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I was having a problem where once I booted into windows and than booted into Arch the sound in arch would no longer work becuase the default audio device had somehow been set to my webcam. The first time I experience this issue I nuked and reloaded Arch. After the Second time I did some digging and decided that I might be able to solve the problem by loading the usb audio module later so I modified my /etc/modprobe.d/modprobe.conf to look like the following:
#
# /etc/modprobe.d/modprobe.conf (for v2.6 kernels)
#
options snd-pscp index=2
options snd-usb-audio index=1
That solved the problem but now my webcam's mic doesn't show up in Skype and alsamixer, the camera part works though and the mic was working before the "fix".
Specifics on my Setup:
Architecture: x86_64
Webcam: Logitech Quickcam Pro 9000
Motherboard: I don't know the specific model but its a Gigabyte AM2+/AM3 Socket with (I think) a 785 chipset
Windows Version(IDK why this would matter but I'm trying to be thorough): Windows 7 Home Premium 64bit
output of lsmod:
Module Size Used by
nls_utf8 1288 1
udf 82297 1
fuse 62808 3
ipv6 282668 16
joydev 9927 0
usbhid 38960 0
hid 75944 1 usbhid
snd_seq_dummy 1463 0
snd_usb_audio 85375 0
snd_seq_oss 28792 0
uvcvideo 60339 0
snd_usbmidi_lib 18244 1 snd_usb_audio
snd_hda_codec_atihdmi 2739 1
snd_seq_midi_event 5436 1 snd_seq_oss
snd_hda_codec_realtek 269269 1
snd_rawmidi 19237 1 snd_usbmidi_lib
snd_seq 50146 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
videodev 44108 1 uvcvideo
v4l1_compat 15610 2 uvcvideo,videodev
v4l2_compat_ioctl32 10633 1 videodev
snd_seq_device 5297 4 snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq
snd_pcm_oss 39189 0
snd_hda_intel 22285 6
snd_mixer_oss 17106 1 snd_pcm_oss
snd_hda_codec 77223 3 snd_hda_codec_atihdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 6110 2 snd_usb_audio,snd_hda_codec
radeon 888585 2
snd_pcm 71445 5 snd_usb_audio,snd_pcm_oss,snd_hda_intel,snd_hda_codec
ohci_hcd 21879 0
snd_timer 19265 3 snd_seq,snd_pcm
ttm 52920 1 radeon
drm_kms_helper 24903 1 radeon
edac_core 35286 0
ehci_hcd 37024 0
snd 57626 24 snd_usb_audio,snd_seq_oss,snd_usbmidi_lib,snd_hda_codec_realtek,snd_rawmidi,snd_seq,snd_seq_device,snd_pcm_oss,snd_hda_intel,snd_mixer_oss,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 6065 1 snd
snd_page_alloc 7249 2 snd_hda_intel,snd_pcm
drm 164578 5 radeon,ttm,drm_kms_helper
edac_mce_amd 6929 0
usbcore 146545 7 usbhid,snd_usb_audio,uvcvideo,snd_usbmidi_lib,ohci_hcd,ehci_hcd
button 4834 0
ppdev 5870 0
lp 9024 0
evdev 8775 11
i2c_piix4 8992 0
k10temp 2915 0
psmouse 54040 0
parport_pc 31576 1
r8169 38110 0
i2c_algo_bit 5231 1 radeon
parport 29607 3 ppdev,lp,parport_pc
firewire_ohci 23483 0
pcspkr 1819 0
serio_raw 4486 0
mii 3826 1 r8169
i2c_core 18987 6 videodev,radeon,drm_kms_helper,drm,i2c_piix4,i2c_algo_bit
processor 28966 0
firewire_core 44810 1 firewire_ohci
crc_itu_t 1297 2 udf,firewire_core
thermal 12338 0
sg 25652 0
wmi 6894 0
rtc_cmos 9022 0
rtc_core 14439 1 rtc_cmos
rtc_lib 1898 1 rtc_core
ext4 310908 1
mbcache 5746 1 ext4
jbd2 69523 1 ext4
crc16 1297 1 ext4
sr_mod 14954 1
sd_mod 29536 3
cdrom 35851 1 sr_mod
ahci 20929 2
pata_atiixp 3833 1
libahci 18846 1 ahci
pata_acpi 3248 0
floppy 57022 0
libata 157227 4 ahci,pata_atiixp,libahci,pata_acpi
scsi_mod 124384 4 sg,sr_mod,sd_mod,libata
Output of lspci:
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge Alternate
00:02.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (ext gfx port 0)
00:0a.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 5)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [IDE mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3c)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Link Control
01:00.0 VGA compatible controller: ATI Technologies Inc RV710 [Radeon HD 4350]
01:00.1 Audio device: ATI Technologies Inc RV710/730
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
03:0e.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
I'm probably going a bit overboard with providing specifics but I don't think it can hurt. Let me know if you need some other information.
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I guess this is the same as this one (or at least related to): https://bbs.archlinux.org/viewtopic.php?id=122206
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