Kubuntu Forums - Help the New Guy

[RESOLVED]Changing the panel/taskbar color

JamesKB — Sun, 16 Aug 2026 02:40:53 GMT

OS: 26.04
How does one Ccange the panel/taskbar color?

[RESOLVED]MS Edge opens but freezes

JamesKB — Sat, 15 Aug 2026 01:56:18 GMT

Dell Studio XPS 8100 with a 1 TB ssd, 16GB ram
OS: Kubuntu 26.04

I installed microsoft-edge-stable_151.0.4129.86-1_amd64.debb. It opens but then freezes. All I can do is close it. It never asks if I want to sync my shortcuts across all my devices. I cannot enter a url in the address bar. Nothing works. All I can do is close it. Ideas?

Thank you for your time.
--
James

Moving from openSUSE Leap to Kubuntu (and to Wayland)

anandrajan — Tue, 11 Aug 2026 16:06:40 GMT

I’ve been running SUSE/openSUSE since late 2003 (following a Linux journey that began with Slackware in 1995 and then RedHat in 1996). With openSUSE transitioning toward ALP (which I affectionately call the alien linux platform), I decided to switch my primary workstation to Kubuntu 26.04 LTS. Here are my installation impressions and a question regarding Wayland vs. X11.

Hardware:

Motherboard: ASUS Prime X299-A II
GPU: NVIDIA GeForce RTX 4090
Storage: NVMe M.2 (2TB)
CPU / Network: Standard high-end desktop configuration

Installation Impressions: I was previously running openSUSE Leap 15.6 on the 2TB NVMe drive. I booted the Kubuntu 26.04 installer aiming to expand my / partition (formatted as ext4). While the GUI partitioning step offered repartitioning options, the layout changes didn't take, so I opted to reuse the existing partition structure while explicitly leaving /home unformatted.

I stuck with the open-source Nouveau driver during the installation. At the very end of the installation process, the monitor showed line artifacts and began blinking during session teardown. I had to trigger a manual reboot and expected to re-do the install, but to my pleasant surprise, the base system installed successfully! My /home directory remained intact, and after booting in, I immediately installed the proprietary NVIDIA 595.84 drivers.

The Wayland / Gamma / SDDM Friction: Out of the box, Kubuntu 26.04 defaulted to Plasma 6 on Wayland. Coming from openSUSE (where I relied on nvdock), I immediately hit a wall: under Wayland, hardware color ramps and gamma adjustments inside nvidia-settings and kgamma are unavailable. At the ripe young age of 65, default display brightness without fine-grained gamma correction is a dealbreaker for my eyes.

Furthermore, logging out from the Wayland session produced a black screen with two unrendered, unreadable icon outlines (< and another symbol)—a result of KWin's logout greeter overlay failing to render cleanly over the display manager handoff.

Question for the Community: Since Kubuntu 26.04 ships Wayland-only by default on the ISO, what is the officially recommended procedure to install and switch back to a native Plasma (X11) session?

Specifically:

Which meta-packages (plasma-workspace-x11, xorg, etc.) should be pulled from the universe repositories for a clean X11 desktop?
Is X11 still recommended for users who require hardware gamma controls (kgamma/nvidia-settings) and rock-solid session teardowns on modern NVIDIA GPUs until Wayland compositor protocols mature?

Thanks for any insight!

AMD A8-7680 APU wont play nice so im stuck in safe graphics mode

Old and Confused — Mon, 10 Aug 2026 11:35:42 GMT

Ok so its a fresh install of 26 04 lts had to do it in safe graphics mode. All installed no issue. Reboot got past the logo and black screen nothing no f keys or anything i could think of would work. Had to hard reset and Held shift key and modified the boot to nomodeset this got me to the log in and I changed the nano grub settings to the same. I can boot in now but the resolution is 800/600 and nothing fits on the screen LOL Help. Contrary to above I have no idea what im doing what little i know is from weeks of google and note taking LOL please explain a simply as you can as this may as well be in klingon for all i can understand.

[RESOLVED]Kubuntu boot screen?

JamesKB — Sun, 09 Aug 2026 00:18:54 GMT

OS: Kubuntu 26.04
Kubuntu is installed
Kubuntu is the only OS installed
KDE Plasma ver 6.6.4

Every time I boot my computer I get a strange message. I don't know if this is normal. It displays for 30-60 seconds then displays the normal login screen.

This is the message on a black screen and white text:

>>Checking Media Presence.......
>>Media Present......
>>Start PXE over IPv4.

Is this normal?

