Created attachment 111761 [details] plasma picture with bad font rendering in dual screen setup, where one monitor is hidpi and the other one is standard dpi, on hidpi monitor fonts and icons are rendered pixelated. please check attached picture taken with phone. only titlebar font is displayed ok, everything else is pixelated: - all fonts (check titlebar of kate and text written in kate for comparison) - text in konsole (with default font) - text in all menu bars (file, edit, etc.) - icons in dolphin settings, toolbar, etc. this issue is linked to Bug 390639 where only icon in titlebar was fixed, but fonts and other icons are still bad. tested on kubuntu 18.04 daily with latest updates applied. same situation existed in neon when i opened bug 390639 if font settings are important, anti-aliasing is set to "system settings"
what i've noticed is that when new user account is created and default monitor arrangement is used, the pixelation doesnt happen. once i switch monitor left/right i systemsettings, the pixelation starts to happen.
ok, just tested it, the behavior is like this in two monitor setup, where one monitor is standard dpi and the other one is hidpi, the order in kscreen matters. - when left (1st) monitor is standard dpi, picture on hidpi monitor is pixelated - when left (1st) monitor is hidpi, the picture on hidpi monitor is ok described case fixes pixelated text in case applications are running natively on wayland (tested on dolphin, kate, konsole) it doesn't work with applications which are running through xorg (firefox, intellij as snap, intellij as downloaded app) not sure about falkon though: configuration menu is not pixelated, but tab titles are.
Please paste output of "env" in a terminal
GS_LIB=/home/mspehar/.fonts KDE_FULL_SESSION=true 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=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.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:*.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: LC_MEASUREMENT=de_AT.UTF-8 LESSCLOSE=/usr/bin/lesspipe %s %s LC_PAPER=de_AT.UTF-8 LC_MONETARY=de_AT.UTF-8 LANG=en_US.UTF-8 PROFILEHOME= DISPLAY=:1 SHELL_SESSION_ID=733eca4e85234415a478f47867eda9f7 COLORTERM=truecolor XDG_VTNR=2 PAM_KWALLET5_LOGIN=/run/user/1000/kwallet5.socket XKB_DEFAULT_LAYOUT=hr LC_NAME=de_AT.UTF-8 XDG_SESSION_ID=3 USER=mspehar DESKTOP_SESSION=plasmawayland TEXTDOMAINDIR=/usr/share/locale/ WAYLAND_DISPLAY=wayland-0 PWD=/home/mspehar HOME=/home/mspehar TEXTDOMAIN=im-config XDG_SESSION_TYPE=wayland XDG_DATA_DIRS=/usr/local/share:/usr/share:/var/lib/snapd/desktop KONSOLE_DBUS_SESSION=/Sessions/1 XDG_SESSION_DESKTOP=KDE LC_ADDRESS=de_AT.UTF-8 LC_NUMERIC=de_AT.UTF-8 KONSOLE_DBUS_WINDOW=/Windows/1 QT_WAYLAND_FORCE_DPI=96 TERM=xterm-256color SHELL=/bin/bash KONSOLE_DBUS_SERVICE=:1.49 XDG_SESSION_CLASS=user XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0 XKB_DEFAULT_MODEL=pc105 IM_CONFIG_PHASE=2 XCURSOR_THEME=breeze_cursors XDG_CURRENT_DESKTOP=KDE KONSOLE_PROFILE_NAME=default QT_WAYLAND_DISABLE_WINDOWDECORATION=1 XDG_SEAT=seat0 SHLVL=1 COLORFGBG=15;0 LANGUAGE= WINDOWID=1 LC_TELEPHONE=de_AT.UTF-8 PLASMA_USE_QT_SCALING=1 QT_QPA_PLATFORM=wayland LOGNAME=mspehar DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-FtfFLAj75h,guid=ea47b744f9cd31b1bdd5192b5ac26fb0 XDG_RUNTIME_DIR=/run/user/1000 PAM_KWALLET_LOGIN=/run/user/1000/kwallet.socket XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session1 QT_AUTO_SCREEN_SCALE_FACTOR=0 PATH=/home/mspehar/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin LC_IDENTIFICATION=de_AT.UTF-8 KDE_SESSION_UID=1000 KDE_SESSION_VERSION=5 SESSION_MANAGER=local/r7:@/tmp/.ICE-unix/1712,unix/r7:/tmp/.ICE-unix/1712 LESSOPEN=| /usr/bin/lesspipe %s LC_TIME=de_AT.UTF-8 _=/usr/bin/env
Requested INFO added
What Qt version is this?
"about system" says qt: 5.9.4 plasma version: 5.12.4 frameworks: 5.44
windows knowing what monitor they're on was in Qt5.10 Please repoen if you still have this problem with a newer Qt.
Installed archlinux with KDE. Same behaviour.
That is, now qt 5.10.1 is installed and it is still doesnt work
Please provide output of qdbus org.kde.KWin /KWin supportInformation
at the following link: https://paste.kde.org/pcvzovpsh
Since latest update on Archlinux, the content of e.g. Kate is now properly rendered. The problem remains with menus (e.g. when i click 'edit' in kate, text in dropdown menu is still pixelated)
Please can you confirm if this is still an issue with up-to-date plasma/kwin
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!