Hardware Drivers :: TV Tuner Software Works When On Battery Doesn't When Plugged In

My TV tuner gets full signal when working with the battery while it gets null signal when plugged in to the AC socket whenever the battery is in. The matter is related I think to the battery saving profile. I have an ASUS K75V with i7 - 36300QM, 2.4GHz. OS Windows 8. I tried to set the setting of the active profile equal for "on battery" and "plugged in", copying the settings of the first to the second naturally. It still doesn't work. It seems that is not configurable.

Passing from working (on battery):
Process C:Program FilesASUSP4GBatteryLife.exe (process ID:2560) reset policy scheme from {512a6ac6-efc1-4441-85c9-cccf29b69cd2} to {df011ed9-9131-49b9-8090-46963cfb65ce}

To not working (plugged in):
Process C:Program FilesASUSP4GBatteryLife.exe (process ID:2560) reset policy scheme from {df011ed9-9131-49b9-8090-46963cfb65ce} to {512a6ac6-efc1-4441-85c9-cccf29b69cd2}