Where in Fedora 20 are the suspend and hibernate options?

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You can suspend the computer by holding Alt while hovering over the power button from the top-right corner menu. It will turn into a "pause button".

If you mean GNOME environment, there are no such options. You suspend by closing the lid and to hibernate I think you have to use a command in terminal. You might find an extension to modify such a behavior: https://extensions.gnome.org/

If you're using the terminal, try pm-suspend and pm-hibernate. They're part of the pm-utils package.

it works perfect with fedora 25 and dell workstation

systemctl suspend or systemctl suspend -i

you may assing pause or other key to use this shortcut

In gnome click at the battery status indicator in upper right corner and then hold 'alt'. You'll see, that shutdown button transforms to suspend button.

In Fedora 24 (and I believe it is from Fedora 22 up) the hibernate or hybrid sleep is not enabled by default. To enable it run this code as root:

#!/bin/bash
# Enable hibernation
# Using info from:
# https://psohny.wordpress.com/2015/08/13/fedora_hiber/

# Enable recovery in the /etc/default/grub
sed -i -e 's|^\(GRUB_DISABLE_RECOVERY="\)true"|\1false"|' /etc/default/grub

#Find the swapdevice
SWAPDEVICE=`grep -e '^[^#].*swap' /etc/fstab | head -n 1 | cut -d ' ' -f 1`
echo "Using SWAPDEVICE=${SWAPDEVICE} for hibernation"

#add "resume=swapdevice" to the GRUB_CMDLINE_LINUX=
sed -i -e "s|^\(GRUB_CMDLINE_LINUX=\".*\)\"|\1 resume=${SWAPDEVICE}\"|" /etc/default/grub

#Regenerate the grub config
/sbin/grub2-mkconfig -o /boot/grub2/grub.cfg

After regenerating the grub configuration, now you need to reboot your machine

reboot

Now after reboot it will be possible to hibernate or even hybrid-sleep

systemctl hibernate -i
systemctl hybrid-sleep -i

By accident, I discovered that the key combination "Superkey"-L does this. I wrote an uppercase L only for emphasis. I normally use an unshifted L.

Depending on your keyboard, the Superkey is either the Apple Command key or the Windows key.

thank's works perfekt wih a old dell workstation + fedora 25 systemctl hibernate -i -->wake up with power button --> login again --> the apps are open I like fedora