Omarchy 4.0.5 Released with Linux Kernel 7.2.8 and Better Hardware Support
Omarchy 4.0.5 is a maintenance update for the Arch-based Linux desktop distribution. It moves the default system to Linux 7.2.8 with the BORE scheduler, updates core packages including Qt 6.12, and fixes a broad set of hardware, desktop, and security-related issues.
Key takeaways
- Omarchy 4.0.5 updates the default kernel to Linux 7.2.8 with the BORE scheduler.
- The release updates the stable package snapshot, including Qt 6.12, and refines repository priority.
- Fixes cover laptop audio, NVIDIA hybrid graphics settings, boot hangs, Steam graphics-driver selection, Windows VM launch permissions, and more.
- Existing installations can update through Update → Omarchy; new installations can use the release ISO.
- As with any operating-system upgrade, back up important data and review release notes before installing.
What is Omarchy 4.0.5?
Omarchy is an Arch Linux-based desktop system designed to provide a cohesive, keyboard-oriented desktop environment with a curated collection of applications, themes, tools, and system defaults. Version 4.0.5 is a maintenance and refinement release rather than a complete redesign.
The update tightens reliability ahead of a future feature release. Alongside a newer kernel and refreshed stable package set, it addresses problems reported across audio devices, laptop hardware, graphics, desktop shell behavior, virtual machines, and system utilities.
Linux kernel 7.2.8 and the BORE scheduler
Omarchy 4.0.5 updates its default kernel to Linux 7.2.8 and includes the BORE scheduler. Scheduler behavior can influence how interactively responsive a desktop feels while background jobs compete for CPU time. The practical effect depends on workload, hardware, drivers, and configuration; a newer kernel does not guarantee a measurable speed increase on every machine.
The release also updates the stable package ring to an October snapshot, including Qt 6.12. The Qt update matters to Omarchy’s desktop shell and related applications, and the release notes list fixes for shell colors, panels, and third-party shell plugins that were affected by the Qt update.
| Component | Change in 4.0.5 | Why it matters |
|---|---|---|
| Linux kernel | Updated to 7.2.8 | Newer kernel baseline and updated hardware support. |
| CPU scheduling | BORE scheduler included | Scheduling behavior is tuned toward interactive desktop responsiveness. |
| Qt | Updated to 6.12 | Refreshes the underlying toolkit used by parts of the desktop stack. |
| Package sources | Omarchy repository priority refined | Helps ensure Omarchy-specific packages take precedence over Arch packages where intended. |
Hardware compatibility and desktop improvements
A key focus of Omarchy 4.0.5 is fixing device-specific annoyances that can make a desktop Linux installation unreliable even when the core system boots successfully.
- Dell XPS 13 Panther Lake: fixes built-in speaker support.
- KEF LSX II LT USB speakers: addresses a problem that could cause the speakers to lock up.
- NVIDIA hybrid laptops: optimizes environment variables for hybrid graphics configurations.
- Mac systems with Apple T2 security chips: fixes installations that were missing the Broadcom firmware fetcher.
- Display settings: fixes the Display panel toggle used to turn a monitor on or off.
- Audio processing: improves audio sink resolution for EasyEffects 8 and fixes filters using separate audio nodes.
Other refinements aim to make daily use smoother. The release improves Wi-Fi QR-code generation, bar performance, shell restart speed, browser and web-app launch speed, Neovim clipboard operations over SSH, and system update time by skipping a redundant keyring refresh.
Application, gaming, and virtual-machine fixes
The release includes several targeted fixes outside the kernel and hardware stack:
- Fixes Steam installation selecting incorrect graphics drivers.
- Fixes Windows virtual-machine launch failures caused by directory permissions.
- Fixes a black-screen hang during boot on some systems.
- Prevents closing a laptop lid from interrupting system shutdown.
- Fixes calendar grid errors in particular time zones.
- Improves clicked-link focus behavior so the browser window receives focus.
- Fixes lock recovery taking over a session held by another locker.
- Corrects an idle timeout of zero so it disables the timeout instead of locking immediately.
- Fixes removal of RetroArch leaving its database package behind.
- Improves Fastfetch swap-label spacing.
