[solved] Weird Qt4 text rendering corruption.

Message

Targen · Post by **Targen** » Thu Apr 09, 2009 7:44 am

I'm using, as far as I can tell, Qt 4.5.0. The screenshots speak for themselves. This only affects apps linked to Qt4; Qt3 apps work fine.

Any ideas? I've already tried simple stuff such as re-emerging qt-gui and then the affected apps. Not sure how to carry on.

Edit: indeed it was the antialiasing. It took me a while to fix it because I only thought of changing the system-wide fontconfig settings at first. Also had to change the GNOME settings. Thanks. Don't think it had much to do with nvidia drivers.

MasterX · Post by **MasterX** » Thu Apr 09, 2009 8:59 am

If you have upgraded qt from an earlier version ,i.e. 4.4 to 4.5 then you need to remerge kdelibs. Maybe there are some other kde programs that you need to reemerge, but start with kdelibs and hope for the best

Gusar · Post by **Gusar** » Thu Apr 09, 2009 10:55 am

This is independent of kdelibs, it's a pure qt issue. The issue is with vertical anti-aliasing (vrgb or vbgr). Configure your fonts to use rgb or bgr anti-aliasing. This is not a solution though, just a workaround. Especially, because rgb/bgr anti-aliased fonts looks differently in qt4 than they do everywhere else.

RealNC · Post by **RealNC** » Fri Apr 10, 2009 6:20 am

This is a known bug with NVidia drivers. If you're on NVidia, try to update the drivers.