- zzz - I can almost resume it from RAM with "Security Chip" ("TPM") disabled in the BIOS setting. Except display remains off. With TPM enabled, I couldn't power on the machine after suspend to RAM.
- ZZZ - Disabling TPM doesn't help hibernation. - I tried disabling various devices (iwm, em, xhci, ehci, ...). Didn't help instability of hibernation. - Most failures are not recognizing hibernation (`/ was not properly unmounted') - Unhibernation succeeds when you are really lucky. :)