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As I switched from gnome and wayland to xfce / i3 and X11 I noticed that my USB-keyboard and -mouse would not connect after some time had passed after boot. If they where connected during boot there was never any problems.
After som help from the IRC chat I was able to discover that the webcam was filling up the xinput list making it impossible to connect additional devices. If I disable the device with xinput then that id frees up and a new instance of the webcam claims that id. It was suggested that this was a hardware issue, but could there be other reasons for this? If it is in fact a hardware issue I would rather just have the device ignored than starting to mess with the laptop screen lid. I rarely have use for a webcam.
It seems that this is a temporary fix for the issue, allthough it is hard to confirm since the issue is not very consistant. For instance yesterday I had no issues the whole day, but this morning it started malfunctioning almost right away. Where would I put this or something similar to make it a more permanent solution? ~/.xprofile?
# echo 0 > /sys/bus/usb/devices/1-1.3/authorization EDIT: I have a ASUS Zenbook u500VZ
I have googled the output from dmesg but haven't found much useful information. The posts I found where either unaswered or the solution didn't work. For insance, one thread mentions installing v4l-utils, which I discovered was already installed on my system.
As can be seen in the outputs below, from when the issue has appeared, the device actually seems to disappear from the lsusb[.py] list when malfunctioning. The "bus number" also disappears from the /sys/bus/usb/device/ directory so it can't really be done aft
What could be the reason this happens only in X11 and not Wayland?
Any information about how to troubleshoot this further would be greatly appreciated!
Here are the outputs from when everything is working just after boot:
$ lsusb.py -i
usb3 1d6b:0002 09 2.00 480MBit/s 0mA 1IF (Linux 4.14.15-1-ARCH xhci-hcd xHCI Host Controller 0000:00:14.0) hub
3-3 2109:3431 09 2.00 480MBit/s 100mA 1IF (VIA Labs, Inc. Hub) hub
3-3.1 04b4:0101 00 1.10 1.5MBit/s 60mA 2IFs (DATACOMP SteelS쀁̄Љ̒DATA)
3-3.1:1.0 (IF) 03:01:01 1EP (Human Interface Device:Boot Interface Subclass:Keyboard) usbhid
3-3.1:1.1 (IF) 03:01:02 1EP (Human Interface Device:Boot Interface Subclass:Mouse) usbhid
3-3.2 1038:1369 00 1.10 12MBit/s 200mA 4IFs (SteelSeries Sensei Raw Gaming Mouse)
3-3.2:1.2 (IF) 03:01:01 1EP (Human Interface Device:Boot Interface Subclass:Keyboard) usbhid
3-3.2:1.0 (IF) 03:00:00 1EP (Human Interface Device:No Subclass:None) usbhid
3-3.2:1.3 (IF) 03:00:01 1EP (Human Interface Device:No Subclass:Keyboard) usbhid
3-3.2:1.1 (IF) 03:01:02 1EP (Human Interface Device:Boot Interface Subclass:Mouse) usbhid
usb1 1d6b:0002 09 2.00 480MBit/s 0mA 1IF (ehci_hcd 0000:00:1a.0) hub
1-1 8087:0024 09 2.00 480MBit/s 0mA 1IF (Intel Corp. Integrated Rate Matching Hub) hub
1-1.3 04f2:b36e ef 2.00 480MBit/s 500mA 2IFs (Chicony Electronics Co.,Ltd. USB2.0 HD UVC WebCam 200901010001)
1-1.3:1.0 (IF) 0e:01:00 1EP (Video:Video Control)
1-1.3:1.1 (IF) 0e:02:00 0EPs (Video:Video Streaming) uvcvideo
1-1.1 8087:07da e0 2.00 12MBit/s 0mA 2IFs (Intel Corp.)
