Public bug reported:
Summary
The NVIDIA GeForce GTX 980 Ti in a Razer Core X Thunderbolt eGPU
enclosure fails to initialize on Ubuntu 24.04 with kernel
7.0.0-31-generic. The same hardware and NVIDIA driver work correctly on
kernel 6.17.0-40-generic.
Hardware
Laptop: Dell XPS 13 (exact model to be added)
eGPU enclosure: Razer Core X
GPU: NVIDIA GeForce GTX 980 Ti, PCI ID 10de:17c8
A Quadro P620 also works in the same enclosure.
Software
Ubuntu 24.04
NVIDIA proprietary driver: 580.173.02
Failing kernel: 7.0.0-31-generic
Working kernel: 6.17.0-40-generic
Steps to reproduce
Connect the GTX 980 Ti in the Razer Core X to the Dell XPS 13.
Boot Ubuntu with kernel 7.0.0-31-generic.
Observe that the GPU is enumerated on PCIe but NVIDIA initialization
fails.
Run nvidia-smi; the GPU is unavailable.
Boot kernel 6.17.0-40-generic with the same NVIDIA 580.173.02 driver.
The GPU initializes successfully and is visible in nvidia-smi.
Expected result
The GTX 980 Ti initializes and is available to the NVIDIA driver, as it
does on kernel 6.17.0-40.
Actual result
The GPU is detected and PCIe BARs are assigned, but NVIDIA
initialization fails with:
NVRM: GPU 0000:06:00.0: RmInitAdapter failed! (0x30:0xffff:1156)
NVRM: GPU 0000:06:00.0: rm_init_adapter failed, device minor number 0
[nvidia-drm] Failed to allocate NvKmsKapiDevice
NVRM: GPU 0000:06:00.0: RmInitAdapter failed! (0x31:0xffff:2780)
Working-kernel confirmation
On kernel 6.17.0-40-generic, NVIDIA 580.173.02 loads successfully.
nvidia-smi reports the GTX 980 Ti with 6144 MiB VRAM, approximately
39°C, and 21 W idle power.
Additional information
The GPU previously worked in this exact laptop and enclosure setup. The
regression appears to be associated with the newer kernel, although the
underlying cause has not yet been identified.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-7.0.0-31-generic 7.0.0-31.31~24.04.1
ProcVersionSignature: Ubuntu 7.0.0-31.31~24.04.1-generic 7.0.14
Uname: Linux 7.0.0-31-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 9 13:53:33 2026
InstallationDate: Installed on 2025-11-06 (307 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: Dell Inc. XPS 13 9310
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-31-generic
root=UUID=fb9b9ecf-f2c5-46a0-a48a-c2bf5c8b673c ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-7.0.0-31-generic N/A
linux-backports-modules-7.0.0-31-generic N/A
linux-firmware 20240318.git3b128b60.0ubuntu3.1
SourcePackage: linux-hwe-7.0
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/25/2026
dmi.bios.release: 3.37
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 3.37.0
dmi.board.name: 0GG9PT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr3.37.0:bd05/25/2026:br3.37:svnDellInc.:pnXPS139310:pvr:rvnDellInc.:rn0GG9PT:rvrA00:cvnDellInc.:ct10:cvr:sku0991:pfaXPS:
dmi.product.family: XPS
dmi.product.name: XPS 13 9310
dmi.product.sku: 0991
dmi.sys.vendor: Dell Inc.
** Affects: linux-hwe-7.0 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
** Attachment added: "dmesg-7.0-broken.txt"
https://bugs.launchpad.net/bugs/2166880/+attachment/5998912/+files/dmesg-7.0-broken.txt
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https://bugs.launchpad.net/bugs/2166880
Title:
GTX 980 Ti eGPU fails RmInitAdapter on kernel 7.0.0-31, works on
6.17.0-40 with NVIDIA 580
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