Tips and Tweaks installs the powertop package, but does not do any adjustments in the powertop settings. It's my understanding that if you reboot, all the powertop settings revert to the defaults.
Seems to be an issue with a new installation of the container. I haven't seen this with my older setup. The latest nightly build when I updated the docker container may have an issue. I'll see if a more recent nightly build will fix it. Glad you got it working though.
New release of Tips and Tweaks:
Allows you to schedule a user set power saving CPU Governor and return to normal CPU Governor on a schedule. If you were using the older scheduled mode of changing CPU Governors, you'll need to reconfigure your settings.
Powertop has been added. The powertop package is installed and there is a button on the T&T page to initiate a terminal to run powertop. Once in the terminal enter 'powertop'.
You are running Unraid 6.9. That version of Unraid uses NFSv3 that is know to have stale file handle issues. Upgrade to 6.10 that uses NFSv4 that does not have the stale file handle issues.
Understood. That's the information I needed.
That indicates that libvirt has an issue. I'm not sure I will be able to do anything about that. I don't have a BigSur VM so I can't do any testing. I'll do a some research and see if there is a solution.
Sounds like an incompatibility with libvirt and BigSur. Stop your VM, edit the VM xml and select that device at the bottom where the USB devices can be selected, then restart the VM. See if it attaches then.
Different CPUs have differing power saving modes. It is probably more appropriate for the user to be able to choose the modes they want for full power and power saving modes. I'm looking into making some changes.
Go to the Libvirt Hotplug USB page and click on the device to be attached and attach it. Then click on the 'USB Devices' to show the list of devices and get a screen shot of that whole page and post it here.