9780 has no PCM volume control, master volume control doesn't control the PCM, either. This feature is the same as other C-Media AC97 Codecs.
I once posted a patch that tune PCM volume in SW way (change PCM data in DMA buffer), but it was not accepted. Sincerely, ChenLi Tien -----Original Message----- From: Andre Hesling [mailto:[EMAIL PROTECTED] Sent: 2004/4/11 [星期日] 下午 03:23 To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Cc: Subject: [Alsa-devel] CMI9780 and ALSA volume control Hi! I've recently bought a new PC from a german manufacteur called Aldi/Medion. It has the CMI9780 chip on board which is fairly new and compatible to AC97. In my kernel 2.6.5-mm1 with ALSA 1.0.4rc2 I activated support for the Intel controller (intel8x0) and it seemed to work just fine. I get sound output and alsamixer has all important controls activated. But the controls "Master" and "PCM" have no function. I can only mute/unmute PCM. Master has absolutely no function. Fortunately the output level is rather high and in XMMS I can use the software mixer of the ALSA plugin. But it would be nice if I could control these things with alsamixer or such a tool. Any hints? Thank you! Here is an output of aadebug: ALSA Audio Debug v0.0.7 - So Apr 11 19:07:27 GMT 2004 http://alsa.opensrc.org/?aadebug Kernel ---------------------------------------------ALSA Audio Debug v0.0.7 - So Apr 11 19:07:27 GMT 2004 http://alsa.opensrc.org/?aadebug Kernel ---------------------------------------------------- Linux merkur 2.6.5-mm1 #2 SMP Sun Apr 11 11:50:44 GMT 2004 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz GenuineIntel GNU/Linux Loaded Modules -------------------------------------------- Modules Conf ---------------------------------------------- # $Header: /home/cvsroot/gentoo-x86/media-sound/alsa-utils/files/alsa-modules.conf-rc,v 1.1 2003/08/05 21:07:55 johnm Exp $ alias char-major-116 snd alias char-major-14 soundcore ## You need to customise this section for your specific sound card(s) ## alias snd-card-0 snd-interwave ## alias snd-card-1 snd-ens1371 ## alias sound-slot-0 snd-card-0 ## alias sound-slot-1 snd-card-1 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss ## alias sound-service-1-0 snd-mixer-oss ## alias sound-service-1-3 snd-pcm-oss ## alias sound-service-1-12 snd-pcm-oss alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss options snd cards_limit=1 Proc Asound ----------------------------------------------- Advanced Linux Sound Architecture Driver Version 1.0.4rc2 (Tue Mar 30 08:19:30 2004 UTC). Compiled on Apr 9 2004 for kernel 2.6.5-mm1 (SMP). 0 [ICH5 ]: ICH - Intel ICH5 Intel ICH5 at 0xfa801000, irq 17 1: : sequencer 0: [0- 0]: ctl 20: [0- 4]: digital audio playback 27: [0- 3]: digital audio capture 26: [0- 2]: digital audio capture 25: [0- 1]: digital audio capture 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 33: : timer 00-00: Intel ICH : Intel ICH5 : playback 1 : capture 1 00-01: Intel ICH - MIC ADC : Intel ICH5 - MIC ADC : capture 1 00-02: Intel ICH - MIC2 ADC : Intel ICH5 - MIC2 ADC : capture 1 00-03: Intel ICH - ADC2 : Intel ICH5 - ADC2 : capture 1 00-04: Intel ICH - IEC958 : Intel ICH5 - IEC958 : playback 1 Dev Snd --------------------------------------------------- controlC0 pcmC0D0p pcmC0D2c pcmC0D4p timer pcmC0D0c pcmC0D1c pcmC0D3c seq CPU ------------------------------------------------------- model name : Intel(R) Pentium(R) 4 CPU 3.00GHz model name : Intel(R) Pentium(R) 4 CPU 3.00GHz cpu MHz : 2992.756 cpu MHz : 2992.756 RAM ------------------------------------------------------- MemTotal: 515672 kB SwapTotal: 755012 kB Hardware -------------------------------------------------- 0000:00:00.0 Host bridge: Intel Corp. 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02) 0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02) 0000:02:02.0 Multimedia controller: Philips Semiconductors SAA7134 (rev 01) ------- Linux rambo 2.6.5-mm1 #2 SMP Sun Apr 11 11:50:44 GMT 2004 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz GenuineIntel GNU/Linux Loaded Modules -------------------------------------------- Modules Conf ---------------------------------------------- # $Header: /home/cvsroot/gentoo-x86/media-sound/alsa-utils/files/alsa-modules.conf-rc,v 1.1 2003/08/05 21:07:55 johnm Exp $ alias char-major-116 snd alias char-major-14 soundcore ## You need to customise this section for your specific sound card(s) ## alias snd-card-0 snd-interwave ## alias snd-card-1 snd-ens1371 ## alias sound-slot-0 snd-card-0 ## alias sound-slot-1 snd-card-1 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss ## alias sound-service-1-0 snd-mixer-oss ## alias sound-service-1-3 snd-pcm-oss ## alias sound-service-1-12 snd-pcm-oss alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss options snd cards_limit=1 Proc Asound ----------------------------------------------- Advanced Linux Sound Architecture Driver Version 1.0.4rc2 (Tue Mar 30 08:19:30 2004 UTC). Compiled on Apr 9 2004 for kernel 2.6.5-mm1 (SMP). 0 [ICH5 ]: ICH - Intel ICH5 Intel ICH5 at 0xfa801000, irq 17 1: : sequencer 0: [0- 0]: ctl 20: [0- 4]: digital audio playback 27: [0- 3]: digital audio capture 26: [0- 2]: digital audio capture 25: [0- 1]: digital audio capture 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 33: : timer 00-00: Intel ICH : Intel ICH5 : playback 1 : capture 1 00-01: Intel ICH - MIC ADC : Intel ICH5 - MIC ADC : capture 1 00-02: Intel ICH - MIC2 ADC : Intel ICH5 - MIC2 ADC : capture 1 00-03: Intel ICH - ADC2 : Intel ICH5 - ADC2 : capture 1 00-04: Intel ICH - IEC958 : Intel ICH5 - IEC958 : playback 1 Dev Snd --------------------------------------------------- controlC0 pcmC0D0p pcmC0D2c pcmC0D4p timer pcmC0D0c pcmC0D1c pcmC0D3c seq CPU ------------------------------------------------------- model name : Intel(R) Pentium(R) 4 CPU 3.00GHz model name : Intel(R) Pentium(R) 4 CPU 3.00GHz cpu MHz : 2992.756 cpu MHz : 2992.756 RAM ------------------------------------------------------- MemTotal: 515672 kB SwapTotal: 755012 kB Hardware -------------------------------------------------- 0000:00:00.0 Host bridge: Intel Corp. 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02) 0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02) 0000:02:02.0 Multimedia controller: Philips Semiconductors SAA7134 (rev 01) -- Regards, Andre ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id70&alloc_id638&op=ick _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id70&alloc_id638&op=click _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
