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A few months back, #KDE #Plasma reinstated the #Hiberate or #Suspend-to-disk feature, in addition to the usual #Sleep or #Suspend-to-RAM. Nice to have the choice, I suppose, but what's the purpose or advantage of the former over the latter? The only thing I can think of is that hibernate probably conserves more battery power but on the down side, it also takes longer to regain function. Anyone care to comment?

#GNU #Linux #Fedora

#linux #kde #plasma #GNU #Fedora #sleep #Hiberate #Suspend-to-disk #Suspend-to-RAM
in reply to Khurram Wadee

Brian Ó
Brian Ó
• •
Yes. Hibernate writes the contents of RAM to disk and shuts the machine off. Much better for battery life.
in reply to Khurram Wadee

chama
chama
• •

When you hibernate, it's like if you had switched off, you can remove the battery of you notebook if you want.
When you'll restart your computer, you will resume in your session. If your drive is LUKS, you will be asked for your passphrase.
It's a great function.
I personally don't see the point of suspend to ram.

The only think is that you need to have as much swap as you have ram, cause all your open programs go to swap.

in reply to Khurram Wadee

djn
djn
• •
The downside of hibernation when your harddrive is a SSD is that "consumes" write cycles of the disk, which are limited by design. So it reduces its time life.
Be aware of that.
Personnally, I don't enable hibernation.
in reply to Khurram Wadee

Andrew Pam
Andrew Pam
• •
How often do you hibernate compared to all the other disk writes you do?! Surely it's a tiny fraction unless you rarely ever write anything to disk.
in reply to Khurram Wadee

djn
djn
• •
The point to consider is more the total amount of written data during the disk life (also called by manufacturers TBW for TeraBytes Written), not the number of each write operation. Then it depends on your daily activity in terms of written data, while each hibernation always write some GB, mainly function of your RAM size.
But you're right, in most cases, it's less significant than real write operations.
My laptop is ~8 years old, still working and sufficient for my usage, and I'll try to keep it alive as long as possible, concerned by my life & technology impact on the planet. With such life duration, not using hibernation may help my SSD to work as long as the laptop.
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