If you click on Logout, Shutdown or Restart, the confirmation layer appears, then you start moving the mouse pointer inside that layer, the pointer becomes laggy and slow like it's dragged by something, and at random time the pointer arrow becomes bigger. Operating System: Manjaro Linux KDE Plasma Version: 6.1.0 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.1 Kernel Version: 6.9.5-1-MANJARO (64-bit) Graphics Platform: Wayland
It seems the pointer becoming big is due to that shake cursor effect, but the slowness is always present in that confirmation layer, the previous one didn't have this problem.
Maybe the shader that drives this became slower somehow? I cannot reproduce the issue on my system which uses 225% scale on a 4k screen, which is generally graphically slow enough to trigger issues like the one you're reporting. Can you paste the output of `env`?
(In reply to Nate Graham from comment #2) > Can you paste the output of `env`? This is the result from the laptop with lowest specs (100% scale), where the slowness is more visible: CALIBRE_USE_SYSTEM_THEME=1 CASROOT=/usr COLORFGBG=15;0 COLORTERM=truecolor CSF_DrawPluginDefaults=/usr/share/opencascade/resources/DrawResources CSF_EXCEPTION_PROMPT=1 CSF_IGESDefaults=/usr/share/opencascade/resources/XSTEPResource CSF_LANGUAGE=us CSF_MDTVTexturesDirectory=/usr/share/opencascade/resources/Textures CSF_MIGRATION_TYPES=/usr/share/opencascade/resources/StdResource/MigrationSheet.txt CSF_OCCTResourcePath=/usr/share/opencascade/resources CSF_PluginDefaults=/usr/share/opencascade/resources/StdResource CSF_SHMessage=/usr/share/opencascade/resources/SHMessage CSF_STEPDefaults=/usr/share/opencascade/resources/XSTEPResource CSF_ShadersDirectory=/usr/share/opencascade/resources/Shaders CSF_StandardDefaults=/usr/share/opencascade/resources/StdResource CSF_StandardLiteDefaults=/usr/share/opencascade/resources/StdResource CSF_TObjDefaults=/usr/share/opencascade/resources/StdResource CSF_TObjMessage=/usr/share/opencascade/resources/TObj CSF_XCAFDefaults=/usr/share/opencascade/resources/StdResource CSF_XSMessage=/usr/share/opencascade/resources/XSMessage CSF_XmlOcafResource=/usr/share/opencascade/resources/XmlOcafResource DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1007/bus DEBUGINFOD_CACHE_PATH=/var/tmp/.debuginfod_client/ DEBUGINFOD_URLS=https://debuginfod.archlinux.org DESKTOP_SESSION=plasmawayland DISPLAY=:1 DOTNET_CLI_TELEMETRY_OPTOUT=1 DRAWDEFAULT=/usr/share/opencascade/resources/DrawResources/DrawDefault DRAWHOME=/usr/share/opencascade/resources/DrawResources FREETYPE_PROPERTIES=truetype:interpreter-version=40 GTK2_RC_FILES=/etc/gtk-2.0/gtkrc:/home/mohamed/.gtkrc-2.0:/home/mohamed/.config/gtkrc-2.0 GTK_RC_FILES=/etc/gtk/gtkrc:/home/mohamed/.gtkrc:/home/mohamed/.config/gtkrc HG=/usr/bin/hg HOME=/home/mohamed ICEAUTHORITY=/run/user/1007/iceauth_cnRINN INVOCATION_ID=2339e9b7502e4d6e8d2f4fee28594d67 JOURNAL_STREAM=9:9680 KDE_APPLICATIONS_AS_SCOPE=1 KDE_FULL_SESSION=true KDE_SESSION_UID=1007 KDE_SESSION_VERSION=6 KONSOLE_DBUS_SERVICE=:1.74 KONSOLE_DBUS_SESSION=/Sessions/2 KONSOLE_DBUS_WINDOW=/Windows/1 KONSOLE_VERSION=240501 LANG=en_US.UTF-8 LANGUAGE= LC_ADDRESS=en_US.UTF-8 LC_IDENTIFICATION=en_US.UTF-8 LC_MEASUREMENT=en_US.UTF-8 LC_MONETARY=en_US.UTF-8 LC_NAME=en_US.UTF-8 LC_NUMERIC=en_US.UTF-8 LC_PAPER=en_US.UTF-8 LC_TELEPHONE=en_US.UTF-8 LC_TIME=en_US.UTF-8 LOGNAME=mohamed MAIL=/var/spool/mail/mohamed MANAGERPID=1252 MEMORY_PRESSURE_WATCH=/sys/fs/cgroup/user.slice/user-1007.slice/user@1007.service/session.slice/plasma-plasmashell.service/memory.pressure MEMORY_PRESSURE_WRITE=c29tZSAyMDAwMDAgMjAwMDAwMAA= MMGT_CLEAR=1 MOTD_SHOWN=pam PAM_KWALLET5_LOGIN=/run/user/1007/kwallet5.socket PATH=/home/mohamed/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl PROFILEHOME= PWD=/home/mohamed QT_AUTO_SCREEN_SCALE_FACTOR=0 QT_LINUX_ACCESSIBILITY_ALWAYS_ON=1 QT_WAYLAND_RECONNECT=1 