The HP LP2480zx is able to switch the EDID info on the fly.
After changing the colour space on the monitors OSD the EDID is switched by the monitor.
But applications can not see that. Only a restart of Xorg makes the new EDID available.
A call to oyranos-monitor-nvidia dos not fetch the new EDID. After erasing the EDID atoms
the nvidia driver still delivers the old outdated EDID info.
new EDID becomes immediately visible without the need to restart Xorg. (btw. on osX dynamic EDID switching works fine.)