OK, i'm now running the V4.16.0 kernel: > craigster0@p51:/local/home/craigster0/Downloads/linux-kernel-4.16$ uname -r > 4.16.0-041600-generic
and clicking on the "speaker icon" on the menu bar at the bottom of the screen still shows "No output or input devices found". more importantly, trying to play audio with Amarok or Rhythmbox produces no audible signal. i also tried booting with the oldest kernel still installed on the box, vmlinuz-4.13.0-36-generic, which was installed well before this problem occurred and the sound still didn't work. to the best of my recollection. i don't think this problem was _caused_ by a kernel update. both speakers and microphone worked fine with all apps before i performed a software update, and failed after that. the trick is figuring out exactly which software update caused the problem! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761051 Title: laptop sound broken in latest update -- "No output or input devices found" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1761051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
