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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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State of S3 - Your Laptop is no Laptop anymore (blog.jeujeus.de)

submitted 5 months ago by [email protected] to c/[email protected]

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In this article, I aim to take a different approach. We will begin by defining a laptop according to my understanding. The I will share my personal history and journey to this point, as well as my current situation with my home and work laptops. Using this perspective, we will explore the current dysfunctionality of the standby function in modern laptops, followed by a discussion of why this feature still has relevance and right to exist. Finally, we will draw conclusions on what we can learn and take away from this.

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[–] [email protected] 22 points 5 months ago* (last edited 5 months ago) (1 children)

I have an older XPS where where the CPU still supports deep sleep (S3).

Most distros have it disabled by default now because neither AMD not Intel seem to officially support it in new CPUs (so windows will have the same problem)

To check if your cpu supports it, you can run: journalctl | grep S1

You should see a message that says something like CPU supports S1 S2 S3 etc. if S3 is there then deep sleep is supported and can be enabled.

Ubuntu instructions: https://askubuntu.com/questions/1029474/ubuntu-18-04-dell-xps13-9370-no-longer-suspends-on-lid-close/1036122#1036122

Fedora desktop or atomic instructions: https://discussion.fedoraproject.org/t/laptop-appears-to-sleep-but-not-suspend/77193/4

Note, this is purely the fault of CPU manufacturers for being so shitty about proper sleep and yet another point that has to be conceeded to apple. Imagine explaining to a normal person that your XPS is really good and way cheaper than a Mac...but the batter will die overnight when you need it in the morning. Literally just shooting themselves in the foot.

Hibernate works as well but takes a bit longer. Hibernate also crashes in many modern systems but again works great in my older XPS. You have to manually activate this as well and it's really not to bad with a good ssd.

That being said his should all be very basic functionality so why do I have to do this manually. This shit is why people buy Macs.

There's also room for distros to improve here. The installer can probe the CPU and see if S3 is supported, if so it can use deep sleep automatically. Why do I have to mess with Kernal arguments?

Similar for hibernate, why doesn't the installer just have a check box that sets up the hibernate file/partition?