Re: thunderbolt: PCIe tunnel creation fails for USB4 eGPU dock on Titan Ridge host

Hi David,

On Fri, Aug 07, 2026 at 01:35:01PM +0200, Mika Westerberg wrote:
> Okay I took my laptop (TB3) and connected TB5 dock and I can see exactly
> the same issue as yours. It definitely should work in TB3 compatible mode
> but apparently not. Let me ask around.

Sorry about the delay - inside big corporation finding correct people
sometimes takes long time. Unfortunately the reason is that none of the
Thunderbolt 3 firmware connection managers support Thunderbolt 5 devices.
It needs to be Thunderbolt 4/5 host (FW CM and SW CM).