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New MemberQuesta-ModelSim UI scaling problems in Linux
Hello
Has anybody been able to solve the issue of UI of Questa not scaling correctly on linux with wayland?
I am using Ubuntu 26.04 with wayland and UI is just tiny, icons, are so small i cannot read any text.
When opening a new project, file explorer is also tiny.
Fonts i could change in the config file but icons, menus and everything else is just extremely small.
Problem is even worse on high resolution displays.
Regards, Haris
1 Reply
ZiYingE_AlteraOccasional Contributor
Hi haris,
This appears to be GUI scaling under Wayland, particularly with Qt-based applications on high-DPI displays.
Regarding the font changes, were those made through the ~/.modelsim settings file? May I also check which Questa version you are using?
As a workaround, could you try launching Questa with the following commands:
export QT_SCALE_FACTOR=2
export QT_AUTO_SCREEN_SCALE_FACTOR=0
vsim
QT_SCALE_FACTOR=2 tells Qt to scale the application UI to 200%, which can help enlarge icons, menus, dialogs, and other GUI elements.
QT_AUTO_SCREEN_SCALE_FACTOR=0 disables Qt's automatic scaling detection and forces it to use the scale factor specified above.
You may need to adjust QT_SCALE_FACTOR (for example, 1.5, 2, or 2.5) depending on your display resolution and desktop scaling settings.
Could you please give this workaround a try and let me know whether it improves the GUI scaling on your system.
Regards,
ZiYingE_Altera
