Linux Xephyr deadlock / freeze
Xephyr suddenly freezes on you, after some random amount of 10 minutes? You might be victim of Nvidia binary crap hijacking your libGL, replacing it with a dubious one. Make sure there is no nividia
in the output of ldd =Xephyr
and check the ls -l /usr/lib*/libGL.so*
output. The rouge nvidia library was named libGL.so.290.10
on my system