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Superfox_il_Volpone
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Joined: 14 Aug 2012
Posts: 27

PostPosted: Mon Sep 17, 2012 3:15 pm    Post subject: webcam not recognised Reply with quote

Hi guys,
I am not able to install the webcam. I have a Microsoft Lifecam HD-6000, that is marked as supported in the UVC page: http://www.ideasonboard.org/uvc/
So I enabled the kernel driver for Video4Linux:
Device Drivers -> Multimedia Support -> Video for Linux [kernel bultin] and Video capture adapters -> V4L USB Devices [bultin]
recompiled and updated the kernel, then rebooted.
However when performing v4l-info [from media-tv/xawtv-3.95-r2] it says there is no /dev/video0 entry.

This is the output from dmesg when connecting the webcam:
Code:

[  154.012379] hub 2-0:1.0: state 7 ports 6 chg 0000 evt 0004
[  154.012388] ehci_hcd 0000:00:1d.7: GetStatus port:2 status 001803 0  ACK POWER sig=j CSC CONNECT
[  154.012396] hub 2-0:1.0: port 2, status 0501, change 0001, 480 Mb/s
[  154.116009] hub 2-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x501
[  154.167209] ehci_hcd 0000:00:1d.7: port 2 high speed
[  154.167213] ehci_hcd 0000:00:1d.7: GetStatus port:2 status 001005 0  ACK POWER sig=se0 PE CONNECT
[  154.218013] usb 2-2: new high-speed USB device number 4 using ehci_hcd
[  154.269208] ehci_hcd 0000:00:1d.7: port 2 high speed
[  154.269211] ehci_hcd 0000:00:1d.7: GetStatus port:2 status 001005 0  ACK POWER sig=se0 PE CONNECT
[  154.346606] usb 2-2: skipped 1 descriptor after configuration
[  154.346610] usb 2-2: skipped 6 descriptors after interface
[  154.346613] usb 2-2: skipped 1 descriptor after endpoint
[  154.346616] usb 2-2: skipped 28 descriptors after interface
[  154.346619] usb 2-2: skipped 1 descriptor after endpoint
[  154.346622] usb 2-2: skipped 4 descriptors after interface
[  154.346624] usb 2-2: skipped 2 descriptors after interface
[  154.346627] usb 2-2: skipped 1 descriptor after endpoint
[  154.347099] usb 2-2: default language 0x0409
[  154.348850] usb 2-2: udev 4, busnum 2, minor = 131
[  154.348854] usb 2-2: New USB device found, idVendor=045e, idProduct=076f
[  154.348857] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  154.348860] usb 2-2: Product: Microsoft® LifeCam HD-6000 for Notebooks
[  154.348862] usb 2-2: Manufacturer: Microsoft
[  154.348943] usb 2-2: usb_probe_device
[  154.348947] usb 2-2: configuration #1 chosen from 1 choice
[  154.349097] usb 2-2: adding 2-2:1.0 (config #1, interface 0)
[  154.350389] usb 2-2: adding 2-2:1.1 (config #1, interface 1)
[  154.350426] usb 2-2: adding 2-2:1.2 (config #1, interface 2)
[  154.350455] usb 2-2: adding 2-2:1.3 (config #1, interface 3)


lspci:
Code:

00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 02)
00:1a.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4
00:1a.1 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5
00:1a.2 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6
00:1a.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller
00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1
00:1c.4 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 5
00:1c.5 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 6
00:1d.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1
00:1d.1 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2
00:1d.2 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3
00:1d.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller
00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2
01:00.0 VGA compatible controller: NVIDIA Corporation G94 [GeForce 9600 GT] (rev a1)
02:00.0 Ethernet controller: Atheros Communications Inc. AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0)
03:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II / PATA Controller (rev b2)
05:00.0 Network controller: Ralink corp. RT2561/RT61 rev B 802.11g
05:03.0 FireWire (IEEE 1394): LSI Corporation FW322/323 [TrueFire] 1394a Controller (rev 70)


what am I missing?

regards
- s.fox
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eccerr0r
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Joined: 01 Jul 2004
Posts: 3964
Location: USA

PostPosted: Mon Sep 17, 2012 4:09 pm    Post subject: Reply with quote

When uvcvideo is loaded (Gentoo automatically modprobes uvcvideo), I see this:

Code:
[    8.385677] Linux video capture interface: v2.00
[    8.389370] uvcvideo 1-1.1:1.0: usb_probe_interface
[    8.389375] uvcvideo 1-1.1:1.0: usb_probe_interface - got id
[    8.389394] uvcvideo: Found UVC 1.00 device HP Truevision HD (1bcf:2c0e)

in my dmesg. Do you see

Code:
Module                  Size  Used by
uvcvideo               65919  0
videobuf2_core         18829  1 uvcvideo
videodev               88709  1 uvcvideo
videobuf2_vmalloc       2348  1 uvcvideo
videobuf2_memops        1870  1 videobuf2_vmalloc


when you run lsmod ?
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What am I supposed to be advocating?
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Superfox_il_Volpone
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Joined: 14 Aug 2012
Posts: 27

PostPosted: Wed Sep 19, 2012 7:11 am    Post subject: Reply with quote

there is a third option I was missing in the kernel :
Video capture devices -> V4L USB Drivers -> USB Video Class (UVC)

Currently the webcam only works after a reboot, then it seems to go in standby. One way to solve this issue is to manually detach and reconnect the usb cable, but is there another manner to wake it up with the software?

regards
- s.fox
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