URI: 

       select for SubstructureRedirectMask as well - slock - simple X display locker utility
  HTML git clone git://git.suckless.org/slock
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit 0b1362846242d510c4fd160b7e6579278213a544
   DIR parent 7a217cb7c4f1a7439b76f5fb839035d7021eb7ff
  HTML Author: anselm@garbe.us <unknown>
       Date:   Thu,  9 Feb 2012 20:56:34 +0100
       
       select for SubstructureRedirectMask as well
       Diffstat:
         M slock.c                             |       2 ++
       
       1 file changed, 2 insertions(+), 0 deletions(-)
       ---
   DIR diff --git a/slock.c b/slock.c
       @@ -201,6 +201,8 @@ lockscreen(Display *dpy, int screen) {
                        unlockscreen(dpy, lock);
                        lock = NULL;
                }
       +        else 
       +                XSelectInput(dpy, lock->root, SubstructureNotifyMask);
        
                return lock;
        }