Thanks for your time.
--
James

Computer keeps freezing

Bluey — Thu, 06 Aug 2026 19:54:46 GMT

I've been having this issue for months now. I don't know exactly how it happens, but every now and then I'll open a program or a new tab in my browser and suddenly everything slows down to the point of freezing. This is similar to the issue I had in my previous post, but I've switched to the Nvidia driver since then, so I don't think that's the problem. How exactly do I troubleshoot this? (Currently using Kubuntu 24.04 with Plasma version 5.27.12)

Code:

System:
  Host: jordan-inspiron3670 Kernel: 7.0.0-28-generic arch: x86_64 bits: 64
  Desktop: KDE Plasma v: 5.27.12 Distro: Kubuntu 24.04.4 LTS (Noble Numbat)
Machine:
  Type: Desktop System: Dell product: Inspiron 3670 v: N/A
    serial: 
  Mobo: Dell model: 0H4VK7 v: A01 serial:  UEFI: Dell
    v: 2.26.0 date: 11/22/2022
CPU:
  Info: 6-core model: Intel Core i7-8700 bits: 64 type: MT MCP cache:
    L2: 1.5 MiB
  Speed (MHz): avg: 891 min/max: 800/4600 cores: 1: 900 2: 900 3: 900 4: 900
    5: 900 6: 900 7: 800 8: 900 9: 900 10: 900 11: 900 12: 900
Graphics:
  Device-1: Intel CoffeeLake-S GT2 [UHD Graphics 630] driver: i915 v: kernel
  Device-2: NVIDIA GP108 [GeForce GT 1030] driver: nvidia v: 580.173.02
  Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X:
    loaded: modesetting,nvidia unloaded: fbdev,nouveau,vesa dri: iris gpu: i915
    resolution: 1920x1080~60Hz
  API: EGL v: 1.5 drivers: iris,nvidia,swrast
    platforms: gbm,x11,surfaceless,device
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: intel mesa
    v: 25.2.8-0ubuntu0.24.04.2 renderer: Mesa Intel UHD Graphics 630 (CFL GT2)
  API: Vulkan v: 1.3.275 drivers: N/A surfaces: xcb,xlib
Audio:
  Device-1: Intel Cannon Lake PCH cAVS driver: snd_hda_intel
  Device-2: NVIDIA GP108 High Definition Audio driver: snd_hda_intel
  API: ALSA v: k7.0.0-28-generic status: kernel-api
  Server-1: PipeWire v: 1.0.5 status: active
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    driver: r8169
  IF: enp2s0 state: up speed: 1000 Mbps duplex: full mac: 8c:ec:4b:79:06:3a
  Device-2: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter
    driver: ath9k
  IF: wlp3s0 state: down mac: 90:32:4b:7f:d6:ed
Bluetooth:
  Device-1: Qualcomm Atheros driver: btusb type: USB
  Report: hciconfig ID: hci0 rfk-id: 1 state: down
    bt-service: enabled,running rfk-block: hardware: no software: yes
    address: 90:32:4B:7F:D6:EE
RAID:
  Hardware-1: Intel SATA Controller [RAID mode] driver: ahci
Drives:
  Local Storage: total: 931.51 GiB used: 129.89 GiB (13.9%)
  ID-1: /dev/sda vendor: Seagate model: ST1000DM010-2EP102 size: 931.51 GiB
Partition:
  ID-1: / size: 915.53 GiB used: 129.89 GiB (14.2%) fs: ext4 dev: /dev/sda2
  ID-2: /boot/efi size: 299.4 MiB used: 7.8 MiB (2.6%) fs: vfat
    dev: /dev/sda1
Swap:
  ID-1: swap-1 type: file size: 512 MiB used: 0 KiB (0.0%) file: /swapfile
Sensors:
  System Temperatures: cpu: 31.0 C pch: 53.0 C mobo: 31.0 C
  Fan Speeds (rpm): cpu: 996
Info:
  Memory: total: 12 GiB available: 11.5 GiB used: 3.78 GiB (32.8%)
  Processes: 297 Uptime: 27m Shell: Bash inxi: 3.3.34

Best Snagit alternative for kubuntu

JamesKB — Thu, 06 Aug 2026 16:14:46 GMT

Best Snagit (screen capture) alternative for kubuntu?

Thanks for your time.
--
James

CPU Temp weirdly high at start up and on idle, maybe reporting wrong?

