Linux Mint is ‘bringing back’ hibernation to laptops

Scheduled for release this coming December, Linux Mint 27 aims to solve one of the most frustrating daily inconveniences for mobile computer users. Currently, when a user closes their laptop lid running Linux Mint, the system enters a standard suspend state. While this snoozes the device and keeps it ready for a quick wake-up, the computer continues to draw a small amount of power from the battery while doing so. If the user stays away too long and the battery runs completely dry during this sleep state, the consequences can be severe. The suspended session is completely lost, resulting in an abrupt termination that the Linux Mint team describes as being even worse than a normal, graceful shutdown because unsaved work can vanish entirely.

To combat this, the development team has introduced a brand new "Sleep Modes" page housed within the System Administration tool in Linux Mint 27. This dedicated configuration space makes it remarkably easy for everyday users to enable hibernation and ensure that the power management settings are configured precisely to fit their individual needs.

Unlike standard suspension, true hibernation works by taking the entire active computer session—including all open applications, documents, and system states—and writing that data directly to the storage disk before powering down the machine completely. When the user eventually boots the laptop back up, the system reads the saved session data from the disk and restores everything exactly as it was left. While the battery will still experience some negligible depletion while all hardware devices are completely turned off, the rate of power loss is drastically lower than it would be during a standard suspended state, safeguarding the user’s workflow over extended periods away from a power outlet.

However, the Linux Mint team is transparent about the inherent trade-offs that come with bringing back hibernation. While it solves the battery drain problem, hibernation is fundamentally slower than a simple suspend. The process of writing a massive amount of RAM data to the storage drive takes time, and the subsequent resume process is similarly less instantaneous. Furthermore, successful hibernation requires an adequately sized swap space on the storage drive to accommodate the entirety of the system’s memory contents.

Recognizing that users have diverse needs and hardware setups, Linux Mint 27 will not stop at basic hibernation. The distribution will also introduce two advanced hybrid modes: Hybrid Sleep and Suspend-then-Hibernate.

Hybrid Sleep is designed to offer the best of both worlds by suspending the device and saving the session data to the disk simultaneously. This means that if the battery eventually runs completely flat while the user is away, the system has a safety net and can still successfully restore the session from the disk upon the next power-up. Meanwhile, Suspend-then-Hibernate takes a progressive approach. It initially puts the laptop into a standard, fast-responding suspend state, but automatically transitions the system into full hibernation mode if the battery capacity drops down to a critically low level.

These two hybrid choices provide significantly more flexible behaviors than what is currently available in the operating system. Furthermore, because traditional standard suspend is sticking around as a fully supported option, no user will miss out on the behavior they are already accustomed to.

The absence of hibernation in recent versions of Linux Mint has a historical context rooted upstream. The development team notes that Ubuntu, upon which Linux Mint is frequently based, previously removed hibernation from its default available sleep modes due to various underlying reliability and hardware compatibility challenges. Because of this upstream decision, hibernation was naturally absent from Mint as well. Even today, Ubuntu keeps hibernation disabled by default, and the feature is frequently blocked outright if a system has Secure Boot active in its firmware settings.

Choosing to break away from these limitations and address persistent user requests, the Linux Mint team is decisively reversing course. "We’re bringing it back," the team asserts, signaling a major win for laptop users who value both battery preservation and uninterrupted productivity. With the release of Linux Mint 27 this December, users will finally regain full control over how their machines manage power when the lid goes down.