RTX 5060 Ti eGPU unable to init, falls of the bus immediately

NVIDIA Open GPU Kernel Modules Version

nvidia-headless-580-open

Please confirm this issue does not happen with the proprietary driver (of the same version). This issue tracker is only for bugs specific to the open kernel driver.

• I confirm that this does not happen with the proprietary driver package.

Operating System and Version

Ubuntu 24.04.3 LTS

Kernel Release

Linux NS5x-NS7xAU 6.14.0-36-generic #36~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Oct 15 15:45:17 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Please confirm you are running a stable release kernel (e.g. not a -rc). We do not accept bug reports for unreleased kernels.

• I am running on a stable kernel release.

Hardware: GPU

PNY OC 16G Geforce RTX 5060 Ti

Describe the bug

preamble: I use the PCI brige "Cyid TB3-HL7" connected with a Thunderbolt 4 cable. It works fine with a Gigabyte Windforce OC 12G GForce RTX 3060 with driver nvidia-headless-580-open nvidia-dkms-580-open.

I've just buy a PNY OC 16GB Geforce RTX 5060 Ti to replace the previous, but it does not work as you will see in nvidia-bug-report.log.gz

To Reproduce

• power on the laptop
• plug the 5060 on the PCI Bridge (Cyid TB3-HL7)
• plug power wire to 5060
• plug power wire to PCI Bridge
• plug the Thunderbolt 4 wire on the bridge then the laptop
  then
• nvidia-msi does not find the card
• many error in the system journal

Bug Incidence

Always

nvidia-bug-report.log.gz

nvidia-bug-report.log.gz

More Info

Installed packages :

$ dpkg --get-selections | grep -i nvidia
libnvidia-cfg1-580:amd64			install
libnvidia-common-580				install
libnvidia-compute-535:amd64			deinstall
libnvidia-compute-580:amd64			install
libnvidia-decode-580:amd64			install
libnvidia-gpucomp-580:amd64			install
libnvidia-ml-dev:amd64				install
nvidia-cuda-dev:amd64				install
nvidia-dkms-580-open				install
nvidia-driver-assistant				install
nvidia-firmware-580				install
nvidia-headless-580-open			install
nvidia-headless-no-dkms-580-open		install
nvidia-kernel-common-580			install
nvidia-kernel-source-580-open			install
nvidia-modprobe					install
nvidia-persistenced				install
nvidia-utils-580				install

Here are some strange lines which I don't understand :

kernel: pci 0000:03:00.0: bridge window [mem size 0x24400000 64bit pref]: can't assign; no space
...
kernel: pci 0000:03:00.0: bridge window [io  size 0x3000]: can't assign; no space

I've identified this error lines :

kernel: [drm] [nvidia-drm] [GPU ID 0x00000500] Loading driver
kernel: NVRM: GPU at PCI:0000:05:00: GPU-ab296f23-e6a6-a23b-b6c1-33f9b813df84
kernel: NVRM: Xid (PCI:0000:05:00): 79, GPU has fallen off the bus.
kernel: NVRM: GPU 0000:05:00.0: GPU has fallen off the bus.
kernel: NVRM: kgspRcAndNotifyAllChannels_IMPL: RC all channels for critical error 79.
...
kgspBootstrap_GH100: GSP-FMC reported an error while attempting to boot GSP: 0xffffffff
_kgspBootGspRm: unexpected WPR2 already up, cannot proceed with booting GSP
_kgspBootGspRm: (the GPU is likely in a bad state and may need to be reset)
RmInitAdapter: Cannot initialize GSP firmware RM
...

Start with nvidia-bug-report.log.gz and the reproduced kernel journal, focusing on the PCI bridge resource-allocation messages and Xid 79 during GSP initialization. Compare the working RTX 3060 setup with the RTX 5060 Ti reproduction; done means identifying a source location or confirmed driver-side cause for the open-kernel-module failure.