Kubuntu Forums - 25.04

[Post-Install]Going from Clean Install to a Kubuntu & Windows 10 Dual Boot

Punk Solar — Tue, 07 Apr 2026 11:52:18 GMT

So I have had a great experience with gaming on Ubuntu/Kubuntu so far, the one or two extra set up steps I need for certain games was worth the significant quality of life improvement compared to Windows. However, I have learned that my VR headset, the Vive Cosmos does not have native drivers, and there is no clean, well-documented approach to third-party setup.
I tried several methods and found no luck, because they simply weren't built for running on Linux.
So I want to set up a dual boot for Windows 10, so I can run my VR games natively and any other software I want/need to use that simply doesn't have any safe or reliable workaround for running on Kubuntu.
Problem is, all the dual booting guides I find are about going from a Windows 10 set up to a Linux/Windows dual-boot, where as I need help with the opposite approach: A clean install of Kubuntu to a Kubuntu - Windows 10 Dual Boot.
What is the recommended way of setting up a Windows 10 dual-boot partition from Kubuntu?

I have already made a Windows 10 installation USB via Ventoy, what I need help with now is what are the appropriate steps of preparing for installing that disk image.

Edit: For future reference I should clarify: I have four hard drives installed in my build, 3 of them are solid states, so I have options for where to install the Windows 10 OS

[Hardware]USB Pen Drives That Often Don't Work

Nunzio77 — Tue, 07 Apr 2026 10:41:51 GMT

Hi,
I've had several USB pen drives suddenly stop working, failing to mount, resulting in an error. Even with the repair tool, they don't work again. However, when I insert them into a Windows 10 or 11 system, the repair tool starts working again, even in Kubuntu.
What causes these USB pen drives to crash in Kubuntu?
If it's a bug, when will it be fixed?
I'm using Kubuntu 25.10.

System Crashing - Whenever transcoding or optimizing in Plex

LuigiCalamar — Tue, 07 Apr 2026 01:00:17 GMT

System specs are above/left.

I thought I had an SSD over-heating issue - added heat sink - and that helped.

However - I just tried optimizing a video file on plex (which is running on this box) - and the system crashed immediately - no time for anything to heat up.

I guess it could be something to do with Plex causing an issue - but this really feels like some t ype of hardware issue.

Any thoughts/ideas would be greatly appreciated.

[System]Creating a new, larger logo during Kubuntu startup

Nunzio77 — Fri, 03 Apr 2026 08:00:22 GMT

Given the upcoming release of version 26.04, why not create a new, larger logo than the current one during Kubuntu startup?
It would be more visually appealing.

Wine 11

jowivk — Thu, 02 Apr 2026 18:31:31 GMT

Hi! I have read that Wine v11 is a big step forward. Wanted to try it. But the Ubuntu repo only has Wine v10.
Tried to install from WineHQ but messed up my system completely.
Does anyone know when version 11 will be available for us?

keyboard shortcuts in Wayland impossible at present if ever?

barfly — Sun, 29 Mar 2026 18:16:07 GMT

I was advised to post this in these more general forums - first put into Resolute Racoon Review.

I am not referring to shortcuts as in links to applications or files/folders.

I am referring to the issue with Wayland and it's inability to implement a system-wide pasting of completed snippets of text or code to any desktop or activity. Before Kubuntu 24.01 there was a very simple system application to implement this in the system keyboard menu. With the introduction of Wayland, that has been quietly dropped for obvious reasons.

This has very serious ramifications for many users that are so used to a keyboard shortcut to insert a passage of text, an address, email address or snippet of oft-used code into a document or text.
The ramifications on the productivity of users so used to this facility is enormous.

Even in Windows it is a very simple thing to set up.

This is the primary failing of Wayland and one reason for the massive backlash against it's precipitous introduction. A form of keyboard logging across applications and desktops is required for this to be implemented - the antithesis of the whole philosophy behind Wayland.

I do not see how it is ever going to be resolved, but if Wayland is to be implemented wholesale across the Linux world we will be driving many workers back into the arms of Microsoft and Apple.

I sincerely hope this can be overcome in some way. The constant push by Canconical and other developers to prioritise security over function and usefulness is self defeating. Linux is inherently more secure than most other systems, and this constant drive to enhance security over functionality I find absolutely barmy.