Nexus1357 — Thu, 06 Aug 2026 14:38:25 GMT

Hi all,

Today I was playing a not very graphically intense visual novel style game, when I noticed quite a lot noise coming from my CPU fan, going from that I looked up how to check system temps on linux, as I'm a relatively new user. From there I downloaded Psensor and both that and the sensor command were reporting unusually high temps of 80+ celcius. I then contacted my tech-savvy friend who got me onto linux, we then tried to figure the issue out by:

Installed Btop and confirmed it still shows the unusual temps on Btop even though it was reporting a cpu usage of about 5% at 86 celcius.
We ran sensor detect, and accepted all defaults, we then rebooted the pc.
We attempted cat /sys/class/thermal/thermal_zone*/temp and it told us that no such file existed. Also when we ran ls /sys/class/thermal all we got were cooling devices.
As a sanity check, we opened up system manager and created a new page specifically for checking the CPU temp, and it again reported high temps 85 - 90 celcius in all of my cores, even though CPU usage was again only 5%.

Here are my system specs:
CPU: AMD Ryzen 5 3600 6-core processor
Motherboard: ASRock B450M-HDV R4.0
OS: Kubuntu 26.04 LTS running Linux 7.0.0-29-generic It is installed on the Desktop PC itself, is the only OS on the system, and is running KDE Plasma Version 6.6.5
GPU: NVIDIA GeForce RTX 2060 Rev. A

Thanks for reading, any and all help is massively appreciated.

I messed up my login screen

TotallyNotATree — Fri, 31 Jul 2026 15:16:02 GMT

So, I was attempting to get a Qt5 login theme, specifically sugar candy, to work on a fresh install of Kubuntu with Qt6. It was just showing a white screen with a password box and showing my user but no visual details and no way to switch user.

Eventually, through installing all the compatibility packages and then editing the "import qtgraphicaleffects 1.0" (or something like that) to the compatibility one, I was able to get it working in the test screen but not on the actual login screen.

It was then I was directed by all the guides I was working with to the etc/sddm.conf.d/ directory, where some .conf files existed, being 10-wayland.conf, 20-kubuntu.conf, and kde_settings.conf. kde_settings.conf had the current theme set to sugar-candy, but 20-kubuntu.conf did not, and had it set to kubuntu.

I, based on advice I interpreted online, created a .conf file called 99-theme.conf or something like that to load last and just put 2 lines, being the theme header and current=sugar-candy. I also hashed out the current=kubuntu line under the theme section of 20-kubuntu.conf.

When this still did not work, I saw somewhere that Wayland may have been causing the issue considering how long ago the last update for the theme was. So I changed the DisplayServer=wayland in 10-wayland.conf to =x11. And made a file called 98-x11.conf to put the same line in.

I then restarted sddm in the terminal, and it is not loading. The computer is on, but all I have is a black screen with a flashing white underscore in the top left.

I would say I am pretty new to Linux so I have no idea what broke it.

If anyone could help, that would be great. Would preferably want to avoid reinstalling the OS

[Solved] Seeking The Right Linux

dryadsdad — Sun, 26 Jul 2026 14:25:04 GMT

My goal is to replace Windows with Linux. I’m at the stage where I wish to evaluate various Linux flavors to find one best for me.

I have been using Zorin for a while now to the point I have a feel for it so wished to add another version to my experience. I installed Kubuntu as a dual boot with Zorin. The setup left me with a good install of both. I have a personal loathing for passwords and won’t use them for my home office machines. I am as sure as I can be that I chose the direct login rather than enter a password when given the choice during the Kubuntu setup.

However, booting it up the next day presented me with a password demand. Since, AFAIK, I never established one I am unable to correctly enter it now. I’d like to know if there’s a *reasonable* workaround the OS’s password demand. By reasonable I mean for me a complete newbie in Linux not having used any flavor of Unix for several decades and that was BSD.

I’m OK re-installing Kubuntu since as of now it doesn’t mean any loss of data/work. What I don’t wish is to add a second Kubuntu or junk up the boot drive with orphaned files. I’d appreciate a suggestion of how to either use my current Kubuntu (bypass password) or how to remove it or how to cleanly run another Kubuntu setup that supplants the current install instead of adding another.

Please keep any suggestions at the novice or lower level since that’s where I am now. Thanks for any ideas.

NVIDIA driver issues++

scaru — Sat, 25 Jul 2026 20:15:34 GMT

Heyo, I'm all new to Kubuntu and Linux. I installed Kubuntu (minimal) on my pc just a few days ago, and it did not take long before I ran into some issues:
(1) My monitor will freeze or go blank, and I cannot seem to figure out what the problem is; thus, I end up doing a reboot every time. I think it might be because of my drivers

(2) I tried to follow some instructions on updating my drivers (because I currently use the Nouveau display driver,) but I ended up with a blank screen, and again I could not for the life of me fix it, nor return to the original driver. No reboot could sort it out, so I decided to reinstall Kubuntu.. I am now terrified of touching any of the drivers..

