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Stranger_RA

Member

Registered: 2017-02-08

Posts: 4

[Solved] - Lenovo ThinkPad E450 web-camera trouble

Hi guys,
I have a problem with my laptop, integrated web-camera didn't work.

serg ~ $ lsusb
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 005: ID 5986:055a Acer, Inc
Bus 002 Device 004: ID 0bda:b728 Realtek Semiconductor Corp.
Bus 002 Device 003: ID 138a:0011 Validity Sensors, Inc. VFS5011 Fingerprint Reader
Bus 002 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

if I execute guvcview on terminal, I see:
serg ~ $ guvcview
GUVCVIEW: version 2.0.4
V4L2_CORE: ERROR opening V4L interface: No such file or directory
GUVCVIEW (1): Guvcview error
     no video device found
(guvcview:8659): Gtk-WARNING **: Theme parsing error: <data>:1:17: not a number
(guvcview:8659): Gtk-WARNING **: Theme parsing error: <data>:1:31: Using Pango syntax for the font: style property is deprecated; please use CSS syntax
(guvcview:8659): Gtk-WARNING **: Theme parsing error: <data>:1:17: not a number
(guvcview:8659): Gtk-WARNING **: Theme parsing error: <data>:1:32: Using Pango syntax for the font: style property is deprecated; please use CSS syntax
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

cheese show me information "No device found"

I didn't find vide0 in /dev/ but after reboot I check dmesg and I see:

[    4.175988] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3:1.0/0003:046D:C52F.0001/input/input15
[    4.176070] hid-generic 0003:046D:C52F.0001: input,hidraw0: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:14.0-3/input0
[    4.176831] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3:1.1/0003:046D:C52F.0002/input/input16
[    4.183376] usbcore: registered new interface driver btusb
[    4.184436] uvcvideo: Found UVC 1.00 device Integrated Camera (5986:055a)
[    4.184476] uvcvideo: No valid video chain found.
[    4.184508] usbcore: registered new interface driver uvcvideo
[    4.184509] USB Video Class driver (1.1.1)
[    4.186238] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723

Please help me

Last edited by Stranger_RA (2017-03-19 13:41:09)

progandy

Member

Registered: 2012-05-17

Posts: 5,190

Re: [Solved] - Lenovo ThinkPad E450 web-camera trouble

Please check your kernel version with "uname -r", which version are you using? The fix should be included since v4.10.

[~/git/linux] % git log --grep 5986:055a
commit e950267ab802c8558f1100eafd4087fd039ad634
Author: Henrik Ingo <henrik.ingo@avoinelama.fi>
Date:   Sun May 29 17:58:00 2016 -0300

    [media] uvcvideo: uvc_scan_fallback() for webcams with broken chain
    
    Some devices have invalid baSourceID references, causing uvc_scan_chain()
    to fail, but if we just take the entities we can find and put them
    together in the most sensible chain we can think of, turns out they do
    work anyway. Note: This heuristic assumes there is a single chain.
    
    At the time of writing, devices known to have such a broken chain are
      - Acer Integrated Camera (5986:055a)
      - Realtek rtl157a7 (0bda:57a7)
    
    Signed-off-by: Henrik Ingo <henrik.ingo@avoinelama.fi>
    Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
    Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

[~/git/linux] % git tag --contains e950267ab802c8558f1100eafd4087fd039ad634   
v4.10
v4.10-rc1
v4.10-rc2
v4.10-rc3
v4.10-rc4
v4.10-rc5
v4.10-rc6
v4.10-rc7
v4.10-rc8
v4.10.1

Last edited by progandy (2017-03-02 23:57:56)

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Stranger_RA

Member

Registered: 2017-02-08

Posts: 4

Re: [Solved] - Lenovo ThinkPad E450 web-camera trouble

uname -r
4.9.11-1-ARCH

progandy

Member

Registered: 2012-05-17

Posts: 5,190

Re: [Solved] - Lenovo ThinkPad E450 web-camera trouble

That means you'll have to wait for 4.10.1 to move from testing to stable or move your system to the testing repository. You can also try to take only the kernel from testing, e.g. download it from the package listing, but that is unsupported.

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Stranger_RA

Member

Registered: 2017-02-08

Posts: 4

Re: [Solved] - Lenovo ThinkPad E450 web-camera trouble

After upgrade kernel to 4.10.1 issue has solved.