[Desktop]Bad fractional scaling on 125% on Apache NetBeans Xorg

Andy Glaros — Sat, 28 Mar 2026 02:41:40 GMT

Hey guys, Im having trouble lately with my newly installed kubuntu on my hp 15s with intel iris xe. Currently im using fractional scaling of 125% and I seem to expirience problems on xorg particularly with the scaling of the NetBeans IDE and OpenJDK. The IDE doesnt seem to exactly follow the system fractional scaling, specifically the toolbar buttons and ui icons are uncomfortably small on a normal ui text and its a mess...When I tried using

export _JAVA_OPTIONS="-Dsun.java2d.uiScale=1.5 -Dsun.java2d.font.uiScale=1.5"

or putting it on NetBeans startup flags, nothing happens, it just goes back to scaling 1...basically java on kde only scales to 1 being small and 2 being huge. On the other hand, on wayland by selecting " let system scale apps" netbeans is scaled fine but its verry blurry and uncomfortable to use. Basically I want to find a way to force scale java apps to 1.5 without java always rounding it to eather 1 or 2 on xorg.

It would be a big thank you if someone could help me fix this 🙏

Nvidia drivers don't seem to be working despite having them installed via Kubuntu Driver Manager

cyma5 — Thu, 26 Mar 2026 18:59:25 GMT

I am using Kubuntu 24.04 LTS and I was trying to install the Nvidia drivers but for whatever reason, it doesn't work by recognizing my monitor is 180 Hz, just stuck on 60 and my other monitor doesn't work at all. No less, the Nvidia server driver settings doesn't recognize anything either. I currently have the 590 drivers installed through Kubuntu Driver Manager.

[Hardware]GPU on Youtube

WebHeer — Thu, 26 Mar 2026 15:23:45 GMT

Hello Experts

If I play a YouTube video in Kubuntu on my Lenovo ideaCentre Mini, the GPU in the system monitor remains at 0, so it is not used. Is this normal, or can I do something about this?
I'd love to hear it,

Kind regards
WebHeer

[Solved] Cannot switch to Wayland even though I'm running Xwayland.

bendipa1 — Wed, 25 Mar 2026 23:41:45 GMT

As title says I don't appear to have a means of switching to Wayland. I've read that the way this is done is on the SDDM login page there is an option to switch there, but I've never seen this option on my login screen. Here is an extract of my system details.

Code:

$ inxi -Fxz

System:
Kernel: 6.14.0-37-generic arch: x86_64 bits: 64 compiler: gcc v: 13.3.0
Desktop: KDE Plasma v: 5.27.12 tk: Qt v: 5.15.13 wm: kwin_x11 dm: SDDM
Distro: Kubuntu 24.04.4 LTS (Noble Numbat) base: Ubuntu
Machine:
Type: Desktop System: Dell product: Vostro 470 v: N/A
serial:  Chassis: type: 3 serial: 
Mobo: Dell model: 0NW73C v: A01 serial:  UEFI: Dell
v: A14 date: 06/25/2018
CPU:
Info: quad core model: Intel Core i5-3470 bits: 64 type: MCP
arch: Ivy Bridge rev: 9 cache: L1: 256 KiB L2: 1024 KiB L3: 6 MiB
Speed (MHz): avg: 1599 high: 1600 min/max: 1600/3600 cores: 1: 1600
2: 1598 3: 1600 4: 1598 bogomips: 25567
Flags: avx ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
Device-1: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics vendor: Dell
driver: i915 v: kernel arch: Gen-7 ports: active: HDMI-A-1 empty: DP-1,VGA-1
bus-ID: 00:02.0 chip-ID: 8086:0152
Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6
compositor: kwin_x11 driver: X: loaded: modesetting unloaded: fbdev,vesa
dri: crocus gpu: i915 display-ID: :0 screens: 1

Finally sorted this. I needed

plasma-workspace-wayland

to be installed. inxi now showing:

Code:

Graphics:
Device-1: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics vendor: Dell
driver: i915 v: kernel arch: Gen-7 bus-ID: 00:02.0
Display: wayland server: X.org v: 1.21.1.11 with: Xwayland v: 23.2.6
compositor: kwin_wayland driver: X: loaded: modesetting unloaded: fbdev,vesa
dri: crocus gpu: i915 resolution: 1920x1080
API: EGL v: 1.5 drivers: crocus,swrast platforms:
active: gbm,wayland,x11,surfaceless,device inactive: N/A
API: OpenGL v: 4.5 compat-v: 4.2 vendor: intel mesa
v: 25.2.8-0ubuntu0.24.04.1 glx-v: 1.4 direct-render: yes renderer: Mesa
Intel HD Graphics 2500 (IVB GT1)
API: Vulkan v: 1.3.275 drivers: N/A surfaces: xcb,xlib,wayland devices: 2

Will we be able to dump snap forever?

