It looks like the maximum number of ptys under Cygwin is 64. I have two 2160x3840 (4K) monitors and I'm running into this limit. I would like to raise it. After googling around, I found: https://sourceware.org/ml/cygwin/2010-12/msg00357.html Where someone asks about how to increase the number of ptys. And a reply said that the limit is hard-coded. The reply says "You'd have to rebuild the Cygwin DLL to change it." How hard is it to build the Cygwin DLL? Is it something that journeyman C++ programmer without any kernel experience could do? If so, can someone point in the general direction of something like: "So you want to build the Cygwin DLL" document (if any.) -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple