On Sat, 09 May, 2020 at 16:02:17 -0400, mark wrote: > Hi, folks, > > Updated CentOS 7 the other day. Updated zoom last night. Ancient (15 yr > old) USB camera, Logitech QuickCam Express. > > If I run LD_PRELOAD=/usr/lib64/libv4l/v4l2convert.so cheese, I get video. > Zoom, with or without the LD_PRELOAD - no video. I've tried stracing zoom, > and created a file /etc/ld.so.preload, with the contents of > /usr/lib64/libv4l/v4l2convert.so, and in strace, I see it loading it, but > still no video. > > Anyone got any clues? Being a free end user, all zoom offers is the > knowledge base.... I recommend installing zoom from flatpak: https://flathub.org/apps/details/us.zoom.Zoom It will pull in the freedesktop runtime, which contains the required libraries. No need to fiddle with LD_PRELOAD and the like.