xserver version : $ apt-show-versions xserver-xorg-core xserver-xorg-core/sid uptodate 2:1.3.0.0.dfsg-5
installed your libx11-6, removed libxcb-*, restarted X and it works like a charm :) So the bug is actually related to libxcb. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

