Hello TUXEDO Fans and Open-Source Enthusiasts!
Our developer penguins have something to celebrate: with KDE Linux , a new star is rising on the stage – a worthy successor to KDE Neon. This fresh distro isn’t for couch-potato users, but for eager bug hunters, adventurous power users, and the ever-diligent KDE developers. And it’s worth it: after all, it gives the development of KDE Plasma – and with it our TUXEDO OS desktop environment – a real boost. So: onward to new adventures in the Linux universe!
Enjoy reading,
The TUXEDO OS Team
Note: We would like to keep you updated on the latest developments in TUXEDO OS with the TWIX series and introduce you to exciting applications as well as practical tips related to the KDE desktop and TUXEDO OS. However, this section should not be a one-way street: your feedback, ideas, and suggestions for improvement are very welcome! For this purpose, we have created a thread on Reddit, where you can reach us directly.
Updates TUXEDO OS
TUXEDO Control Center 2.1.20
Added support for Aquaris water cooling on Stellaris Gen7.
Fixed an issue where system profiles did not adjust the performance limits of the InfinityBook Pro Gen10 AMD.
The Sirius tachometer key fix for Wayland unfortunately had to be rolled back due to a specific bug.
Important Updates
Plasma 6.4.4
Frameworks 6.17.0
New ISO for TUXEDO OS
Plasma 6.4.4
Frameworks 6.17.0
Kernel 6.14.0–110029
Includes all updates available up to now
New Packages
tuxedo-fix-cuda-suspend
Fixes an issue where CUDA did not work correctly after waking from suspend.
tuxedo-fix-sirius-hdmi-detection
Fixes unreliable detection of HDMI monitors on the Sirius16 Gen2.
Note: This increases idle power consumption by about 10 watts. The fix is therefore only intended as a temporary solution. A new version will follow that enables it only when running on AC power.
KDE App of the Week: Sweeper – Simple Cleanup, More Privacy
Regularly cleaning up your system not only helps you stay organized but also frees up storage space and removes traces of your activity. Alongside well-known tools like BleachBit , KDE offers Sweeper , a lightweight and easy-to-use alternative that integrates seamlessly into Plasma.
With just a few clicks, Sweeper removes leftover data that accumulates in everyday use – such as the history of recently opened documents or the contents of the clipboard. You can also selectively delete application and command histories as well as the thumbnail cache. This not only frees up space but also ensures that confidential activities remain hidden on a shared computer.
Sweeper tidies up everyday system use: clipboard, recently used documents, or web traces. With just a few clicks, you create order and protect your privacy on a shared computer.
Beyond local data, Sweeper also handles web traces: cookies, local website data, form entries, or favicons can all be removed selectively. You always decide for yourself which information to keep and which to delete – striking the balance between convenience and privacy is entirely up to you.
Compared to BleachBit, Sweeper deliberately takes a more focused approach: instead of digging deep into the system, it concentrates on typical user data. This makes Sweeper especially suitable for those who want to tidy things up quickly and effortlessly – without having to go through long configuration lists.
Installation
Sweeper is part of the KDE Applications but is not included in the default installation of TUXEDO OS. You can install it anytime for all users of the system through the Discover package manager.
Info: Are you interested in more KDE applications and want to know which programs have been recently updated? A detailed overview can be found in the regularly published column This Week in KDE Apps , which summarizes new features, bug fixes, and developments from the KDE ecosystem on a weekly basis.
TUXEDO OS Tips & Tricks: Check Disk Space and Find Storage Hogs
Sooner or later, the question of available disk space comes up on every system. Especially if you’re working with multiple drives, partitions, or large data sets, it’s easy to lose track. TUXEDO OS comes with everything you need to reliably monitor storage usage and track down the biggest space hogs – whether you prefer working graphically or on the command line.
Storage Overview with Filelight
Filelight is part of the KDE Plasma base installation and provides a visual representation of disk usage. On TUXEDO OS, you can install it via the Discover software center. When launched, you select a directory or an entire partition, and the program analyzes its structure. The results are displayed in a colorful ring chart, with outer segments representing deeper subdirectories. Hovering the mouse over an area shows details like absolute sizes or percentage shares.
The tool is particularly useful for quick orientation. You’ll immediately see which directories consume the most disk space and can selectively remove unnecessary files. A handy feature is the ability to open or delete folders directly from the application. If you prefer a graphical overview and want to avoid the terminal, Filelight is the right tool for you.
Filelight visualizes storage usage graphically and makes it easy to see which directories are large or small.
The Linux Classic: „disk free“
The classic way to check used and free storage is the command-line tool df. Its name stands for “disk free,” and it comes preinstalled on all Linux systems. Running df -h
gives you a tabular overview of all mounted filesystems, displayed in human-readable units such as megabytes and gigabytes. The columns show total size, used and free space, as well as the percentage used.