1-1.1:1.1 (IF) e0:01:01 2EPs (Wireless:Radio Frequency:Bluetooth) btusb
1-1.1:1.0 (IF) e0:01:01 3EPs (Wireless:Radio Frequency:Bluetooth) btusb bluetooth/hci0
usb4 1d6b:0003 09 3.00 5000MBit/s 0mA 1IF (Linux 4.14.15-1-ARCH xhci-hcd xHCI Host Controller 0000:00:14.0) hub
4-3 2109:0810 09 3.00 5000MBit/s 8mA 1IF (VIA Labs, Inc. 4-Port USB 3.0 Hub) hub
usb2 1d6b:0002 09 2.00 480MBit/s 0mA 1IF (ehci_hcd 0000:00:1d.0) hub
2-1 8087:0024 09 2.00 480MBit/s 0mA 1IF (Intel Corp. Integrated Rate Matching Hub) hub
2-1.6 0eef:7910 00 2.00 12MBit/s 100mA 1IF (eGalax Inc. eGalaxTouch EXC7903-18v00_Test18-v19)
2-1.6:1.0 (IF) 03:01:02 1EP (Human Interface Device:Boot Interface Subclass:Mouse) usbhid
$ lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 1: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 2: Dev 4, If 2, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 4, If 3, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
|__ Port 6: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
|__ Port 1: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
|__ Port 1: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 3: Dev 12, If 0, Class=Video, Driver=, 480M
|__ Port 3: Dev 12, If 1, Class=Video, Driver=uvcvideo, 480M
$ lsusb
Bus 002 Device 003: ID 0eef:7910 D-WAV Scientific Co., Ltd
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 012: ID 04f2:b36e Chicony Electronics Co., Ltd
Bus 001 Device 003: ID 8087:07da Intel Corp.
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 2109:0810 VIA Labs, Inc. VL81x Hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 1038:1369 SteelSeries ApS
Bus 003 Device 003: ID 04b4:0101 Cypress Semiconductor Corp. Keyboard/Hub
Bus 003 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SteelSeries Sensei Raw Gaming Mouse id=13 [slave pointer (2)]
⎜ ↳ SteelSeries Sensei Raw Gaming Mouse id=15 [slave pointer (2)]
⎜ ↳ eGalax Inc. eGalaxTouch EXC7903-18v00_Test18-v19 id=16 [slave pointer (2)]
⎜ ↳ ETPS/2 Elantech Touchpad id=19 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Asus Wireless Radio Control id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ Power Button id=9 [slave keyboard (3)]
↳ Sleep Button id=10 [slave keyboard (3)]
↳ DATACOMP SteelS쀁̄Љ̒DATA id=11 [slave keyboard (3)]
↳ DATACOMP SteelS쀁̄Љ̒DATA id=12 [slave keyboard (3)]
↳ SteelSeries Sensei Raw Gaming Mouse id=14 [slave keyboard (3)]
↳ Asus WMI hotkeys id=17 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=18 [slave keyboard (3)]
↳ SteelSeries Sensei Raw Gaming Mouse id=20 [slave keyboard (3)]And the outputs from when the issue has appeared:
$lsusb.py -i # It disappeard here as well
usb3 1d6b:0002 09 2.00 480MBit/s 0mA 1IF (Linux 4.14.15-1-ARCH xhci-hcd xHCI Host Controller 0000:00:14.0) hub
3-3 2109:3431 09 2.00 480MBit/s 100mA 1IF (VIA Labs, Inc. Hub) hub
3-3.1 04b4:0101 00 1.10 1.5MBit/s 60mA 2IFs (DATACOMP SteelS쀁̄Љ̒DATA)
3-3.1:1.0 (IF) 03:01:01 1EP (Human Interface Device:Boot Interface Subclass:Keyboard) usbhid
3-3.1:1.1 (IF) 03:01:02 1EP (Human Interface Device:Boot Interface Subclass:Mouse) usbhid
3-3.2 1038:1369 00 1.10 12MBit/s 200mA 4IFs (SteelSeries Sensei Raw Gaming Mouse)
3-3.2:1.2 (IF) 03:01:01 1EP (Human Interface Device:Boot Interface Subclass:Keyboard) usbhid
3-3.2:1.0 (IF) 03:00:00 1EP (Human Interface Device:No Subclass:None) usbhid
3-3.2:1.3 (IF) 03:00:01 1EP (Human Interface Device:No Subclass:Keyboard) usbhid
3-3.2:1.1 (IF) 03:01:02 1EP (Human Interface Device:Boot Interface Subclass:Mouse) usbhid
usb1 1d6b:0002 09 2.00 480MBit/s 0mA 1IF (ehci_hcd 0000:00:1a.0) hub
1-1 8087:0024 09 2.00 480MBit/s 0mA 1IF (Intel Corp. Integrated Rate Matching Hub) hub
1-1.1 8087:07da e0 2.00 12MBit/s 0mA 2IFs (Intel Corp.)
