Only a week after Plasma 6.4.1 was released, the KDE team rolled out version 6.4.2 as the second bugfix update to its 6.4 series.
Among the most notable changes is a tweak to Powerdevil, KDE’s power management service for handling sleep, suspend, and brightness, where a partial revert was made to handle a systemd limitation affecting AD-managed systems.
In light of this, for users on Plasma Mobile needing alarm wakeups from suspend, distributions may need to manually adjust the “plasma-powerdevil.service” systemd unit to enable “CAP_WAKE_ALARM” support.
Moreover, KWin, Plasma’s window manager, sees multiple fixes—including better handling of night light adjustments, improved accessibility keyboard management, and safeguards against invalid brightness overrides.
Gamers and multitaskers will also appreciate that KWin no longer stacks deleted windows, preventing potential glitches.
Apart from that, the Plasma 6.4.2 desktop includes the following key fixes:
- Discover: A bug causing incorrect delegate references in the sources page has been resolved.
- KScreen: Brightness values are now properly rounded in the display settings.
- Plasma Desktop: The “New” badge in Kickoff now uses a more visually distinct positive background color, and folder view labels have been fixed.
- Plasma Mobile: Notifications and pop-ups behave more reliably, and the do-not-disturb mode has been patched.
- NetworkManager: WireGuard connections stored privately can now activate automatically.
- Audio Volume Control: The compact applet no longer suffers from layout issues.
Under the hood, several background improvements enhance performance and security. Flatpak Permissions no longer risk a use-after-free issue when fetching system-installed apps, and libplasma now includes additional theme colors for better app integration.
For more information, refer to the release announcement or visit KDE Plasma 6.4.2’s full changelog.
As always, if you’re using a rolling release distro, keep an eye on your distribution’s repositories—version 6.4.2 is expected to land there in the coming days or weeks.
