I have a different problem now, when I launch the program
I have this output:
X Error of failed request: BadRRCrtc (invalid Crtc parameter)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 22 (RRGetCrtcGammaSize)
Crtc id in failed request: 0x1a98e00
Serial number of failed request: 62
Current serial number in output stream: 62
I believe because the linux server has no monitor so Xrandr fails.
but I think I have to open another post for that. Because this is a different problem, right?