On Thu, Feb 05, 2026 at 10:38:27PM -0000, bertrandlec--- via Devel wrote:
> > Bertrand, can you share `lspci -t` output, and also `lspci -vvs 80:00.0` ?
> 
> I don't have any device at address 80:00.0.

Oh, that's why it fails...

This feels like a firmware (if not hardware) issue, I think root complex
should be visible normally... But maybe somebody more familiar with PCIe
spec can help?

> -+-[0000:00]-+-00.0  Intel Corporation Arrow Lake-HX 8p+16e cores Host Bridge
>  |           +-01.0-[04]----00.0  Samsung Electronics Co Ltd NVMe SSD 9100 
> PRO [PM9E1]
>  |           +-02.0  Intel Corporation Arrow Lake-S [Intel Graphics]
>  |           +-04.0  Intel Corporation Device ad03
>  |           +-06.0-[01]--+-00.0  NVIDIA Corporation GB207GLM [RTX PRO 1000 
> Blackwell Generation Laptop GPU]
>  |           |            \-00.1  NVIDIA Corporation GB207 High Definition 
> Audio Controller
>  |           +-07.0-[20-49]--
>  |           +-08.0  Intel Corporation Arrow Lake-HX Gauss Newton Algorithm 
> (GNA)
>  |           +-0a.0  Intel Corporation Arrow Lake-HX Crash Log & Telemetry
>  |           +-0b.0  Intel Corporation Arrow Lake NPU
>  |           +-0d.0  Intel Corporation Meteor Lake-P Thunderbolt 4 USB 
> Controller
>  |           +-0d.2  Intel Corporation Meteor Lake-P Thunderbolt 4 NHI #0
>  |           +-14.0  Intel Corporation Arrow Lake-HX Shared SRAM (SOC-S)
>  |           +-1f.0  Intel Corporation Arrow Lake-HX Direct eSPI Controller
>  |           \-1f.5  Intel Corporation Arrow Lake-HX SPI (flash) Controller
>  \-[0000:80]-+-14.0  Intel Corporation 800 Series PCH USB 3.1 xHCI HC
>              +-14.5  Intel Corporation Device 7f2f
>              +-15.0  Intel Corporation 800 Series PCH I2C Controller #0
>              +-15.3  Intel Corporation 800 Series PCH I2C Controller #3
>              +-16.0  Intel Corporation 800 Series PCH HECI #1
>              +-19.0  Intel Corporation 800 Series PCH I2C Controller #4
>              +-19.1  Intel Corporation 800 Series PCH I2C Controller #5
>              +-1b.0-[83]--
>              +-1b.4-[88-d8]----00.0-[89-8d]--+-00.0-[8a]----00.0  Intel 
> Corporation JHL9580 Thunderbolt 5 80/120G NHI [Barlow Ridge Host 80G 2023]
>              |                               +-01.0-[8b]--
>              |                               +-02.0-[8c]----00.0  Intel 
> Corporation JHL9580 Thunderbolt 5 80/120G USB Controller [Barlow Ridge Host 
> 80G 2023]
>              |                               \-03.0-[8d]--
>              +-1c.0-[81]--
>              +-1c.6-[86]----00.0  Intel Corporation Ethernet Controller I226-V
>              +-1d.0-[82]--
>              +-1d.4-[85]----00.0  O2 Micro, Inc. Device 9860
>              +-1d.6-[84]----00.0  Intel Corporation Wi-Fi 7(802.11be) 
> AX1775*/AX1790*/BE20*/BE401/BE1750* 2x2
>              +-1f.0  Intel Corporation Device 7f12
>              +-1f.3  Intel Corporation 800 Series ACE (Audio Context Engine)
>              +-1f.4  Intel Corporation 800 Series PCH SMBus Controller
>              \-1f.5  Intel Corporation 800 Series PCH SPI (flash) Controller

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab

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