P4
A DESCRIPTION OF THE PROBLEM :
We'd like to inform you that the X11 window manager in kwin_wayland compositor will no longer re-parent windows in Plasma 6.5. Note that kwin_x11 will still be a re-parenting window manager.
It looks like AWT has a hardcoded list of non-reparenting window managers. If isNonReparentingWM() returns a wrong value, it can result in windows not being rendered as expected, which we currently observe in the dev branch of kwin.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Build latest kwin
- Run jdownloader
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Jdownloader is shown as expected
ACTUAL -
Jdownloader has blank window contents because https://github.com/openjdk/jdk/blob/68ee06f0c9ec420cb1a60e0b361971372b18b82b/src/java.desktop/unix/classes/sun/awt/X11/XDecoratedPeer.java#L812-L817 fails with kwin now.
We'd like to inform you that the X11 window manager in kwin_wayland compositor will no longer re-parent windows in Plasma 6.5. Note that kwin_x11 will still be a re-parenting window manager.
It looks like AWT has a hardcoded list of non-reparenting window managers. If isNonReparentingWM() returns a wrong value, it can result in windows not being rendered as expected, which we currently observe in the dev branch of kwin.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Build latest kwin
- Run jdownloader
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Jdownloader is shown as expected
ACTUAL -
Jdownloader has blank window contents because https://github.com/openjdk/jdk/blob/68ee06f0c9ec420cb1a60e0b361971372b18b82b/src/java.desktop/unix/classes/sun/awt/X11/XDecoratedPeer.java#L812-L817 fails with kwin now.