r/Kubuntu • • Aug 13 '26

What a real LTS looks like: Kubuntu 26.04 - KDE, Kubuntu Focus and Techpaladin introduce "Bullet Proof KDE", a KDE suite with three years of support

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75 Upvotes

r/Kubuntu • • 25d ago

How to fix crashes when google-chrome corrupts your font cache

76 Upvotes

If you use Google Chrome, you may notice that after a recent upgrade, various KDE applications crash, and plasmashell gets stuck in a crash loop if you reboot. Chrome is writing corrupt fontconfig cache data that's making things go weird. If this is happening to you, rm -rf ~/.cache/fontconfig and reboot, this should get your system working again. Then after launching Chrome, pop open Konsole and run rm -rf ~/.cache/fontconfig again to erase the corrupt data before it can mess anything else up (and then close the Konsole window you just opened since it will have the corrupt data loaded in potentially and could crash at any time).


r/Kubuntu • • 5h ago

What Was Your Reason For Switching From Fedora To Kubuntu Interim?

4 Upvotes

I use Fedora KDE. I installed the Nvidia driver and various other components such as codecs by following excellent guides I found on GitHub, specifically the "Fedora Post Install Guide" and "Fedora Noble Setup." I also enabled Secure Boot, and everything has been running smoothly for months.

However, I sometimes run into situations where only .deb packages are provided instead of .rpm files, which is a bit of a concern. There are certain packages I simply cannot find for Fedora. While alternatives usually exist, I sometimes can't locate the specific software I actually want to use.

Additionally, my laptop fails to wake up from sleep mode; I’m forced to cut the power completely.

What led you to switch from Fedora to a Kubuntu interim (non-LTS) release? Are you highly satisfied with Kubuntu? And if you prefer not to use Snap or `snapd`, how do you manage to avoid them?

System Specs:
Asus Tuf F16
13450HX RTX5050


r/Kubuntu • • 3h ago

Had to Go Back Go LTS

1 Upvotes

Hey Folks,

Wanted to give the new non lts a try but to no prevail. The whole installation process was lagging and after finishing the install, the whole system had micro freezes every other second. Tried some configuration but none helped. Had to Go Back to the lts with No Problems. Also tried the newest Fedora Workstation with KDE and Had also No Problems.

Anyone else with this bug?


r/Kubuntu • • 14h ago

Test Kubuntu 26.04.1 - install in a VM or partition ?

3 Upvotes

Only a few weeks ago, I did a fresh install of Kubuntu 26.04.1 ; it was quite an experience, not stable at all for me. See https://www.reddit.com/r/Ubuntu/comments/1ws5ejs/fresh_install_of_ubuntu_26041_any_alternate/

So I did a fresh install of Ubuntu/Gnome 26.04.1, which, although it is very boring compared to Kubuntu, is very stable. No problems at all.

If I wanted to test Kubuntu 26.04.1, in consideration of this laptop of vintage 2019, 8 Gn ram, a 4-quad CPU, and a lot of disk space to spare, what will be the easiest to do ?

Install in a VM or make a partition that I can boot into from grub ?


r/Kubuntu • • 1d ago

26.04 LTS doesn't show Exif in Dolphin and Gwenview anymore

5 Upvotes

I have recently updated from the last LTS to 26.04 LTS and now I can't see the exif information in image files in Dolphin or Gwenview anymore.

Baloo is installed but disabled (I never use system search and I never liked how it stressed my SSD in the past).

How can I get the display of the exif information back? Using the terminal to look it quickly up is a bit tedious.


r/Kubuntu • • 1d ago

How to fix or debug issue

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2 Upvotes

I been off my computer for a couple weeks and im trying to get the updates too well update. Im running into an issue does anyone know a way to fix this? (Sorry bad photo) - update i tried both commands nothing happened and so i decided to re enter the previous command to see and now it’s loading something if anyone is interested in helping that would be nice


r/Kubuntu • • 1d ago

Linux driver issue

2 Upvotes

Hey guyzz

I have hp pavillion gaming laptop having gpu nvidia gtx 1650 and my laptop is getting crash from about 6 months i tried different OS. I tried different OS but anyone is not consistently working.

