This problem is almost same as below, but also in the topic, it seems not to solved.
My laptop is LG gram(14Z90N-U.ARW5U1).
My laptop cannot hibernate.
After entering "systemctl hibernate", the screen goes dark, and then after some time, the laptop gets so hot that I can't touch it.
It will not be able to come back and the CapsLock key will only blink.
I have no choice but to press and hold the power button and then reboot.
I'm sorry for my poor English.
If you know anything about this, please provide information.