This has happened twice in two weeks, and it hadn't happened before. I used to be able to send the PC to sleep mode and nothing would happen. Now, if I do it, when I try to wake it up, the monitor doesn't recieve any signal from the GPU.
To solve this, I have to disconnect the GPU from the motherboard, turn the PC on, turn it off and finally reconnect the GPU for everything to go back to normal.
It's really annoying to open the case and perform those operations every time I want to send the PC to sleep mode. What could be causing this malfunctioning?
Additional information
OS: Windows 7
CPU: AMD A10-5800K
GPU: AMD Radeon R7 200 Series
Mother: ASUS A55M-A