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_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

[SOLVED]cursor and windows dragging artifacts. kde wayland

i dont remember when exactly it started but at least 2 months, it just started showing cursor artifacts, it doesnt happen on windows, x11plasma-session or sway, only plasma-wayland.
no problems in fullscrean games
https://imgur.com/a/hNa1iCM
dragging windows show similar effects but artifacts longer lines with colors of website, i assume its kwin?
i tried to downgrade kwin but when i do it session wont start, i also tried do downgrade kwin with i believe everything plasma wayalnd related plasma-desktop kwin kwayland kdeplasma-addons but i still coudnt login.

[SOLVED] setting scale in kde settings to 100 resolve the issue

Last edited by _ADaMA$_ (2025-12-14 14:03:32)

_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

logs show errors that arent serious probably

$ journalctl -f /usr/bin/kwin_wayland
kwin_wayland[1840]: No backend specified, automatically choosing drm
kwin_wayland[1840]: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Unable to open /proc/1840/root")
kwin_wayland[1840]: Could not find slot Krunner1Adaptor::Teardown
kwin_wayland[1840]: QDBusConnection: couldn't handle call to Teardown, no slot matched

_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

ive made a new fresh arch install and doesnt have this issue, its probably some conflicting packages

_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

i created new user and there wasnt any artifacts, then i tried to set plasmas default settings by

for j in plasma*; do mv -- "$j" "${j%}.bak"; done

it didnt help, im out of ideas what could be the cause

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,085

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

Do you currently still have that problem on any system?
Did you maybe export KWIN_FORCE_SW_CURSOR on that system? (check printenv)

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_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

Do you currently still have that problem on any system?

yes, on my main user only.

Did you maybe export KWIN_FORCE_SW_CURSOR on that system? (check printenv)

no, i checked with

printenv | grep KWIN_FORCE_SW_CURSOR

_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

few other things i checked.
no suspicious user services enabled.
deleting ~/.cache then reboot.
renamed ~/.var temporarily then reboot.
resetting all flatpak permissions.

_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

i started plasma-kwin_wayland.service fron tty and artifacts appeared.
printenv shows

LD_LIBRARY_PATH=:/opt/rocm/hip/lib

but i deleted rocm long ago, to check if its the issue i logged out then from tty

$ unset LD_LIBRARY_PATH
systemctl --user start plasma-kwin_wayland

it didnt help there was still artifacts, does unsetting it this way affects kwin?

_ADaMA$_

Member

Registered: 2024-08-25

Posts: 25

Re: [SOLVED]cursor and windows dragging artifacts. kde wayland

[solved] it was because of scale set to 115% in kde settings.