One drawback is the rather plain output: columns are not always perfectly aligned, and temporary filesystems or virtual mount points that aren’t relevant for everyday use may appear. Still, df remains the reliable baseline tool, available even in minimal rescue systems. With filters or additional parameters, the output can be refined – for example, df -h --type=ext4
to show only certain filesystem types.
The df output quickly shows used and free space for all filesystems on the system.
Checking Storage with duf
If you enjoy working on the command line, duf (Disk Usage Free) offers a more modern alternative. Like df, it summarizes filesystem information, but it presents the data in a cleaner, color-highlighted table. All mounted filesystems are listed along with total size, used and free space, and usage percentage.
The duf table presents the most important storage information in a color-coded, clearly structured way.
The advantage lies in readability: columns are well-aligned and easy to understand at a glance – no extra parameters required. With duf –only local , you can display only local filesystems, leaving out network shares or virtual devices that clutter the view. This makes duf ideal for quickly checking if a partition is running out of space.
Installation
Duf is not part of the default TUXEDO OS installation, but you can install it directly from the repositories:
sudo apt install duf
More Insights with dysk
dysk is a modern command-line tool for monitoring mounted drives on Linux and macOS systems. Unlike classic tools like df or duf, dysk shows the physical source of each filesystem in the „Disk“ column. This makes it immediately clear whether it’s a removable drive, HDD, SSD, RAM disk, or an encrypted/LVM-based device.
The tabular view is highly configurable: in addition to the standard columns for device, size, usage, and free space, the output can be filtered, sorted, and customized. By default, only „normal“ storage devices like hard drives and SSDs are shown. With dysk -a , you can also include virtual and temporary mount points.
Dysk shows detailed information about origin, usage, and type of disks in a flexible table, supporting targeted analysis.
Dysk uses SI units and supports exporting tables as CSV or JSON – useful for script integration. Running dysk alone gives you an immediate overview of all mounted filesystems with their usage. If you want to know which physical devices back your partitions, dysk provides a fast and easy-to-read overview – helpful for daily use and troubleshooting.
Installation
Dysk is not yet included in the TUXEDO OS repositories. However, you can download the executable and copy it into your system. For a 64-bit PC:
wget https://dystroy.org/dysk/download/x86_64-unknown-linux-gnu/dysk
sudo mv dysk /usr/local/sbin
sudo chmod +x /usr/local/sbin/dysk
Combining the Tools
The tools introduced here provide different perspectives on storage analysis: Filelight delivers a quick graphical overview of large and small directories. df and duf provide tabular overviews of all mount points – with df being reliable and always available, while duf offers color-coded, clearly structured tables. dysk complements this by showing the physical source and type of each device – particularly useful on systems with a mix of storage media. With these tools, you’ll always stay on top of your disk space, spot bottlenecks early, and react accordingly.
Ubuntu Security Updates
The security updates listed here from Ubuntu are directly integrated into TUXEDO OS:
USN-7746–1: cipher-base vulnerability : cipher-base could be made to stall or return incorrect hash values if it received specially crafted input.
IDs: CVE-2025–9287
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS
USN-7745–1: CUPS vulnerabilities : Several security issues were fixed in CUPS.
IDs: CVE-2025–58364, CVE-2025–58060
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS
USN-7744–1: QEMU vulnerabilities : Several security issues were fixed in QEMU.
IDs: CVE-2024–3446, CVE-2024–7409, CVE-2024–4467 + 4 others
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-7743–1: libxml2 vulnerability : libxml2 could be made to crash if it received specially crafted input.
IDs: CVE-2025–9714
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS
USN-7741–1: PostgreSQL vulnerabilities : Several security issues were fixed in PostgreSQL.
IDs: CVE-2025–8713, CVE-2025–8715, CVE-2025–8714
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-7738–1: FFmpeg vulnerability : FFmpeg could be made to crash if it received specially crafted input.
IDs: CVE-2025–1594
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS
USN-7737–1: Linux kernel (Azure) vulnerabilities : Several security issues were fixed in the Linux kernel.
IDs: CVE-2025–21741, CVE-2024–57999, CVE-2024–58071 + 185 others
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS
USN-7736–1: Django vulnerability : Django could be SQL injected if it received a suitably crafted dictionary.
IDs: CVE-2025–57833
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS
USN-7734–1: Ruby vulnerabilities : Several security issues were fixed in Ruby.
IDs: CVE-2024–27282, CVE-2024–27280, CVE-2025–24294 + 1 other
Affects: Ubuntu 25.04, Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS
USN-7732–1: KMail Account Wizard vulnerability : KMail Account Wizard uses an insecure protocol.
IDs: CVE-2024–50624
Affects: Ubuntu 24.04 LTS, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS