in CPU_FREQ, sound stops working: xmms complains about Failed to open audio device (/dev/dsp) No such device 'dsp' is indeed missing in /dev. After a 'mknod -m 660 dsp c 14 0' it does not complain any more, but even though xmms appears to be playing, no actual sound can be heard. ************************************************************************* Now, here's .config of a kernel which has sound working: http://www.3miasto.net/~leszek/config-2.6.14-sound-working In this one, sound does not work: http://www.3miasto.net/~leszek/config-2.6.14-sound-not-working The only difference between the two utumno:/home/leszek/tmp# diff config-2.6.14-sound-working config-2.6.14-sound-not-working 4c4 < # Wed Nov 9 20:45:34 2005 --- > # Fri Nov 25 12:35:25 2005 200c200,232 < # CONFIG_CPU_FREQ is not set --- > CONFIG_CPU_FREQ=y > CONFIG_CPU_FREQ_TABLE=y > # CONFIG_CPU_FREQ_DEBUG is not set > CONFIG_CPU_FREQ_STAT=y > # CONFIG_CPU_FREQ_STAT_DETAILS is not set > CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y > # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set > CONFIG_CPU_FREQ_GOV_PERFORMANCE=y > CONFIG_CPU_FREQ_GOV_POWERSAVE=y > CONFIG_CPU_FREQ_GOV_USERSPACE=y > # CONFIG_CPU_FREQ_GOV_ONDEMAND is not set > CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y > > # > # CPUFreq processor drivers > # > # CONFIG_X86_ACPI_CPUFREQ is not set > # CONFIG_X86_POWERNOW_K6 is not set > # CONFIG_X86_POWERNOW_K7 is not set > # CONFIG_X86_POWERNOW_K8 is not set > # CONFIG_X86_GX_SUSPMOD is not set > # CONFIG_X86_SPEEDSTEP_CENTRINO is not set > # CONFIG_X86_SPEEDSTEP_ICH is not set > # CONFIG_X86_SPEEDSTEP_SMI is not set > # CONFIG_X86_P4_CLOCKMOD is not set > # CONFIG_X86_CPUFREQ_NFORCE2 is not set > # CONFIG_X86_LONGRUN is not set > # CONFIG_X86_LONGHAUL is not set > > # > # shared options > # > # CONFIG_X86_SPEEDSTEP_LIB is not set is the CPU_FREQ option. ******************************************************************* utumno:/home/leszek/tmp# lsmod Module Size Used by kqemu 39112 0 radeon 103232 1 drm 62740 2 radeon lirc_sir 15360 0 lirc_dev 12644 1 lirc_sir ipt_MASQUERADE 3008 1 iptable_nat 7364 1 ip_nat 16052 2 ipt_MASQUERADE,iptable_nat ip_conntrack 44048 3 ipt_MASQUERADE,iptable_nat,ip_nat ip_tables 21824 2 ipt_MASQUERADE,iptable_nat nls_iso8859_1 3776 1 nls_cp437 5440 1 ibm_acpi 24768 0 tun 8320 0 snd_intel8x0m 14404 0 snd_intel8x0 28256 0 snd_ac97_codec 86140 2 snd_intel8x0m,snd_intel8x0 snd_ac97_bus 1792 1 snd_ac97_codec 8139too 23360 0 mii 4224 1 8139too snd_pcm 78280 3 snd_intel8x0m,snd_intel8x0,snd_ac97_codec snd_timer 20228 1 snd_pcm snd 44132 5 snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer snd_page_alloc 8136 3 snd_intel8x0m,snd_intel8x0,snd_pcm ehci_hcd 30152 0 uhci_hcd 30032 0 ipw2200 120808 0 i810_audio 33172 0 ac97_codec 16844 1 i810_audio usbcore 105984 3 ehci_hcd,uhci_hcd intel_agp 18780 1 agpgart 28232 2 drm,intel_agp serial_core 17728 0 yenta_socket 22732 3 rsrc_nonstatic 11200 1 yenta_socket ieee80211 19912 1 ipw2200 ieee80211_crypt 4228 1 ieee80211 soundcore 7392 2 snd,i810_audio **************************************************************************** I fail to see what CPU_FREQ would have to do with a working sound, so I presume it might be a bug... Leszek - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/