Public bug reported:
The Linux 7.0 kernel that ships with Ubuntu 26.04 has CONFIG_NOVA_CORE=m
when it should be disabled.
The NOVA_CORE driver (drivers/gpu/nova-core) is an early development GPU
driver that is non-functional but still binds to all Nvidia GPU PCI
devices that are Turing and later. That is, the driver will probe and
initialize the GPU, but has no other functionality. It is currently
under heavy development, but will not be a viable driver until 2027 at
the earliest.
The current configuration for the 7.0 kernel enables CONFIG_NOVA_CORE
and CONFIG_DRM_NOVA. Both drivers should be disabled.
The Kconfig for NOVA_CORE even defaults to n to avoid this exact
problem, and the Help page tells you that the driver might be non-
functional:
config NOVA_CORE
tristate "Nova Core GPU driver"
depends on 64BIT
depends on PCI
depends on RUST
select AUXILIARY_BUS
select RUST_FW_LOADER_ABSTRACTIONS
default n
help
Choose this if you want to build the Nova Core driver for Nvidia
GPUs based on the GPU System Processor (GSP). This is true for Turing
and later GPUs.
This driver is work in progress and may not be functional.
If M is selected, the module will be called nova_core.
There was no reason for Canonical to believe that this driver should be
enabled.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-15-generic 7.0.0-15.15
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: ttabi 1804 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun May 3 22:59:30 2026
InstallationDate: Installed on 2026-05-04 (0 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
Lsusb:
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
Bus 001 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Lsusb-t:
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=uhci_hcd/2p, 12M
|__ Port 001: Dev 002, If 0, Class=Human Interface Device, Driver=usbhid,
12M
|__ Port 002: Dev 003, If 0, Class=Hub, Driver=hub/7p, 12M
MachineType: VMware, Inc. VMware Virtual Platform
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 vmwgfxdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-15-generic
root=UUID=b3efd09a-4437-446a-983c-83ae393052ba ro
debian-installer/custom-installation=/custom find_preseed=/preseed.cfg auto
preseed/file=/floppy/preseed.cfg automatic-ubiquity noprompt priority=critical
locale=en_US console-setup/modelcode=evdev
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/24/2025
dmi.bios.release: 4.6
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.ec.firmware.release: 0.0
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd03/24/2025:br4.6:efr0.0:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:sku:pfa:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2150845
Title:
Ubuntu 26.04 linux kernel has non-functional nova-core GPU driver
enabled, breaking systems with Nvidia GPUs
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