Arch Linux

sincomil

Member

Registered: 2018-02-13

Posts: 118

[SOLVED][KDE Plasma] 6.3.x huge amount of regressions

After upgrading to 6.3.x found my Plasma Desktop acting weird, specifically in Wayland session:

• Windows toggling its focus between KRunner(Desktop canvas) and active window on each mouse click on that window if window belongs to non-QT application and all QT application windows are minimized or none of them running.

• All None-QT applications are no longer displayed on taskbar also have no previews in Virtual Desktops Widget on taskbar

• System Settings => Display & Monitor configuration section is broken and has only basic settings as: screen resolution and orientation. All other options such as:

  • Enabling/Disabling Other Monitors, 

  • Refresh Rate and HDR Settings, 

  • Monitor identification button, 

  • and so on

  all are disappeared look at  screenshot

Last edited by sincomil (2025-04-04 13:13:16)

arojas

Developer

From: Spain

Registered: 2011-10-09

Posts: 2,187

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

That screenshot is not from Plasma 6.3. How did you install Plasma?

sincomil

Member

Registered: 2018-02-13

Posts: 118

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

That screenshot is not from Plasma 6.3. How did you install Plasma?

It is plasma 6.3.x Screenshot of System Settings window was made with Flameshot
Plasma installed with

 pacman -S plasma-desktop 

long time ago. Upgraded from 6.2.x to 6.3.x on 14/03/2025
Screenshot of from pacman.log

OFFTOPIC: is there any way to put images under spoiler button or preview thumbnails or something similar? put images as urls to IMGur links

Last edited by sincomil (2025-04-04 12:16:10)

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 12,700

Website

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

Ideally don't post pictures of text, post the actual text and use code tags. If you do need to post images, use hyperlinks and/or create your own thumbnails.

https://wiki.archlinux.org/title/Genera … s_and_code

---

Sakura:-
Mobo: MSI MAG X570S TORPEDO MAX // Processor: AMD Ryzen 9 5950X @4.9GHz // GFX: AMD Radeon RX 5700 XT // RAM: 32GB (4x 8GB) Corsair DDR4 (@ 3000MHz) // Storage: 1x 3TB HDD, 6x 1TB SSD, 2x 120GB SSD, 1x 275GB M2 SSD

Making lemonade from lemons since 2015.

sincomil

Member

Registered: 2018-02-13

Posts: 118

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

Ideally don't post pictures of text, post the actual text and use code tags. If you do need to post images, use hyperlinks and/or create your own thumbnails.

https://wiki.archlinux.org/title/Genera … s_and_code

Already put my images as links, thank you, you're late

arojas

Developer

From: Spain

Registered: 2011-10-09

Posts: 2,187

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

It is plasma 6.3.x Screenshot of System Settings window was made with Flameshot
Plasma installed with

 pacman -S plasma-desktop 

long time ago. Upgraded from 6.2.x to 6.3.x on 14/03/2025

Then you are not on Wayland. Neither the Compositor nor the Gamma KCMs are enabled on Wayland.

sincomil

Member

Registered: 2018-02-13

Posts: 118

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

It is plasma 6.3.x Screenshot of System Settings window was made with Flameshot
Plasma installed with

 pacman -S plasma-desktop 

long time ago. Upgraded from 6.2.x to 6.3.x on 14/03/2025

Then you are not on Wayland. Neither the Compositor nor the Gamma KCMs are enabled on Wayland.

I'm sure this is Wayland session, and here is a proof
And my question is exactly about that as you see. I'm pointing to that elements of that window was broken after the upgrade from 6.2.x to 6.3.x

And you can check, this is Xorg session, same window contents

Last edited by sincomil (2025-04-04 12:40:40)

arojas

Developer

From: Spain

Registered: 2011-10-09

Posts: 2,187

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

Well, your systemsettings is certainly running on xcb. Possibly plasmashell too, which would explain all your issues. What's the output of `env | grep QT` ?

sincomil

Member

Registered: 2018-02-13

Posts: 118

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

Well, your systemsettings is certainly running on xcb. Possibly plasmashell too, which would explain all your issues. What's the output of `env | grep QT` ?

it seams you're right, kind of, because KDE Info Center says it is running under X11

$ env | grep QT
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_WAYLAND_RECONNECT=1

sincomil

Member

Registered: 2018-02-13

Posts: 118

Re: [SOLVED][KDE Plasma] 6.3.x huge amount of regressions

xcb

I quoted "KEYWORD" of you that triggered my brain to recall that exactly after upgrade to 6.3.x I put this in my ~/.config/emptty - config file to fix scrolling lags in LibreOffice:

here is snippet from it:

QT_QPA_PLATFORM=xcb
export QT_QPA_PLATFORM

And after removing it all become as it should, thank you, Dude!

$ env | grep QT
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_WAYLAND_RECONNECT=1

But why it is not showed up in this output?, enigma...

Last edited by sincomil (2025-04-04 13:15:42)