> On 30 Jan 2018, at 6:23 PM, Mika Westerberg <mika.westerberg@xxxxxxxxx> wrote: > > On Tue, Jan 30, 2018 at 04:32:51PM +0800, Kai Heng Feng wrote: >> Hi Mika, >> >> Bother you again because you are the only TBT expert that I know of ;) > > No problem. That's what I get paid for :-) > >> We are enabling a new CFL desktop with TBT card. The TBT card in >> question doesn’t get enumerated at cold boot, so the card isn’t listed >> under `lspci`. Anything that does a PCI scan (# echo 1 > >> /sys/bus/pci/rescan, S3, warmboot) can make the card gets detected >> correctly. >> >> The same TBT card doesn’t have the issue on a KBL desktop, so I not >> sure if it’s a driver issue though. > > By TBT "card" do you mean TBT host add-in-card? Is it Alpine Ridge? Yes it is. It’s a PCIe add-in-card. It is Alpine Ridge. Wondering if TBT requires special support from PCH or ACPI? I am asking this because the very same card can’t get detected on a Ryzen platform. > >> Also, is there a more appropriate mailing list for TBT discussion? > > I think you can use thunderbolt-software@xxxxxxxxxxxx as well. Good to know ;) Kai-Heng
