I also have the same issue. By killing fwupd I was able to temporarily stop the CPU usage. Manually restarting does not cause CPU usage to spike up again. Attached is the output of fwupd after manually restarting with,
> sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
Here's my system info,
> sudo dmidecode | grep 'System Information' --after-context=10
System Information Manufacturer: LENOVO
Product Name: ______
Version: ThinkPad X1 Carbon 5th
Serial Number: ___________
UUID: ___________
Wake-up Type: Power Switch
SKU Number: LENOVO_MT_20HR_BU_Think_FM_ThinkPad X1 Carbon 5th
Family: ThinkPad X1 Carbon 5th
I also have the same issue. By killing fwupd I was able to temporarily stop the CPU usage. Manually restarting does not cause CPU usage to spike up again. Attached is the output of fwupd after manually restarting with,
> sudo /usr/lib/ x86_64- linux-gnu/ fwupd/fwupd -v
Here's my system info,
> sudo dmidecode | grep 'System Information' --after-context=10
Manufacturer: LENOVO MT_20HR_ BU_Think_ FM_ThinkPad X1 Carbon 5th
System Information
Product Name: ______
Version: ThinkPad X1 Carbon 5th
Serial Number: ___________
UUID: ___________
Wake-up Type: Power Switch
SKU Number: LENOVO_
Family: ThinkPad X1 Carbon 5th