On Thu, Oct 04, 2018 at 08:33:13AM -0400, Sam Varshavchik wrote:
I tried to enable suspension it works
maybe once or twice, but then eventually the laptop fails to come
out of suspended state no matter what, so I end up power-cycling it,
then turning off suspension in power management, and only have it
turn the display off.
That's most likely some kernel driver and/or firmware
issue. With suspend,
the userspace just issues the order, and the kernel does the rest.
Hibernation never worked, to my recollection. Just tried to
hibernate this laptop. The display flickered a few times, the
laptop's speaker made a few reassuring beeps, then the whole thing
turned itself off. The next boot was a normal boot. Normal grub
menu, normal boot. No evidence of anything being hibernated.
Probably a userspace issue, but I have no idea where to look.
That sounds as if the
'resume=' parameter is missing from the kernel
command line. The system then just boots normally, which matches the
symptoms you describe.
Zbyszek