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 .
*-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
issue got solved with kernel 5.4.0-37-generic . https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1881757