I'm having this problem since the past few days and i don't know how to fix it.
My monitor suddenly turns off (it's connected to video card). I switch the monitor cable directly on motherboard onboard gpu to see what happened. I realized that my AMD HD7700 was gone in the device manager. It detects my video card but the driver was uninstalled. so i had to install it again. This happens everyday and already for the 3rd time. And i do the same remedy. I'm already tired reinstalling the driver again and again. Im not sure i its a hardward problem, because the card works fine after i install the driver, its just that the driver is always gone after a day usually happens every morning .could you help me find a permanent fix for this. thanks.and sorry for my bad english