These are targeted corrections, not a guarantee that every hardware or application issue is resolved. For unusual laptop configurations, external GPUs, specialist audio equipment, or custom virtual-machine setups, check the project issue tracker and keep a recovery path available.
Security and reliability improvements
The 4.0.5 notes also describe security-related hardening:
- Removes unsafe automatic
PATHinjection in project directories. - Ensures root password hashes are erased during a factory reset.
- Hardens helper scripts against malicious command-line flags.
These changes reinforce the value of keeping the operating system and its packages updated. They should not be interpreted as a statement that all possible vulnerabilities have been eliminated; use the official security information and release notes for the most current details.
Download Omarchy 4.0.5
Get the release from the project
For a new installation, use the ISO published by the Omarchy project. Verify the downloaded image against the checksum published with the same release before writing it to USB.
Download Omarchy 4.0.5 ISO ↗Official Omarchy website ↗SHA-256: 73fd4334f1f67b19cd8a5589f9363173fc3aec07c0a59f198833eaddb66877a1
Confirm the checksum and release version on the official project page before installation. Do not use a checksum copied from an unrelated version or third-party mirror.
Update an existing Omarchy installation
- Back up important personal files and any custom configuration you cannot easily recreate.
- Connect to a reliable network and ensure the system has sufficient free disk space and power.
- Open the Omarchy menu using the configured shortcut and choose Update → Omarchy.
- Allow the update and any required migrations to finish without interrupting the machine.
- Restart if prompted, then check your kernel version and test essential devices.
The project manual explains that Omarchy updates install the latest release and system packages through its package and mirror channels. For additional details, consult the official update manual.
Install on a new PC
- Download the ISO from the official project link above.
- Verify the SHA-256 checksum using your operating system’s checksum utility.
- Write the ISO to a USB drive using a trusted image-writing tool. The process will erase the selected USB drive.
- Boot from the USB and follow the installer prompts. Read each disk and dual-boot option carefully.
- After installation, run the system update workflow and verify Wi-Fi, sound, graphics, sleep, external displays, and any specialist hardware.
Should you upgrade to Omarchy 4.0.5?
This release is especially relevant for current Omarchy users who are affected by the listed hardware, audio, graphics, boot, shell, or application issues. Users who value stability should review the release notes and make a backup before updating. New users can evaluate the ISO in a suitable test environment first, while remembering that virtual machines do not fully validate physical Wi-Fi, audio, GPU, suspend, or firmware behavior.
If your current setup is working well and contains custom kernel modules, proprietary drivers, or mission-critical workflows, schedule the update when you have time to troubleshoot and roll back if needed.
Frequently asked questions
What is new in Omarchy 4.0.5?
The release updates the default kernel to Linux 7.2.8 with BORE, refreshes the stable package snapshot including Qt 6.12, improves desktop responsiveness, and fixes a range of hardware, audio, graphics, boot, application, and security issues.
Does Omarchy 4.0.5 use Linux kernel 7.2.8?
Yes. The published release notes identify Linux 7.2.8 as the updated default kernel and mention the BORE scheduler.
How do I update from an earlier Omarchy version?
Use the Omarchy menu and select Update → Omarchy. Back up important data and follow any prompts or migration steps.
Where can I download the Omarchy 4.0.5 ISO?
Use the project release ISO link in this article and verify the checksum against the value published by the project before installing.
Will the update fix my laptop’s hardware problems?
It includes fixes for specific listed devices and configurations, but compatibility varies. Check the release notes and issue tracker for your exact hardware model.
Is Omarchy suitable for beginners?
It offers a curated desktop experience, but it is based on Arch Linux and installation involves system and disk choices. Beginners should read the installation guide and back up data before proceeding.
Can I test Omarchy before installing it on my main PC?
Yes. The official website offers information about trying Omarchy in a virtual machine. A VM is useful for exploring the desktop, though it cannot fully test physical hardware compatibility.
Official links and further reading
- Omarchy official website
- Omarchy 4.0.5 ISO
- Omarchy release notes on GitHub
- Omarchy update manual
- Linuxiac: Omarchy 4.0.5 release coverage
- Release notes mirror: Omarchy v4.0.5
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Editorial note: This article summarizes published release information and does not claim independent hands-on testing. Package versions, download availability, and installation behavior can change; check project documentation before making system changes.
