This morning in accordance with the last paragraph in http://wiki.debian.org/DebianMultimedia/FAQ I removed the line deb http://www.deb-multimedia.org squeeze main non-free from /etc/apt/sources.list .
After updating the system and rebooting, Iceweasel produced no sound. According to http://www.opensrc.org/FAQ026, the following /etc/asound.conf should make the C-Media USB Headphone Set the default sound device. No such luck. Iceweasel still produces no sound. Either the audio data is sent to the SiS chip, which has no speaker, or something more obscure happens. In Twinkle, sound is fine as always. Pertinent information follows. Suggestions welcome. Thanks, ... Peter E. =================== "http://lists.debian.org/debian-user/2012/07/msg00091.html"; From: Andrei POPESCU <andreimpope...@gmail.com> Date: Mon, 2 Jul 2012 06:42:41 +0300 > Show us ... peter@dalton:~$ cat /proc/asound/cards 0 [SI7012 ]: ICH - SiS SI7012 SiS SI7012 with ALC655 at irq 18 1 [default ]: USB-Audio - C-Media USB Audio Device C-Media USB Audio Device at usb-0000:00:0a.0-3, full speed 2 [default_1 ]: USB-Audio - C-Media USB Headphone Set C-Media USB Headphone Set at usb-0000:00:03.2-1, full speed peter@dalton:~$ lspci -nn | grep -i audio 00:02.7 Multimedia audio controller [0401]: Silicon Integrated Systems [SiS] AC'97 Sound Controller [1039:7012] (rev a0) peter@dalton:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: SI7012 [SiS SI7012], device 0: Intel ICH [SiS SI7012] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: default [C-Media USB Audio Device ], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: default_1 [C-Media USB Headphone Set ], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 peter@dalton:~$ aplay -L null Discard all samples (playback) or generate zero samples (capture) front:CARD=SI7012,DEV=0 SiS SI7012, SiS SI7012 Front speakers surround40:CARD=SI7012,DEV=0 SiS SI7012, SiS SI7012 4.0 Surround output to Front and Rear speakers surround41:CARD=SI7012,DEV=0 SiS SI7012, SiS SI7012 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=SI7012,DEV=0 SiS SI7012, SiS SI7012 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=SI7012,DEV=0 SiS SI7012, SiS SI7012 5.1 Surround output to Front, Center, Rear and Subwoofer speakers iec958:CARD=SI7012,DEV=0 SiS SI7012, SiS SI7012 IEC958 (S/PDIF) Digital Audio Output front:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio Front speakers surround40:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio 4.0 Surround output to Front and Rear speakers surround41:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=default,DEV=0 C-Media USB Audio Device , USB Audio IEC958 (S/PDIF) Digital Audio Output front:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio Front speakers surround40:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio 4.0 Surround output to Front and Rear speakers surround41:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=default_1,DEV=0 C-Media USB Headphone Set , USB Audio IEC958 (S/PDIF) Digital Audio Output peter@dalton:~$ cat /etc/asound.conf pcm.!default { type hw card default_1 } ctl.!default { type hw card default_1 } peter@dalton:~$ lsmod | grep snd snd_usb_audio 50670 0 snd_usb_lib 11192 1 snd_usb_audio snd_seq_midi 3576 0 snd_intel8x0 19595 0 snd_seq_midi_event 3684 1 snd_seq_midi snd_ac97_codec 79152 1 snd_intel8x0 snd_rawmidi 12513 2 snd_usb_lib,snd_seq_midi ac97_bus 710 1 snd_ac97_codec snd_hwdep 4054 1 snd_usb_audio snd_pcm 47222 3 snd_usb_audio,snd_intel8x0,snd_ac97_codec snd_seq 35463 2 snd_seq_midi,snd_seq_midi_event snd_timer 12270 2 snd_pcm,snd_seq snd_seq_device 3673 3 snd_seq_midi,snd_rawmidi,snd_seq snd 34415 9 snd_usb_audio,snd_intel8x0,snd_ac97_codec,snd_rawmidi,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device snd_page_alloc 5045 2 snd_intel8x0,snd_pcm soundcore 3450 1 snd usbcore 99321 9 snd_usb_audio,snd_usb_lib,usbhid,asix,usbnet,pegasus,ohci_hcd,ehci_hcd =================== -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Telephone +13606390202. 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