Hey Armin Wolf, I found something that might me quite helpful, 4,1289,478717534,-;acer_wmi: Unknown function number - 9 - 0 4,1290,478733471,-;acer_wmi: Unknown function number - 8 - 0 4,1291,1751600805,-;acer_wmi: Unknown function number - 9 - 1 4,1292,1751612580,-;acer_wmi: Unknown function number - 8 - 1 Thanks, Rayan Margham