Qt Creator running on Debian 12 HiDPI

2023-11-08 22:40:11

In my particular case, I’m running Debian 12 and KDE on Wayland, and after installing Qt Creator, it was blurry, although QT has native support for Wayland.

I had to do some tweaking to run it with Wayland support and 125% scaling.

Qt Creator uses qt6, and the Wayland package for qt6 is missing, so I had to install it. qt6-wayland

I also had to add some environment variables.

QT_QPA_PLATFORM=wayland QT_SCALE_FACTOR=1.25

After editing the .desktop file it looks like this

[Desktop Entry] 
Categories=Development;IDE;Qt; 
Comment[en_US]= 
Comment= 
Exec=env QT_QPA_PLATFORM=wayland QT_SCALE_FACTOR=1.25 QT_SCALE_FACTOR_ROUNDING_POLICY=PassThrough qtcreator %F 
GenericName[en_US]=C++ IDE for developing Qt applications 
GenericName=C++ IDE for developing Qt applications 
Icon=QtProject-qtcreator 
MimeType=text/x-c++src;text/x-c++hdr;application/x-designer; 
Name[en_US]=Qt Creator 
Name=Qt Creator 
Path= 
StartupNotify=true 
StartupWMClass=qtcreator 
Terminal=false 
TerminalOptions= 
Type=Application 
X-KDE-StartupNotify=true 
X-KDE-SubstituteUID=false 
X-KDE-Username=