![]() ![]() The problem is not dependent on the other hardware of the computer (checked with four entirely different computers).Īs it once worked a fix might be easily possible, but someone with knowledge of pulseaudio has to look into it. This applies on current Ubuntu 12.04 versions as well as on Ubuntu 14.04. ![]() I now experience the same problems as described above, with the card being only recognized as stereo device. Since some recent kernel upgrade (for ubuntu 12.04, but during spring 2014) this all vanished. Therefore I had to manually switch back to my internal soundcard, then select again the CM106 and finally adjust the volume. Minor drawback: The card was always set to max volume upon plugging in, no matter what the volume regulator said. Sometimes also the settings for the balancers got lost. Adjusting the settings or killing pulseaudio usually worked. Sometimes upon plugging in the card it was only recognized as stereo capable device or it was recoginizedas 5.1, but the stereo profile had been selected. I also tested the mic input and headphone connectors in other profiles: worked. It offered a bunch of profiles, of which I extensively used the '5.1 output only' one. On Ubuntu 12.04 (original release) it was recognized and worked. It is used in external sound cards etc., offering up to 7.1 audio channles, mic + line in, microphone and headphone connectors. I can confirm there is something wrong with this USB audio Chipset. ![]() ProcVersionSign ature: Ubuntu 2.6.32- 16.25-generic dev/snd/pcmC0D0c: jeff 1115 F.m pulseaudioĬard hw:0 'ICH6'/'Intel ICH6 with AD1981B at irq 22'Ĭard hw:1 'default'/'USB Sound Device at usb-0000:00:1d.1-2, full speed' On a third computer, a laptop with onboard stereo, this usb sound card exhibits the same problem: it is recognized only as stereo.ĪlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. On another computer running ubuntu 9.10 (a desktop with an onboard ICH9 surround card), this is correctly recognized as 5.1 capable, no matter what system account I am using (so it's not a configuration issue) My usb CM106 card is 5.1 capable but pavucontrol and gnome-volume- control will only let me set it as if it was a stereo device. ![]()
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