Version: (using KDE 4.4.0)
Installed from: openSUSE RPMs
Kwin waits Alt key release and switch windows after this. This is normal behaviour with enabled window list but absolutely bad with disabled. In 4.3 series Kwin switched windows immediately after Tab key release not Alt key.
The variant in 4.3 was a workaround for unreasonable focus policies. This implies that it was not possible to switch to all windows. There were windows which were unreachable. As well in 4.3 alt+tab did not enter the mode. So holding alt is useless. Each tab press event was like pressing once alt+tab.
I see that this is a regression for you, but I do not know if I can enable this "legacy" mode, although it is still available in case that an unreasonable focus policy is used. If at all, there will be a hidden option as we really received quite some bug reports about the broken state before.
Changing to whishlist as it is a change to the now intended behaviour.
SVN commit 1186871 by luebking:
raise alt+tab selected window w/o compositing (requires highlight windows option to be checked)
unlink composited window highlighting from the tabbox
-> results in semi-legacy behaviour w/o activating the selected window
M +5 -2 effects/highlightwindow/highlightwindow.cpp
M +82 -42 kcmkwin/kwintabbox/main.ui
M +26 -21 layers.cpp
M +3 -1 tabbox.h
M +60 -14 tabbox/tabboxhandler.cpp
M +13 -1 tabbox/tabboxhandler.h
M +2 -1 workspace.h
WebSVN link: http://websvn.kde.org/?view=rev&revision=1186871