Comment 117 for bug 1803179

well, you can try out my patch on gen2 when you replace the 8_0 with 5_0 in the patch. Calls look like that: "nvkm_pcie_set_link(pci, NVKM_PCIE_SPEED_8_0, 16);
". 16 is for the amount of lanes, but we completely ignore this value anyway (there are some macbooks where the binary driver actually changes the width, but usually it seems to be super unstable on other chips).

My GPU is connected with a "00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 05)"

I seriously don't think it is only an issue on a few controllers, and might even happen with any one.