If you're running off the integrated GPU, that error message can be expected, since the monitor is connected to the onboard device.
Does the HD7870 show up in the device manage ? Are there any error codes attached to it ?
Hi there ray, thank you for your reply.
Yes, my HD7870 does show up in the device manager, and it is apparently okay.
What would the integrated GPU have to do with the error? As far as I understand, as long as I have my 7870 in my PC and Crimson installed, the fact that the iGPU is set as primary doesn't mean it has to cause any software issues. Please correct me if I'm wrong
Now I have another problem I installed some recent Windows critical updates, and now the screen is black after the Windows logo even with my iGPU set as primary. I have no clue what happened.