I have problem with second dipslay on MAME 0.236 / Ubuntu / NVIDIA.
When I run ROM from UI menu, second screen is black:
![Image](https://i.ibb.co/NW9HFQT/IMG-20211018-234210.jpg)
When I run ROM from command line. eg. mame <rom_name>, second screen shown
![Image](https://i.ibb.co/NWC37jC/IMG-20211018-234237.jpg)
Strange is this, when i setup three screens - all works fine.