Hi,
It looks like the EDID of the HP monitor is unavailable or invalid. This can either be due to the monitor itself or the video cable connected to the monitor. Because of EDID can't be read you are seeing "no monitor" in Windows Display Properties.
Regarding the window position not persisting it is likely that the notebook is causing a USB reset to occur which would cause the USB connection to disconnect and reconnect and thus not preserve the location of your application windows.
Thanks,
James
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