Screen Resolution Problems with 3.25.0.0

[BraemarStan]

I've been using 3.24.0.0 without too many issues on my 8 core Ryzen based system running Ubuntu Mate 20.04. I have a Samsung 4k monitor and an RX580 GPU. I'm running with 3840 x 2160 screen resolution and the HiDPI setting on so that applications are legible and not microscopic.

3.24.0.0 displayed OK albeit that the icons were initially a bit larger than I like.

Today I upgraded to 3.25.0.0 and BOOM! the graphics are atrocious. The spash screen is a low resolution bitmap and once QCAD opens everything is monstrously large. Even setting all icon size settings to their minimum leaves QCAD looking like it was designed for young children with poor eyesight.

Loading drawings is equally disastrous with their contents looking like bitmaps rather than vector entities. I've also noticed that the close tab X for a drawing is only partially displayed - not a full X.

I've switched HiDPI off and on with no change.

This can't be how it 's supposed to be. Surely.

[andrew]

If you are comfortable using a text editor, please open the file "qcad" of your QCAD installation and change the line

Code: Select all

QT_AUTO_SCREEN_SCALE_FACTOR=1 LD_LIBRARY_PATH="$DIR" "$binary" "$@"

to:

Code: Select all

QT_AUTO_SCREEN_SCALE_FACTOR=0 LD_LIBRARY_PATH="$DIR" "$binary" "$@"

I can imagine that the Qt auto detection fails there for some reason.

[andrew]

You could also try the alternative package bundled with Qt 5.14 (see download link).

[BraemarStan]

Thanks Andrew.

Your QCAD edit suggestion worked perfectly.