Created attachment 104916 [details] Window title greyscale antialiasing - screenshot zoom After switching on RGB antialiasing inside fonts settings it seems, that window title is still antialiased using greyscale method, not RGB.
Re-assigning to Breeze window decoration which paints the label
Hi, Thanks for reporting Two questions: - does it work as expected with other window decorations ? - any idea how to setup RGB font antialiasing in Qt ? (I would have thought it automatic, but maybe am missing something.
It seems that only window title has got problem with rgb antialiasing. RGB is not enabled by default in Neon distro. To enable it go to font settings and change antialiasing from system settings to enabled, then choose settings and change subpixel to rgb there.
So double checking here. It seems the problem is also present for any other window decoration, (e.g. oxygen, plastique, which is Aurorae). So upstreaming to kwin.
@Hugo: could it be that antialising is just not enabled on the QPainter KWin passes to the decoration? What could be a nice test is to compare how it looks in the kcm.
Hi Martin There is antialiasing Just not the right one I do not know how to change/test anti-aliasing type in qt .
Me neither
https://bugreports.qt.io/browse/QTBUG-22334
Thanks for the explanation. Just looked at the code: that check is still there and as I don't see a way to fake decos to be an internal widget I unfortunately have to conclude: upstream issue.
*** Bug 390183 has been marked as a duplicate of this bug. ***