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v_andal Guru
Joined: 26 Aug 2008 Posts: 541 Location: Germany
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Posted: Tue Dec 11, 2012 7:42 am Post subject: skype does not see USB microphone on startup |
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I got really weird problem. I use Logitech Webcam with built-in microphone. Until recently Skype didn't have any issues using it. Everything changed after latest upgrade (to version 4.1.0.20). Now when I start it, microphone does not work. If I reapply configuration (for example clear "Allow Skype automatically adjust my mixer levels" and hit Apply), then everything starts working again. (Next time I set that option again, to get things working )
All I see on stderr are messages
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
Besides, Skype constantly uses about 2-3% of CPU, but that might be not related to the problem.
Any advice?
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% cat /proc/asound/cards
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xfe420000 irq 47
1 [U0x46d0x9a4 ]: USB-Audio - USB Device 0x46d:0x9a4
USB Device 0x46d:0x9a4 at usb-0000:00:1a.0-1.3, high speed
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% lsusb
Bus 001 Device 003: ID 046d:09a4 Logitech, Inc. QuickCam E 3500
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audiodef Watchman
Joined: 06 Jul 2005 Posts: 6639 Location: The soundosphere
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v_andal Guru
Joined: 26 Aug 2008 Posts: 541 Location: Germany
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Posted: Wed Dec 12, 2012 7:48 am Post subject: |
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Well, so far I've downgraded Skype to previous version. I guess I'll wait till next version comes out and see how that one will perform. |
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audiodef Watchman
Joined: 06 Jul 2005 Posts: 6639 Location: The soundosphere
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Fred Krogh Veteran
Joined: 07 Feb 2005 Posts: 1036 Location: Tujunga, CA
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Posted: Fri Dec 14, 2012 9:58 pm Post subject: |
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If you updated your kernel to 3.7.0 recently, you may want to look there. I had the same problem and discovered under Device Drivers, Multimedia support, enabling Media USB Adapters, and GSPCA based webcams (maybe not necessary?) fixed my problem (after recompiling the kernel and rebooting of course).
Fred |
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zwede Tux's lil' helper
Joined: 03 Jan 2006 Posts: 103
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Posted: Sun Dec 16, 2012 8:10 pm Post subject: |
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In my case I had to go to Multimedia support->Media USB Adapters and select "USB Video Class (UVC)", CONFIG_USB_VIDEO_CLASS.
I had it working fine in 3.6.6 and the options were selected in 3.6.6. But during the "make oldconfig" for 3.7.0 it seems to have deselected itself? I did not have to select "GSPCA", btw.
My webcam is a Logitech. |
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v_andal Guru
Joined: 26 Aug 2008 Posts: 541 Location: Germany
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Posted: Mon Dec 17, 2012 8:05 am Post subject: |
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No, I still have 3.5.7 and as far as I can see Multimedia support section does not have Media USB Adapters.
Well, maybe newer Skype uses some new features from newer kernels, that are not available in mine. So in this case downgrading is the proper way to handle things, since I use "stable" gentoo-sources and "development" version of Skype. |
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