I have the same problem on my Thinkpad T14 with "AMD Ryzen 7 PRO 6850U with Radeon Graphics" CPU. My BIOS doesn't provide "Sleep State" option.
What I've found is it is possible to put system to sleep many times in a row with this command:
$ echo mem | sudo tee /sys/power/state
However, closing the lid, or using Gnome menus to put system to sleep works only once per boot.
I have the same problem on my Thinkpad T14 with "AMD Ryzen 7 PRO 6850U with Radeon Graphics" CPU. My BIOS doesn't provide "Sleep State" option.
What I've found is it is possible to put system to sleep many times in a row with this command:
$ echo mem | sudo tee /sys/power/state
However, closing the lid, or using Gnome menus to put system to sleep works only once per boot.