Created attachment 1091981 [details] dmesg output Acer Aspire E1-571. Latest BIOS (2.21) available in Acer UK website. It used to suspend correctly in openSUSE 13.2. It does not in Fedora 23. $ cat /sys/power/disk [disabled] $ cat /sys/power/state freeze mem The boot log says "ACPI: (supports S0 S3 S4 S5)". I have no idea where else to look. I am attaching the output of dmesg just to start somewhere.
Your machine has secure boot enabled. We don't support hibernate on secure boot machines.