1-1.1:1.1 (IF) e0:01:01 2EPs (Wireless:Radio Frequency:Bluetooth) btusb
1-1.1:1.0 (IF) e0:01:01 3EPs (Wireless:Radio Frequency:Bluetooth) btusb bluetooth/hci0
usb4 1d6b:0003 09 3.00 5000MBit/s 0mA 1IF (Linux 4.14.15-1-ARCH xhci-hcd xHCI Host Controller 0000:00:14.0) hub
4-3 2109:0810 09 3.00 5000MBit/s 8mA 1IF (VIA Labs, Inc. 4-Port USB 3.0 Hub) hub
usb2 1d6b:0002 09 2.00 480MBit/s 0mA 1IF (ehci_hcd 0000:00:1d.0) hub
2-1 8087:0024 09 2.00 480MBit/s 0mA 1IF (Intel Corp. Integrated Rate Matching Hub) hub
2-1.6 0eef:7910 00 2.00 12MBit/s 100mA 1IF (eGalax Inc. eGalaxTouch EXC7903-18v00_Test18-v19)
2-1.6:1.0 (IF) 03:01:02 1EP (Human Interface Device:Boot Interface Subclass:Mouse) usbhid
$ lsusb -t #The device has disappeared
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
|__ Port 3: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 1: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 2: Dev 4, If 2, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 4, If 3, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
|__ Port 6: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
|__ Port 1: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 1: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ eGalax Inc. eGalaxTouch EXC7903-18v00_Test18-v19 id=11 [slave pointer (2)]
⎜ ↳ ETPS/2 Elantech Touchpad id=14 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Asus Wireless Radio Control id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ Power Button id=9 [slave keyboard (3)]
↳ Sleep Button id=10 [slave keyboard (3)]
↳ Asus WMI hotkeys id=12 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=13 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=39 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=38 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=37 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=36 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=35 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=34 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=33 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=32 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=31 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=30 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=29 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=28 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=27 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=26 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=25 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=24 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=23 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=22 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=21 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=20 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=19 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=18 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=17 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=16 [slave keyboard (3)]
↳ USB2.0 HD UVC WebCam: USB2.0 HD id=15 [slave keyboard (3)]EDIT: Here are an example output from dmesg :
Jan30 01:06] usb 1-1.3: new high-speed USB device number 112 using ehci-pci
[ +0.196902] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (04f2:b36e)
[ +0.011153] uvcvideo 1-1.3:1.0: Entity type for entity Extension 4 was not initialized!
[ +0.000004] uvcvideo 1-1.3:1.0: Entity type for entity Processing 2 was not initialized!
[ +0.000002] uvcvideo 1-1.3:1.0: Entity type for entity Camera 1 was not initialized!
[ +0.000304] input: USB2.0 HD UVC WebCam: USB2.0 HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input263
[ +2.403698] usb 1-1.3: USB disconnect, device number 112
[ +8.907894] usb 1-1.3: new high-speed USB device number 113 using ehci-pci
[ +0.196164] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (04f2:b36e)
[ +0.010849] uvcvideo 1-1.3:1.0: Entity type for entity Extension 4 was not initialized!
[ +0.000004] uvcvideo 1-1.3:1.0: Entity type for entity Processing 2 was not initialized!
[ +0.000002] uvcvideo 1-1.3:1.0: Entity type for entity Camera 1 was not initialized!
