Webcam Not Working on Ubuntu 20.04 After Recent Kernel Update
My Builtin Webcam Stopped Working After a Kernel Update Issued After 22 April 2020. Before This Date I Was Able to Take Pictures on Cheese and Video Call Etc...
My builtin webcam stopped working after a kernel update issued after 22 April 2020 . Before this date i was able to take pictures on cheese and video call etc , and for a while i didn't use my webcam until yesterday i noticed that my webcam is getting detected as "usb 2.0 web camera" but its not working at all . Cheese shows a black screen when opened and Firefox asks for permission and then nothing happens . So i changed the kernel to version 5.0 and webcam started working properly . But i need to work it on the latest Ubuntu kernel . Any help will be thankful .
output of sudo lshw:
*-usb:1
description: Video
product: USB 2.0 Web Camera
vendor: Alcor Micro, Corp.
physical id: 2
bus info: usb@1:1.2
version: 0.08
capabilities: usb-2.00
configuration: driver=uvcvideo maxpower=200mA speed=480Mbit/s
3 Answers
issue got solved with kernel 5.4.0-37-generic .
For me there was permission issue.
The group and permissions for your /dev/video* files were icorrect. The group root for your /dev/video* will deny access to the camera for users outside this group.
The output of ls -l /dev/video0 should look like this:
crw-rw----+ 1 root video 81, 1 Apr 19 22:25 /dev/video0
crw-rw----+ 1 root video 81, 1 Apr 19 22:25 /dev/video1
Try fixing the group by running:
sudo chown root:video /dev/video*
Then fix permissions by running:
sudo chmod 666 /dev/video*
It worked!!
In my case I don't know what the issue was but:
- Go to BIOS and disable the cam.
- Restart.
- Go to BIOS and enable back the camera.
This helped me.
Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.
