Created attachment 48440 [details] small demo application Version: unspecified (using Devel) OS: Linux This is a remaining of Bug 183263. Sometimes a window which is resized frequently is put into "slow resize mode", where kwin would resize the window only with ~2fps. Once a window is in this state, it will resize slow forever. Recently I've found a way to reliable reproduce this issue. If a window fails to redraw itself once in time, kwin will resize it slow forwever, even it it paints quick on further iterations. I attached a small QT based demo application which: - Paints an analog clock - On the 50th paint event, it blocks for 10s - this triggers "slow resize mode" - After the 50th paint event, resizing is still slow, although re-paint is fast again Reproducible: Always
Took me quite a while to find a way to reproduce this behaviour and even write an testcase for it, and now nobody cares :/
sorry - see reply on bug #183263 unfortunately the mail was not replied and i don't have the guts to "just merge" - i'm a wiener, i know :-(
SVN commit 1175748 by luebking: fix pending XSYNC requests, bugs partially closed due to suggested relation by the reporters please re-open them if this does not fix it BUG: 178269 BUG: 183263 BUG: 241094 BUG: 243094 M +1 -0 events.cpp M +0 -1 geometry.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=1175748