On 10/3/18 7:05 PM, Ed Greshko wrote:
On 10/4/18 5:18 AM, Samuel Sieb wrote:
My laptop sometimes doesn't turn back on after suspending, so I've decided to try
using hybrid-sleep instead. I modified logind.conf to contain the following two
lines and restarted logind:
HandleSuspendKey=hybrid-sleep
HandlePowerKey=hybrid-sleep
What do you get for....
cat /sys/power/state
and
cat /sys/power/disk
# cat /sys/power/state
freeze mem disk
# cat /sys/power/disk
platform shutdown reboot [suspend] test_resume
Looking at https://www.kernel.org/doc/html/latest/admin-guide/pm/sleep-states.html
seems to suggest that "suspend" is actually the same as
hybrid-sleep.
hybrid-sleep is a combination of hibernation and suspend. It saves the
state as if hibernating, but only goes into suspend mode. This allows
it to resume almost as quickly as a suspend, but if something goes
wrong, like the battery dying or resume failing, you can restart the
laptop and it will resume from hibernation. It's a very safe mode.
From that document, you put "disk" in power/state which would normally
be a hibernate, but if before that you put "suspend" in power/disk
instead of the usual "shutdown", it will do the hybrid-sleep instead.
I have no problem with the hybrid-sleep, it works perfectly, but gsd is
blocking logind from doing it and doesn't offer an option to do it
itself. For now, I'm just manually running "systemctl hybrid-sleep" myself.
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