I have Ubuntu 20.04 on HP Elitebook 840 G4. For a few months, the camera is showing "No device found" when I open Cheese. Previously it was working fine. I can not even access the camera with any web application. I'm not sure if it is a hardware or software related problem. What could be the issue?
~$ sudo lshw --class video
Hardware Lister (lshw) -
usage: lshw [-format] [-options ...]
lshw -version
-version print program version ()
format can be
-html output hardware tree as HTML
-xml output hardware tree as XML
-json output hardware tree as a JSON object
-short output hardware paths
-businfo output bus information
options can be
-class CLASS only show a certain class of hardware
-C CLASS same as '-class CLASS'
-c CLASS same as '-class CLASS'
-disable TEST disable a test (like pci, isapnp, cpuid, etc. )
-enable TEST enable a test (like pci, isapnp, cpuid, etc. )
-quiet don't display status
-sanitize sanitize output (remove sensitive information like serial numbers, etc.)
-numeric output numeric IDs (for PCI, USB, etc.)
-notime exclude volatile attributes (timestamps) from output
:~$ /bin/ls -l /dev/video;id
/bin/ls: cannot access '/dev/video': No such file or directory
uid=1000(username) gid=1000(username) groups=1000(username),4(adm),20(dialout),24(cdrom),27(sudo),30(dip),46(plugdev),120(lpadmin),131(lxd),132(sambashare),138(libvirt)
