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Old 12-26-2016, 04:48 AM   #1
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No Device found in guvcview

Hey there, I have recently installed Ubuntu MATE and My internal webcam has stopped working. In Skype or guvcview I get the same device not found message. Here are the results from lsusb:

Bus 001 Device 003: ID 05ca:1870 Ricoh Co., Ltd Webcam 1000
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 03f0:171d Hewlett-Packard Bluetooth 2.0 Interface [Broadcom BCM2045]
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0e8f:00a7 GreenAsia Inc. 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Any help you could give would be greatly appreciated. this is driving me crazy.
Old 12-26-2016, 05:00 AM   #2
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Searching for 05ca:1870 ubuntu on the web returns which refers to a Launchpad PPA that might solve the problem if it supports the version of Ubuntu that you have (although you have not specified the version here).

If you want to try things more manually, you can have a look at
Old 12-27-2016, 07:16 AM   #3
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You may need to unplug and replug the webcam after boot. The usb bus is limited and if you have other high bandwidth things (like ethernet or wifi networking) on the same hub / port, it can interrupt things and make things unreliable. There's also limited power on a given port, so a powered hub might help even if there's only one thing on that port. Laptop usb ports tend to be under powered, probably out of battery life concerns.

It could also be that your user is not in the video group.

$ ls -l /dev/video*

$ groups

$ id

Or everything is there, but the usb video module isn't loaded (or available).

$ sudo modprobe uvcvideo

Edit: Sometimes a reboot cures a few ails. Which is probably your only option with an internal webcam.

Last edited by Shadow_7; 12-27-2016 at 07:18 AM.


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