(3) Last thing, I cannot seem to properly install or launch the Waterfox web browser. I did install it by the use of the terminal, but I keep getting an error when I try to launch it..

I really want to like Kubuntu, because I can see how it's better than Windows OS, but it's tiring when you are new to it all and you don't know what youre doing..

Any help is most appreciated. Thanks

OS version: Kubuntu 26.04 LTS
KDE plasma version: 6.6.5
KDE frameworks version: 6.24.0
Qt version: 6.10.2
Kernel version: 7.0.0-28-generic (64-bit)
Graphics platform: Wayland

Processors: 12xAMD Ryzen 5 9600X 6-core
Memory: 16 GiB of RAM
Graphics processor 1: NVIDIA GeForce RTX 5060 Ti (discrete)
Graphics processor 2: AMD Ryzen 5 9600X 6-core (integrated)
Manufacturer: ASUS

Kubuntu is the only OS on my pc

unable to update from 24.04 lts to 26.04 lts

raphael75 — Thu, 23 Jul 2026 19:41:11 GMT

I tried following these two tutorials:
https://computingforgeeks.com/upgrad...4-04-to-26-04/
https://www.fosslinux.com/155927/how...2026-guide.htm

and both times when I get to the step to run do-release-upgrade I get this:

$ sudo do-release-upgrade -c
Checking for a new Ubuntu release
There is no development version of an LTS available.
To upgrade to the latest non-LTS development release
set Prompt=normal in /etc/update-manager/release-upgrades.

I've read that the 26.04 release came out months ago, so I'm not sure why it can't find it. My /etc/update-manager/release-upgrades is set to Prompt=lts

Why can't it find the lts release? Thank you.

Update keeps failing

MichaelEber — Thu, 23 Jul 2026 02:09:31 GMT

My wife's computer is out of date. I am offered to update to Kubuntu 26.4 which I want to do. But when I click on the box telling it to install the update I get a window that says the install failed. The failure text is blank. What the heck

Operating System: Kubuntu 25.10
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.17.0-41-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i3-N305
Memory: 8 GiB of RAM (7,5 GiB usable)
Graphics Processor: Intel® Graphics
Manufacturer: LENOVO
Product Name: 82XB
System Version: IdeaPad Slim 3 15IAN8

This is installed loclly on my wife's computer.

[SOLVED]Network speed seems limited to 20 mbit/s

Jolokp — Thu, 23 Jul 2026 01:36:57 GMT

Kubuntu version: 26.04
KDE Plasma version: 6.6.5

inxi output:

