I have a Sony VPCSE17FX laptop. It came with the AMD Radeon 6630M GPU, along with the Intel HD 3000 GPU built into the CPU.
Recently, it developed a grey vertical band across the LCD screen. I'm fairly certain it's not a Windows driver issue, as the band shows immediately upon startup (before it goes into Windows).
So I'm guessing that the GPU circuitry has gone bad? If that's the case, is it possible to reroute the video signal through the remaining GPU?
1. The first thing I need to know is which GPU is driving the LCD display.
2. After ascertaining the above, can I disable one GPU and use the other?
Thanks in advance.