Minecraft uses an older version of LWJGL which crashes when the user has disabled one of his/her displays.
This bug is fixed in https://github.com/LWJGL/lwjgl/commit/1dbca8b6236768793cf3c52702625ece7c3c3992 , but Minecraft bundles an older version (more than a year old), which still contains this bug
MC-100030
The bundled LWJGL version contains a bug that is fixed upstream
Resolved
Invalid
2
(Unassigned)
Unconfirmed
Minecraft 1.9, Minecraft 1.9.1 Pre-Release 3, Minecraft 1.9.2
Retrieved
There hasn't been a new LWJGL 2.9 release since the fix. Ticket is either WAI, or invalid in case the developers don't decide to merge in the upstream changes.