> On 30 Jan 2018, at 6:37 PM, Mika Westerberg <mika.westerberg@xxxxxxxxx> wrote: >> >> 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. > > Yes, it needs to have BIOS support and in addition you need to have > those side band signals connected properly. BIOS support is needed for > ACPI hotplug. Sounds like there are two different kind of supports: - Basic TBT support. - ACPI hotplug support in addition to basic support. What do I need to check if the motherboard fully support them? I guess there are special ACPI methods for them? > Unless it is in native PCIe hotplug mode but even then you need to have > BIOS support. How do I check this for the TBT add-in-card? Kai-Heng
