Comment 111 for bug 1803179

(continued)
Yet, the acpi still contains
While (LNKS < 0x07)
    {

So the question is, what LNKS really is that needs to be 0111. On that device, it can be neither speed nor width?
There are also other notebooks that fail to work after resume where the gpu is connected to the same x4 bridge
Intel Corporation Sunrise Point-LP PCI Express Root Port
like
Asus R558U
ASUS zenbook ux310uq
Asus X705UQ
Asus x556
Alpha Centurion Ultra
MSI cx62
HP Spectre
Toshiba Satellite Pro a50
...
but on those, the bridge is not limited to gen2.
So is really something wrong with that bridge?