Kubuntu Forums - Kubuntu Forums .Net

Caution: still running i486 CPU? ha-ha

Qqmike — Tue, 07 Apr 2026 13:18:46 GMT

Your days are numbered, so it seems. Linus 'speaks' here.

[Abandoned] Trying to get two actions on a single file in a Dolphin Service menu

oshunluvr — Tue, 07 Apr 2026 12:49:52 GMT

I use Dolphin service menus to extract subtitles from video files. Then, if the subtitle is ssa format, I use a second service menu to convert it to srt. Independently, they both work fine. I'd like to combine this into a single service menu; i.e extract and convert automatically when the file type is ssa.

The subtitle extraction is done with a python script that I call from the service menu like this:

Code:

Exec=$HOME/.local/share/applications/mkvextract-allsubs-eng %u

The conversion to srt is much simpler and uses ffmpeg, so it's a one-liner:

Code:

ffmpeg -i "$fn" "${fn%.*}".srt

I suspect I could add the conversion function to the python script, but I don't know python at all - the python script is something I found on the 'net.

I have attempted this in the service menu:

Code:

Exec=$HOME/.local/share/applications/mkvextract-allsubs-eng %u; fn=%u; if [[ "${fn#"${fn%???}"}" = "ssa" ]]; then ffmpeg -i "$fn" "${fn%.*}".srt; rm "$fn"; fi

The results are the extraction occurs but not the conversion.

All the pieces in the if statement work from the command line so I think the issue is in the Service Menu action itself - like once the python script is called the service menu stops provessing.

Looking for ideas..

[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?

No sound upon start, automatically decreases to 0, libcanberra in settings constantly restarts

Pieniążkowice — Thu, 02 Apr 2026 12:42:57 GMT

Hi there,

I am working on a rather old computer, if you need more details about it you can look at this post here:

https://forums.linuxmint.com/viewtop...70354#p2770354

So I got Kubuntu 25.10, and the installation sort of went okay, but then I got no sound at all, which was not an issue during a LiveUSB session.

In the middle of the screen, I have a "Audio Muted" box I cannot remove. In the Sound tab in System Settings,

Code:

libcanberra

is going absolutely nuts and is constantly changing volume from a certain non-zero value to 0, and so in a loop. I can't find a way to stop this loop.

Moreover, while I can move the slider on the speakers panel to the right, the volume is automatically being reduced to 0. I do sometimes hear the speakers work but I can't stop the system from decreasing the volume. By default, they are off.

Ran

Code:

pactl subscribe

as suggested elsewhere, and I see a constant loop of new events that looks like this:

Event "new" on sink-input
Event "change" on sink-source x2
Event "change" on sink
Event "change" on source
Event "change" on sink-input
Event "remove" on sink-input
Event "change" on sink
Event "change" on source

and this is going on and on

My CPU is constantly at 50% load, which is ridiculous for an ambient workload. Memory is not impacted.

An additional piece of ibfo that may be relevant is that I get a lot of 26^~ symbols upon booting, but itbdoes not interrupt anything.

Any help appreciated.

Darn high-res display :-)

merlinsilk — Thu, 02 Apr 2026 00:18:31 GMT

Hello - and good day from the newest member here.

I have just installed 24.04 as a dual boot on my laptop with the idea of slowly but surely moving away from Windows.
But I immediately ran into a problem I can't seem to overcome: Everything on my display - I use a 4k Samsung TV and let the built-in display rest - is too small for my aging eyes. Not a new problem (on windows I just crank up the scaling), and I quickly found the global scaling in the settings - but they don't do anything! Somebody on the interweb thought that I have to logout/in - but that made no difference.
My machine is a six year old Maingear Element with an I7 and an NVIDIA GeForce GTX 1660 Ti.

Probably related but also very disturbing is the fact that I often can't find my cursor - just too small and nearly the same color as the background. I changed the cursors to a different scheme, but somehow still the old - small - one is shown on the desktop.

Any light shed on this dark situation would be highly appreciated.
Cheers,
Merlin

Firefox scrambled when I open it.

Sethcard — Tue, 31 Mar 2026 06:58:56 GMT

So when I open Firefox now it looks scrambled. I’m not sure what caused this. I am using an nvidea graphics card rtx 4070. Any ideas on what to do. I plan on doing a full reinstall, but I would like to save some stuff if I can get firefox open again.

[RESOLVED]Are a firewall and antivirus necessary in Kubuntu?

greenster — Mon, 30 Mar 2026 14:53:19 GMT

I'm keen to hear your thoughts...

Should I use a firewall and antivirus in Kubuntu?

At the moment, I'm not using either.

Is that risky?

Is Kubuntu live boot via USB C possible?

newuser0001 — Mon, 30 Mar 2026 09:42:46 GMT

Hello guys,

I want to try Kubuntu on my Dell Latitude 7320 2 in 1 detachable, which only allows to plug in USB-C devices.

Since it would not be the classical Situation where you have a USB-Stick as a booting device, my question is:

Is it generally possible to boot Kubuntu from USB-C?

I know that it will still depend on the individual device. My goal is to check Kubuntu out from the USB-C device and See if it supports auto rotation and camera properly. But if this goal is technically impossible, it would already be really helpful to know.

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.

Geekbench 6

fffranchhh — Sun, 29 Mar 2026 15:46:48 GMT

Hi,
I have two equal laptops, Toshiba Portege Z30-C. They have the same processor, an Intel Core i7-6500U, same amount of RAM memory, same SSD HD size. One of them is running Kubuntu 24.04.4 LTS and the other one is running Windows 11 Pro using a balanced Power Plan.
I have run the Geekbench CPU Benchmark in both of them and the results are much better in the machine running Windows, which was surprising to me. Is there any explanation for that?
For the Windows machine the single core score is 1092 and the multi core score is 2203, while the Linux machine got scores of 849 and 1488.
I checked the Power Management settings of the BIOS and they are the same as well.
Thank you
Albert

Has my system been compromised?

gmc42 — Sun, 29 Mar 2026 01:33:26 GMT

I am running Kubuntu 24.0.4.1 with kernel 6.8.0-106-generic. On Wednesday 25th of March there was a download of aprrox 1.1GB
while accessing a few pages with Palemoon 34.1.0. Discovery had already installed updates. Does Kubuntu ever download updates or anything else this big without asking permission or showing some indication on the screen of what it is doing? Or has my system been compromised, Palemoon perhaps? I always login in to Standard User account and never click on links in email,etc. Thanks for any help I receive.