In the meantime, try the workaround described at http://penguindreams.org/blog/running-a-lg31mu97-on-linux-at-4096x2160-at-60hz/
In the meantime, try the workaround described at http:// penguindreams. org/blog/ running- a-lg31mu97- on-linux- at-4096x2160- at-60hz/