[ +0.000170] input: USB2.0 HD UVC WebCam: USB2.0 HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input264
[ +2.148690] usb 1-1.3: USB disconnect, device number 113
[ +11.724127] usb 1-1.3: new high-speed USB device number 114 using ehci-pci
[ +0.197157] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (04f2:b36e)
[ +0.010823] uvcvideo 1-1.3:1.0: Entity type for entity Extension 4 was not initialized!
[ +0.000004] uvcvideo 1-1.3:1.0: Entity type for entity Processing 2 was not initialized!
[ +0.000002] uvcvideo 1-1.3:1.0: Entity type for entity Camera 1 was not initialized!
[ +0.000542] input: USB2.0 HD UVC WebCam: USB2.0 HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input265
[ +2.915283] usb 1-1.3: USB disconnect, device number 114And some information from jourcnalctl -b that looked interesting.
Jan 29 15:45:15 {hostname} kernel: ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
Jan 29 15:45:31 {hostname} kernel: usb 1-1.3: new high-speed USB device number 5 using ehci-pci
Jan 29 15:45:32 {hostname} kernel: uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (04f2:b36e)
Jan 29 15:45:32 {hostname} kernel: uvcvideo 1-1.3:1.0: Entity type for entity Extension 4 was not initialized!
Jan 29 15:45:32 {hostname} kernel: uvcvideo 1-1.3:1.0: Entity type for entity Processing 2 was not initialized!
Jan 29 15:45:32 {hostname} kernel: uvcvideo 1-1.3:1.0: Entity type for entity Camera 1 was not initialized!
Jan 29 15:45:32 {hostname} kernel: input: USB2.0 HD UVC WebCam: USB2.0 HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input26
Jan 29 15:45:32 {hostname} mtp-probe[2832]: checking bus 1, device 5: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3"
Jan 29 15:45:32 {hostname} mtp-probe[2832]: bus: 1, device: 5 was not an MTP device
....
Jan 29 18:58:03 {hostname} kernel: usb 1-1.3: new high-speed USB device number 9 using ehci-pci
Jan 29 18:58:03 {hostname} kernel: uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (04f2:b36e)
Jan 29 18:58:03 {hostname} kernel: uvcvideo 1-1.3:1.0: Entity type for entity Extension 4 was not initialized!
Jan 29 18:58:03 {hostname} kernel: uvcvideo 1-1.3:1.0: Entity type for entity Processing 2 was not initialized!
Jan 29 18:58:03 {hostname} kernel: uvcvideo 1-1.3:1.0: Entity type for entity Camera 1 was not initialized!
Jan 29 18:58:03 {hostname} kernel: input: USB2.0 HD UVC WebCam: USB2.0 HD as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input30
Jan 29 18:58:03 {hostname} mtp-probe[31739]: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3"
Jan 29 18:58:03 {hostname} mtp-probe[31739]: bus: 1, device: 9 was not an MTP device
Jan 29 18:58:03 {hostname} upowerd[1332]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1
Jan 29 18:58:03 {hostname} colord[965]: /usr/lib/colord-sane: error while loading shared libraries: libsane.so.1: cannot open shared object file: No such file or director
Jan 29 18:58:03 {hostname} upowerd[1332]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0
Jan 29 18:58:03 {hostname} upowerd[1332]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3
Jan 29 18:58:06 {hostname} kernel: usb 1-1.3: USB disconnect, device number 9
Jan 29 18:58:06 {hostname} upowerd[1332]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.1
Jan 29 18:58:06 {hostname} upowerd[1332]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0
Jan 29 18:58:06 {hostname} upowerd[1332]: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3Last edited by mmFooD (2018-01-31 08:23:17)
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I haven't been able to locate the source of this issue. But I was able to avoid the symptoms.
I simply added this to /etc/X11/xorg.conf.d/40-custom.conf
Section "InputClass"
Identifier "Laptop-webcam"
MatchIsKeyboard "yes"
MatchVendor "Chicony"
MatchUSBID "04f2:b36e"
Option "Ignore" "on"
EndSectionI have never had any problems since. But it will of course disable the webcam completely. It makes little difference to me though as I hardly ever use it.
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