System:
Host: keanu Kernel: 7.0.0-28-generic arch: x86_64 bits: 64
Desktop: KDE Plasma v: 6.6.5 Distro: Kubuntu 26.04 LTS (Resolute Raccoon)
Machine:
Type: Desktop System: Micro-Star product: MS-7E26 v: 1.0
serial:
Mobo: Micro-Star model: B650 GAMING PLUS WIFI (MS-7E26) v: 1.0
serial: Firmware: UEFI vendor: American Megatrends LLC.
v: 1.F0 date: 07/26/2024
CPU:
Info: 8-core model: AMD Ryzen 7 7800X3D bits: 64 type: MT MCP cache:
L2: 8 MiB
Speed (MHz): avg: 4975 min/max: 426/5053 cores: 1: 4975 2: 4975 3: 4975
4: 4975 5: 4975 6: 4975 7: 4975 8: 4975 9: 4975 10: 4975 11: 4975 12: 4975
13: 4975 14: 4975 15: 4975 16: 4975
Graphics:
Device-1: NVIDIA AD104 [GeForce RTX 4070] driver: nvidia v: 595.71.05
Device-2: Advanced Micro Devices [AMD/ATI] Raphael driver: amdgpu
v: kernel
Device-3: Logitech HD Webcam C910 driver: snd-usb-audio,uvcvideo type: USB
Display: wayland server: X.org v: 1.21.1.22 with: Xwayland v: 24.1.10
compositor: kwin_wayland driver: gpu: nv_platform,nvidia,nvidia-nvswitch
resolution: 1: 3440x1440~144Hz 2: 1920x1080~60Hz
API: EGL v: 1.5 drivers: nvidia,radeonsi,swrast
platforms: gbm,wayland,x11,surfaceless,device
API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 595.71.05
renderer: NVIDIA GeForce RTX 4070/PCIe/SSE2
API: Vulkan v: 1.4.341 drivers: nvidia,radv,llvmpipe surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor gpu: nvidia-settings,nvidia-smi
wl: wayland-info x11: xdriinfo, xdpyinfo, xprop, xrandr
Audio:
Device-1: NVIDIA AD104 High Definition Audio driver: snd_hda_intel
Device-2: Advanced Micro Devices [AMD/ATI] Radeon High Definition Audio
driver: snd_hda_intel
Device-3: Advanced Micro Devices [AMD] Ryzen HD Audio
driver: snd_hda_intel
Device-4: Logitech HD Webcam C910 driver: snd-usb-audio,uvcvideo type: USB
API: ALSA v: k7.0.0-28-generic status: kernel-api
Server-1: PipeWire v: 1.6.2 status: active
Network:
Device-1: Realtek RTL8125 2.5GbE driver: r8169
IF: enp12s0 state: up speed: 1000 Mbps duplex: full mac: d8:43:ae:1f:4c:3a
Device-2: MEDIATEK MT7922 802.11ax PCI Express Wireless Network Adapter
driver: mt7921e
IF: wlp13s0 state: up mac: a8:3b:76:39:1c:6f
Bluetooth:
Device-1: MediaTek Wireless_Device driver: btusb type: USB
Report: hciconfig ID: hci0 state: up address: A8:3B:76:39:1C:70 bt-v: 5.2
Drives:
Local Storage: total: 10.92 TiB used: 151.3 GiB (1.4%)
ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 980 PRO 2TB size: 1.82 TiB
ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 990 PRO with Heatsink 4TB
size: 3.64 TiB
ID-3: /dev/sda vendor: Seagate model: ST6000AS0002-1N917X size: 5.46 TiB
Partition:
ID-1: / size: 3.58 TiB used: 151.3 GiB (4.1%) fs: ext4 dev: /dev/nvme1n1p2
ID-2: /boot/efi size: 299.4 MiB used: 8.1 MiB (2.7%) fs: vfat
dev: /dev/nvme1n1p1
Swap:
ID-1: swap-1 type: file size: 512 MiB used: 34.9 MiB (6.8%) file: /swapfile
Sensors:
System Temperatures: cpu: 60.4 C mobo: 44.0 C gpu: amdgpu temp: 42.0 C
Fan Speeds (rpm): N/A
Info:
Memory: total: 32 GiB note: est. available: 30.45 GiB used: 5.25 GiB (17.2%)
Processes: 417 Uptime: 22m Shell: Bash inxi: 3.3.40

Hello everyone!

I have just decided to move away from Windows 11 and installed Kubuntu on my PC. My previous experience with Ubuntu on other systems has been smooth, but now my network speed seems to be limited to about 20 mbit/s. Doesn't matter if I use a wired or wireless connection or how many processes try to use the connection, the speed seems to be artificially limited to 20 mbit/s. Speedtest.net shows the speeds I'm used to and my router doesn't seem to have a problem either. This wasn't a problem under Windows, so I'm guessing it's some sort of driver issue? I'm still pretty new to the inner workings of Linux, so excuse any rookie mistakes. I'd appreciate any help, thanks in advance.

Joris

[RESOLVED]Warzone2100 folder-Map

7Pawel — Wed, 22 Jul 2026 22:02:42 GMT

Zainstalowałem nowe Kubuntu i chciałem dodać dodatkowe mapy do Warzone2100 .Długo szukałem ale nie znalazłem.W innych dystrybucjach znajdowałem a tu nie.Proszę o podpowiedź gdzieznaleźć ten folder.Nie znam angielskiego i raczej nie poznam. Jestem samoukiem metodą prób i błędów.
W dalekiej przeszłości próbowałem instalować Kubuntu ale nie działał mi.Teraz odbyło się to bez problemu za pierwszym razem.To jest piękny system i wszystko "śmiga''.Do wczoraj grałem na Manjaro ale po aktualizacji coś się popsuło.
Proszę wybaczyć jeśli nie tu piszę ale szukałem coś WZ2100 i nie znalazłem.

Translation:

I’ve installed a fresh copy of Kubuntu and wanted to add extra maps to Warzone 2100. I searched for a long time but couldn't find them; I used to find them easily on other distributions, but not here. Could you please tell me where to find the relevant folder? I don't speak English—and likely never will—as I’m entirely self-taught through trial and error.
I tried installing Kubuntu a long time ago, but it didn't work for me back then. This time, however, it installed perfectly on the first attempt. It’s a beautiful system, and everything runs smoothly. I had been playing on Manjaro until yesterday, but something broke after an update.
Please forgive me if I’m posting in the wrong place, but I searched for information on WZ2100 and couldn't find anything.