No idea if related, but I had a really frustrating issue recently on fedora/similar kernel version.
Resume from sleep stopped working, and boot started taking minutes. Going through logs I was able to figure out it was probably usb related, and that sleep worked if you were patient enough to wait for a timeout, but the issue persisted with all cables unplugged. The error code was something along the lines of failing to provide enough power for a device, I suspected my new speakers despite them having dedicated wall outlet power (usb audio despite being on the motherboard AFAIK)
Long story short someone in a thread somewhere suggested unplugging from the wall for 10 min and to my surprise it worked - I guess it cleared the fault somehow and it hasn't reoccurred (yet). Might be worth a try.
Resume from sleep stopped working, and boot started taking minutes. Going through logs I was able to figure out it was probably usb related, and that sleep worked if you were patient enough to wait for a timeout, but the issue persisted with all cables unplugged. The error code was something along the lines of failing to provide enough power for a device, I suspected my new speakers despite them having dedicated wall outlet power (usb audio despite being on the motherboard AFAIK)
Long story short someone in a thread somewhere suggested unplugging from the wall for 10 min and to my surprise it worked - I guess it cleared the fault somehow and it hasn't reoccurred (yet). Might be worth a try.