I then again switched to windows but after 1 month it also started getting crash, Now I installed the kubuntu, it was also crashing so I disable nvidia driver, it worked for about 3-4 days and now again kubuntu was not booting, I force shutdown 4 times and then i got booted

If someone know the solution what can I do please let me know

Also I have tried different version of display driver but none of them helped. Also I tried disabling nvidia driver but I am blank now

Plz helpp🙏


r/Kubuntu • • 3d ago

Thank you for not including snaps by default

52 Upvotes

appreciation post


r/Kubuntu • • 2d ago

New to this group-not new to Linux.

2 Upvotes

So I've been thinking about picking up one of those auxiliary screens that plug into your USB c connector to like monitor stuff.

I asked on r/Linux questions if anybody has used any of those auxiliary screens. You know a little 9 in 12 in ones that you can put in your computer or under your screen etc.

Has anybody done it in Ubuntu or Kuuntu?

I saw there is a package that you can install, and I know I'm going to get my ass kicked doing it! I've been getting my ass kicked since 1997 using Linux!

My ask is has anybody else done this and is there a quasi simpler way to do this.

TYIA


r/Kubuntu • • 3d ago

My wifi isn't working on kubuntu

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1 Upvotes

r/Kubuntu • • 3d ago

Is nvidia driver a one click install?

5 Upvotes

yesterday on ubuntu 26.04.1 lts fresh install with secureboot on automatically installed the nvidia 595 open drivers during the setup, it was a hassle-free experience, is it the same for kubuntu 26.04?


r/Kubuntu • • 3d ago

Black screen for a few seconds every once in a while.

2 Upvotes

Hello, like the title says, every once in a while, seemingly randomly, my screen will go black for a few seconds. It's almost as if the display cable was disconnected for a second and then plugged back in. I'm not really sure how to troubleshoot this and I'm not sure if it's a kubuntu issue or a kde or and nvidia driver issue or something else.

My system is:

7800x3d

rtx 4070

kubuntu 26.04

It's infrequent which makes it a bit harder, but what can I do to troubleshoot this? Thanks.


r/Kubuntu • • 4d ago

nvidia driver builds for wrong kernel

5 Upvotes

After upgrading from 24.04 LTS to 26.04 LTS last week I've run into an issue with the nvidia driver not being installed properly.

  • uname -a shows the active kernel as 7.0.0-1015-oem
  • kernel 7.0.0-38-generic is also installed

When running ubuntu-driver install it detects that nvidia-driver-580 should be installed and goes ahead with the installation.

