Dual screen system, one goes dark then no reaction


It’s an issue who has appeared some weeks ago, at the time as I’ve both new HDD and cg on the way à réinstallation is planned.

As to the status, it did not get out of offline mode then the only way to have an effect is to disconnected either electricity or the cg.

Still, the strange thing is that the boot login screen and some other apps and features also appear with that screen resolution, as if c/can over the one still active.

Is there something to do? Ie : what happened

I’m not sure if I understood correctly. You say that one screen goes at one point and other one is still active?