Gromm — Thu, 19 Mar 2026 10:44:26 GMT

Hello,

I am very happy with this for my Kubuntu 24.04 installation. https://www.kubuntuforums.net/forum/...et-rid-of-snap
However, I also read lots of messages about further integration of snap into the newer Ubuntu-family versions. This in such a way it might break your system if you remove it.
What will the future look like?

[SOLVED]Today upgrade create error in Dolphin and jpeg application

sensiclaudio — Wed, 18 Mar 2026 20:56:25 GMT

Good Evening , today libexiv2-28 and libexiv2-data is update.

Now Dolphin and any application for image Jpg go in crash

How to ?

[RESOLVED]Problem with kioslave5: Looping Error

wonder — Wed, 18 Mar 2026 11:19:58 GMT

The thing is, I don't know how or why, but now this is happening to me. When I open Dolphin and it has to recreate a thumbnail, a lot of kioslave5 error windows pop up, and honestly, I don't know what's causing it.

I took a snapshot, then rolled back to Kubuntu 24.04.3 (from August 2025), updated with the available updates, restarted, and I'm still getting the error.

I've been searching but haven't found anything that fixes it...

Any ideas?

Thanks in advance.

Edit: I'm adding that Gwenview isn't opening any images for me.

Edit 2:
The info for developers is:

Code:

Application: kioslave5 (kioslave5), signal: Segmentation fault




[KCrash Handler]

#4 0x0000000000000000 in ?? ()

#5 0x00007ae5d4bb55c1 in KExiv2Iface::KExiv2::load(QString const&) const () from /lib/x86_64-linux-gnu/libKF5KExiv2.so.15.0.0

#6 0x00007ae5d4bb5dc9 in KExiv2Iface::KExiv2::KExiv2(QString const&) () from /lib/x86_64-linux-gnu/libKF5KExiv2.so.15.0.0

#7 0x00007ae5d5e4e118 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/thumbcreator/jpegthumbnail.so

#8 0x00007ae61491270b in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so

#9 0x00007ae61491639d in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so

#10 0x00007ae6149174b4 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so

#11 0x00007ae614918ab9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so

#12 0x00007ae6147ff0bf in ?? () from /lib/x86_64-linux-gnu/libKF5KIOCore.so.5

#13 0x00007ae6147f676d in KIO::SlaveBase::dispatch(int, QByteArray const&) () from /lib/x86_64-linux-gnu/libKF5KIOCore.so.5

#14 0x00007ae6147f70c6 in KIO::SlaveBase::dispatchLoop() () from /lib/x86_64-linux-gnu/libKF5KIOCore.so.5

#15 0x00007ae61491421b in kdemain () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so

#16 0x00005a41e5e7450c in ?? ()

#17 0x00007ae61382a1ca in __libc_start_call_main (main=main@entry=0x5a41e5e74320, argc=argc@entry=5, argv=argv@entry=0x7ffc5edf5ad8) at ../sysdeps/nptl/libc_start_call_main.h:58

#18 0x00007ae61382a28b in __libc_start_main_impl (main=0x5a41e5e74320, argc=5, argv=0x7ffc5edf5ad8, init=, fini=, rtld_fini=, stack_end=0x7ffc5edf5ac8) at ../csu/libc-start.c:360

#19 0x00005a41e5e74785 in ?? ()

[Inferior 1 (process 16222) detached]

Edit 3:
Fixed with this:

Code:

sudo apt install libexiv2-27=0.27.6-1build1

I downgraded that package, just to see if it was the problem.
It did indeed fix it; after restarting, it's working.
Now it indicates there's an update, so for now I'll freeze it on this version...

Does System Monitor crash sometimes on start up?

vanadiumboy — Tue, 17 Mar 2026 23:25:38 GMT

I have Kubuntu 24.04
It hasn't happened in a week or 2 but before that, very rarely, it would crash at startup.

I have a AMD Radeon RX 6800 video card and Ryzen 5 3600 3.6 GHz CPU.
When I open System Monitor, it opens on Overview so I quickly click on History.

I always keep my system up to date.

[SOLVED]Find older version of a flatpak

CDR0224 — Sun, 15 Mar 2026 16:37:40 GMT

I need the Gimp 3.0.8 flatpak, but I can't find any way to download it. I always get the new 3.2 version.
I found a few places that offered the download, but I don't know if I can trust those ...

NOTE: Not sure this is the right forum, so feel free to move the topic.