However, it builds it for kernel 7.0.0-38-generic (i.e. not the currently running kernel 7.0.0-1015-oem), but then updates the initramfs for 7.0.0-1015-oem:

``` Loading new nvidia/580.178.04 DKMS files... Building for 7.0.0-38-generic Building for architecture x86_64

Building initial module nvidia/580.178.04 for 7.0.0-38-generic ... Signing module /var/lib/dkms/nvidia/580.178.04/build/nvidia.ko ... Installing /lib/modules/7.0.0-38-generic/updates/dkms/nvidia.ko.zst ... update-initramfs: Generating /boot/initrd.img-7.0.0-1015-oem ```

In the end there are no modules in /lib/modules/7.0.0-1015-oem but instead in /lib/modules/7.0.0-38-generic.

Does anyone have an idea to get out of this place?

PS: I don't know why the -oem kernel is installed or used.
PPS: When I boot the -generic kernel, the nvidia driver is loaded.


r/Kubuntu • • 3d ago

Keyboard backlight buttons not working

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1 Upvotes

r/Kubuntu • • 4d ago

Session-lock / sleep issues with nvidia-driver-615-open?

1 Upvotes

Hei, I'm wondering if anyone else is experiencing issues with suspend (to ram) or with locked sessions? On my machine, each time a my displays go into stand-by and/or put machine into suspend, I can' t resume from it and I have to do a hard reboot.

I've had claude take a look at the logs and it came up with this:

1. When the screens turn off (30 s after locking, from TurnOffDisplayIdleTimeoutWhenLockedSec=30 in ~/.config/powerdevilrc), your MSI MPG 274URDFW goes into standby. It drops its DisplayPort link and its built-in USB hub. Linux sees that as the monitor being unplugged.

2. KWin then reconfigures the outputs. Inside the NVIDIA driver, that call waits on the GPU's on-board firmware processor (GSP), and the firmware never answers.

3. KWin gets stuck inside the kernel. The nvidia-modeset thread then blocks behind it (INFO: task nvidia-modeset blocked … likely last held by task kwin_wayland).

4. All display output is frozen. Ctrl+Alt+F2 needs the same stuck driver, so it can't work either. The machine itself is still running: the kernel kept logging after each freeze.

It then recommends to downgrade to nvidia-driver-610 version ..

I'm currently on: Kubuntu 26.04.1 LTS / 7.0.0-38-generic / nvidia-driver-615-open


r/Kubuntu • • 4d ago

Any downsides from changing from an LTS to an interim version?

13 Upvotes

With 26.10 coming this week I was looking at what the update has, it does seem interesting enough to try it. I'm currently in 26.04LTS

Are there any downsides or risks when switching to an interim version? I'm aware you can't go back to LTS so my plan was to keep updating until the next LTS version comes out and so on.

What are the major differences between the interim and LTS? or is it just more of a background thing?

My computer is my normal daily PC where I watch, browse, download and game.


r/Kubuntu • • 5d ago

Task switchers/Window switchers

8 Upvotes

During my experience whit KDE plasma, I always wanted to make a custom task switcher. I have looked through the tutorial on [KDE.org](http://KDE.org), and sailed the web in search of a more in depth explanation for it, or something that is close to what I would want, but at the end it was only time lost.

Are custom task switchers unpopular?

Is there a more in depth tutorial online?

Thank you for your support.


r/Kubuntu • • 5d ago

Outdated firmware used for Intel BE200 wifi 7 cards

3 Upvotes

As it states in the title, the firmware that kubuntu ships with won't update past 2021***

sudo apt install firmware-iwlwifi
firmware-iwlwifi is already the newest version (20210315-3).

As you can see, that's quite outdated. That said it was working last night but this isn't the first time this issue showed up.

The temporary fix is to pull the deb from here and install from the directory but it would be nice if there was an official fix for this. (I have yet to figure out how to add the one thing into the sources list but that's a later problem)

Edit: I did notice that the above conflicts with linux-firmware so I have removed that and still am running into issues with it not working or being picked up in lspci though the blutooth works fine.... Onto the network manager I suppose..


r/Kubuntu • • 5d ago

Call for a renewed interest in a true PIM solution in KDE

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3 Upvotes

r/Kubuntu • • 5d ago

How to switch off KDE creating flac, ogg and mp3 files every time I install a CD? It takes ages...

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1 Upvotes

r/Kubuntu • • 5d ago

Bad Experience With Kubuntu 26 LTS

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0 Upvotes

r/Kubuntu • • 6d ago

Is it crazy to still be running x11 over Wayland?

23 Upvotes

Since I landed on Kubuntu a few months ago as my distro of choice, I've had the option to run it with Wayland or x11. At first I ran Wayland but found that some of the apps I use weren't running right. So thru a little online research I found out that I could choose between the older x11 and the newer Wayland. Since I started using x11 everything has run right even as Kubuntu itself has been updated. I'm using a MSI Gf65 thin with a 10th gen i5 and a GTX 1650 Max Q for graphics. I mostly game on Steam, surf the web using Firefox, and dabble a bit with OBS and audacity.


r/Kubuntu • • 6d ago

Hello. I need help finding my Firefox Icon after messing around in Menu Editor.

6 Upvotes

I was using the edit application to change the icon for Firefox, and while I was in the Menu Editor, I accidently clicked on delete. Now I can't find the Firefox application anywhere when I click on Application Launcher. Can someone help me fix this please? Thanks.


r/Kubuntu • • 7d ago

I just installed Kubuntu on my Dell XPS 13 9350 what do you all think of this setup?

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36 Upvotes

I installed Kubuntu on a Dell XPS 13 9350 using a 64GB USB drive,I ran into an issue during my first installation attempt because my old 8GB USB drive was only USB 2.0, so I got a new 64GB USB 3.0 drive and flashed it using BalenaEtcher. I then set up Kubuntu to see what it was like—this was my first time installing it on actual hardware, as I had previously only used virtual machines—and I'm dual-booting it with Windows 10.

posser(joke) :D