Arch Linux

Nordic89

Member

Registered: 2014-05-07

Posts: 49

[Solved] The uvcvideo module is being deregistered

I autostart the module by having added to /etc/modules-load.d and in general it works just fine.

This is the output of:

 journalctl -b | grep uvcvideo 

Mar 06 08:16:49 LillaArch kernel: uvcvideo: Found UVC 1.00 device USB Webcam (0bda:5727)
Mar 06 08:16:49 LillaArch kernel: usbcore: registered new interface driver uvcvideo
Mar 06 08:16:48 LillaArch systemd-modules-load[210]: Inserted module 'uvcvideo'
Mar 06 08:16:51 LillaArch kernel: usbcore: deregistering interface driver uvcvideo
Mar 06 08:16:52 LillaArch kernel: uvcvideo: Found UVC 1.00 device USB Webcam (0bda:5727)
Mar 06 08:16:52 LillaArch kernel: usbcore: registered new interface driver uvcvideo
Mar 06 08:16:52 LillaArch kernel: usbcore: deregistering interface driver uvcvideo
Mar 06 08:20:45 LillaArch sudo[9475]: sven : TTY=pts/0 ; PWD=/home/sven ; USER=root ; COMMAND=/usr/bin/modprobe uvcvideo
Mar 06 08:20:46 LillaArch kernel: uvcvideo: Found UVC 1.00 device USB Webcam (0bda:5727)
Mar 06 08:20:46 LillaArch kernel: usbcore: registered new interface driver uvcvideo

As you can see the module loads just fine, but it's always automatically deregistered again, unless I do it manually.

Why is that and how can I prevent it?

edit: Just delete powerdown-git (or edit the config file) and it's fixed.

Last edited by Nordic89 (2015-03-07 11:14:22)

Head_on_a_Stick

Member

From: London

Registered: 2014-02-20

Posts: 7,748

Website

Re: [Solved] The uvcvideo module is being deregistered

What is your hardware?

A Samsung owner in this Ubuntu forums thread used "samsung-tools" (whatever that is) to turn the webcam on:
http://ubuntuforums.org/showthread.php?t=2080543

---

Are you infected with Wetiko?

Nordic89

Member

Registered: 2014-05-07

Posts: 49

Re: [Solved] The uvcvideo module is being deregistered

It's a sony vaio pro 13, so I can't use samsung-tools. Everything works perfectly when loading the module manually.

There surely has to be some way to find out why the module is being deregistered?

Head_on_a_Stick

Member

From: London

Registered: 2014-02-20

Posts: 7,748

Website

Re: [Solved] The uvcvideo module is being deregistered

Are there any options in your firmware (BIOS) menus?

---

Are you infected with Wetiko?

Nordic89

Member

Registered: 2014-05-07

Posts: 49

Re: [Solved] The uvcvideo module is being deregistered

Nope, nothin even remotely related to it.

Nordic89

Member

Registered: 2014-05-07

Posts: 49

Re: [Solved] The uvcvideo module is being deregistered

Solved: It was powerdown-git. No idea why it deregisters the video modules when trying to save power though.