Comment 41 for bug 1434581

3.11.x and earlier versions from mainline give me no display -- just a black screen on boot. The system does work, and I posted a dmesg from that boot earlier (dmesg110.txt is the name of the file.) So there's definitely some sort of SAUCE patch or patches that make vesafb work with those kernels, or at least with this particular hardware.

I tried a bunch of different fb drivers in the original post, but I did not try enabling matroxfb when re-building the kernel.

No worries, take your time.