Since version 26782 of xfwm4 when using enable display compositing the screen sometimes is not immediately cleared from a previous window. e.g. After login the panels autohide but are only partially cleared, when using gxine and switching from full screen to a smaller screen parts of the previous screen are not immediately cleared. I am using Debian Sid on a laptop with Intel chip 82852/855GM Integrated Graphics, kernel 2.6.24-1-686. I guess it's caused by your new 'asynchronous frames update'! Best regards, Jos van Wolput
Bug fixed in svn revision 26815!
fixed in svn revision 26815