I know it is still beta, but in ubuntu 14.04 I cannot start a nested server such as xephyr or xgl on top of a x main server. Xephyr: no errors, Xgl: segfault kernel. Where to look? gd -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.x.org/archives/xorg/attachments/20140327/24fbf9ec/attachment.html>