Try maximising the window by default... although that's beyond the abilities of a raw X app without a high-level toolkit. And it requires Mir-on-X support resizing (which in itself would solve the bug).
Alternatively, query the screen dimensions on start-up and make sure your default size isn't larger.
Try maximising the window by default... although that's beyond the abilities of a raw X app without a high-level toolkit. And it requires Mir-on-X support resizing (which in itself would solve the bug).
Alternatively, query the screen dimensions on start-up and make sure your default size isn't larger.