RX470 - Another display shown when turning on monitor (I have just 1 plugged).

Issue:

 

Sometimes when I turn on my monitor after some period of time - the icons are gone and I can check that it 'shows' another monitor

 

System:

R5 1500x (no oc)

B350M - Mortar (MSI)
Hyper X 8gb (4-4kit)
Thermaltake Smart 600w

 

 

Latest Crimson Software (17.9.2)