I've done the upgrade to kernel 5.4.0-86, and the problem is still present. Leaving a unsed CD/DVD in the drawer and unmounting it is still an effective workaround.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1943616 Title: CD-ROM tray opens on wake from suspend on Ubuntu 20.04 LTS Focal Status in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: I'm using Ubuntu 20.04.3 LTS amd64. Updating to kernel 5.4.0-84 seems to have been the cause. It's a known bug in the Linux kernel This is the upstream bug: https://bugzilla.kernel.org/show_bug.cgi?id=213795 There's a patch there too. Related launchpad bugs: After hibernation #1943379 https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1943379 On Impish #1942299 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942299 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1943616/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp