Why Qt 5.x version software font render has not same effect as GTK+ or Qt 4.x software?(almost all linux distro)

[Gabriel_Alpha]

when font size big than 11,
this is gnome-terminal

This is smplayer, using Qt 4.x

This is vlc, using system's Qt 5.x

qbittorent

Fedora is same.

[SGaist]

Hi,

Likely because the plugin implementing the GTK+ theme has changed between Qt4 and the latest Qt5.

[Gabriel_Alpha]

@SGaist is it a bug?

[SGaist]

You have to give more explanation about what exactly is different.

IIRC, Qt 4 is on GTK2 while Qt 5 currently backend is of GTK3. Therefore, what version of Qt are you running ? Can you compare the same application built against these two version of Qt ?

[Gabriel_Alpha]

Qt creator, install from official release file .run , GUI font render same as GTK+ application, but install from apt source, font is ugly!

[SGaist]

Then you should check what is happening with your distribution maintainers.

[Gabriel_Alpha]

@SGaist all linux distro has this problem