SESSION_MANAGER=local/manjaro-med:@/tmp/.ICE-unix/1446,unix/manjaro-med:/tmp/.ICE-unix/1446 SHELL=/usr/bin/bash SHELL_SESSION_ID=e4e431336fdc476195e744e51e2661a4 SYSTEMD_EXEC_PID=1469 TERM=xterm-256color USER=mohamed WAYLAND_DISPLAY=wayland-0 WINDOWID=3 XAUTHORITY=/run/user/1007/xauth_yMIQVC XDG_ACTIVATION_TOKEN=kwin-7 XDG_CONFIG_DIRS=/home/mohamed/.config/kdedefaults:/etc/xdg:/usr/share/manjaro-kde-settings/xdg XDG_CURRENT_DESKTOP=KDE XDG_MENU_PREFIX=plasma- XDG_RUNTIME_DIR=/run/user/1007 XDG_SEAT=seat0 XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0 XDG_SESSION_CLASS=user XDG_SESSION_DESKTOP=KDE XDG_SESSION_ID=2 XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session1 XDG_SESSION_TYPE=wayland XDG_VTNR=1 XKB_DEFAULT_LAYOUT=fr XKB_DEFAULT_MODEL=pc105 _JAVA_OPTIONS=-Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dswing.defaultlaf=javax.swing.plaf.nimbus.NimbusLookAndFeel -Dswing.crossplatformlaf=javax.swing.plaf.nimbus.NimbusLookAndFeel SHLVL=1 OLDPWD=/home/mohamed LESS_TERMCAP_mb= LESS_TERMCAP_md= LESS_TERMCAP_me= LESS_TERMCAP_se= LESS_TERMCAP_so= LESS_TERMCAP_ue= LESS_TERMCAP_us= LESS=-R LS_OPTIONS=--color=auto LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=00:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.7z=01;31:*.ace=01;31:*.alz=01;31:*.apk=01;31:*.arc=01;31:*.arj=01;31:*.bz=01;31:*.bz2=01;31:*.cab=01;31:*.cpio=01;31:*.crate=01;31:*.deb=01;31:*.drpm=01;31:*.dwm=01;31:*.dz=01;31:*.ear=01;31:*.egg=01;31:*.esd=01;31:*.gz=01;31:*.jar=01;31:*.lha=01;31:*.lrz=01;31:*.lz=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.lzo=01;31:*.pyz=01;31:*.rar=01;31:*.rpm=01;31:*.rz=01;31:*.sar=01;31:*.swm=01;31:*.t7z=01;31:*.tar=01;31:*.taz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tgz=01;31:*.tlz=01;31:*.txz=01;31:*.tz=01;31:*.tzo=01;31:*.tzst=01;31:*.udeb=01;31:*.war=01;31:*.whl=01;31:*.wim=01;31:*.xz=01;31:*.z=01;31:*.zip=01;31:*.zoo=01;31:*.zst=01;31:*.avif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:*~=00;90:*#=00;90:*.bak=00;90:*.crdownload=00;90:*.dpkg-dist=00;90:*.dpkg-new=00;90:*.dpkg-old=00;90:*.dpkg-tmp=00;90:*.old=00;90:*.orig=00;90:*.part=00;90:*.rej=00;90:*.rpmnew=00;90:*.rpmorig=00;90:*.rpmsave=00;90:*.swp=00;90:*.tmp=00;90:*.ucf-dist=00;90:*.ucf-new=00;90:*.ucf-old=00;90: P9K_SSH=0 _P9K_SSH_TTY=/dev/pts/3 P9K_TTY=old _P9K_TTY=/dev/pts/3 _=/usr/bin/env
After trying many things, it seems the culprit is that blur effect, disabling it seems to fix the slowness and the mouse cursor regains its smoothness, but I get a transparent confirmation layer which is not looking good. Is there any way to apply a simple solid color to that layer instead of blurring the whole screen?
Thanks. Indeed it is the blur effect. I've also thought that it was unnecessary here since you can barely see the blurred content anyway. FWIW I've found a way to reproduce this myself: plug in a second monitor. Then I get the same lag. Regardless, moving to KWin for now to debug why the blur here is slow.
*** Bug 489456 has been marked as a duplicate of this bug. ***
hmm, the cursor should be independent from compositing performance, and on my PC it still is. Could you check if this also happens with KWIN_DRM_DISABLE_TRIPLE_BUFFERING=1 set? I suspect this might be the same as bug 488843
(In reply to Zamundaaa from comment #7) > hmm, the cursor should be independent from compositing performance, and on > my PC it still is. > Could you check if this also happens with > KWIN_DRM_DISABLE_TRIPLE_BUFFERING=1 set? I suspect this might be the same as > bug 488843 Even if I set KWIN_DRM_DISABLE_TRIPLE_BUFFERING=1 in "/etc/environment" then reboot, the lagging is still happening. If disable Blur effect, the mouse's movements immediately become fast.
I'm somewhat at a loss to explain how, but https://invent.kde.org/plasma/kwin/-/commit/b0a5918db9e281e8b680317eb35a7d20084e10c6 has fixed this for me.