On Thu, 2020-08-27 at 07:32 +0000, laolux laolux wrote:
However, lock does not work well. I can unlock after 10 seconds (8 out of 8 times), but I cannot unlock anymore after 20 seconds (3 out of 3 times).
Do you have different suspend options in the BIOS (or UEFI)? It could be that you can change a setting so that the laptop still provides enough power to its RAM during suspend that it can resume.
Hibernation could be a problem if you don't have a large enough swap partition, or swap file, or don't have a kernel options specifying which swap to resume from.