The GPU creates the screen by sending data via the cable to the monitor.
If something is wrong with the GPU (either hardware or software), you could get that error or some error related.
So, it may be worth trying it yes.
It might also be worth testing the GPU.
Run Furmark to test your GPU. Furmark tutorial
Run Furmark for around 30 minutes
Your GPU temperatures will rise quickly while Furmark is running. Keep a keen eye on them and abort the test if temperatures rise too high