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When running the ISO tracker test case "Install UEFI SecureBoot nVidia
in Ubuntu Desktop" without internet connectivity with the questing
candidate image (20251007)  I'd expect nvidia-driver-580 to be installed
on my device (Acer A515 with NVIDIA Geforce MX130), but it wasn't. If
the installer runs with the live session connected to the internet then
it works.

Chroot'ing into the target system after an offline installation confirms
that nvidia packages were not installed and attempting to install with
`ubuntu-drivers install --no-oem` shows that the packages in the pool
are not installable due missing dependency on libnvidia-compute-580. See
details below. Looking at subiquity logs it runs that command it reports
success (in fact despite the output below that command exits 0). More
importantly, the package libnvidia-compute-580 is not in the image pool
(which is what I think it's causing the issue).

----
ubuntu@ubuntu:/target$ sudo mount --rbind /proc /target/proc
ubuntu@ubuntu:/target$ sudo mount --rbind /sys /target/sys
ubuntu@ubuntu:/target$ sudo mount --rbind /dev /target/dev
ubuntu@ubuntu:/target$ sudo mount --rbind /run /target/run
ubuntu@ubuntu:/target$ cd ..
ubuntu@ubuntu:/$ sudo chroot /target
root@ubuntu:/# apt list --installed | grep nvidia

WARNING: apt does not have a stable CLI interface. Use with caution in
scripts.

root@ubuntu:/# ubuntu-drivers list
nvidia-driver-580, (kernel modules provided by 
linux-modules-nvidia-580-generic-hwe-24.04)
nvidia-driver-580-server, (kernel modules provided by 
linux-modules-nvidia-580-server-generic-hwe-24.04)
root@ubuntu:/# ubuntu-drivers install --no-oem --dry-run
Usage: ubuntu-drivers install [OPTIONS] [DRIVER]...
Try 'ubuntu-drivers install -h' for help.

Error: No such option: --dry-run
root@ubuntu:/# ubuntu-drivers install --no-oem --dryrun
Usage: ubuntu-drivers install [OPTIONS] [DRIVER]...
Try 'ubuntu-drivers install -h' for help.

Error: No such option: --dryrun
root@ubuntu:/# ubuntu-drivers install --no-oem
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Solving dependencies... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 linux-modules-nvidia-580-generic-hwe-24.04 : Depends: 
linux-modules-nvidia-580-6.17.0-5-generic (= 6.17.0-5.5) but it is not going to 
be installed
                                              Depends: nvidia-kernel-common-580 
(>= 580.82.07) but it is not going to be installed
 nvidia-driver-580 : Depends: libnvidia-gl-580 (= 580.82.07-0ubuntu2) but it is 
not going to be installed
                     Depends: nvidia-kernel-common-580 (<= 580.82.07-1) but it 
is not going to be installed
                     Depends: nvidia-kernel-common-580 (>= 580.82.07) but it is 
not going to be installed
                     Depends: nvidia-kernel-source-580 (= 580.82.07-0ubuntu2) 
but it is not going to be installed
                     Depends: libnvidia-compute-580 (= 580.82.07-0ubuntu2) but 
it is not installable
                     Depends: libnvidia-extra-580 (= 580.82.07-0ubuntu2) but it 
is not going to be installed
                     Depends: nvidia-compute-utils-580 (= 580.82.07-0ubuntu2) 
but it is not going to be installed
                     Depends: libnvidia-decode-580 (= 580.82.07-0ubuntu2) but 
it is not going to be installed
                     Depends: libnvidia-encode-580 (= 580.82.07-0ubuntu2) but 
it is not going to be installed
                     Depends: nvidia-utils-580 (= 580.82.07-0ubuntu2) but it is 
not going to be installed
                     Depends: xserver-xorg-video-nvidia-580 (= 
580.82.07-0ubuntu2) but it is not going to be installed
                     Depends: libnvidia-cfg1-580 (= 580.82.07-0ubuntu2) but it 
is not going to be installed
                     Depends: libnvidia-fbc1-580 (= 580.82.07-0ubuntu2) but it 
is not going to be installed
                     Recommends: nvidia-settings but it is not going to be 
installed
                     Recommends: nvidia-prime (>= 0.8) but it is not going to 
be installed
                     Recommends: libnvidia-compute-580:i386 (= 
580.82.07-0ubuntu2) but it is not installable
                     Recommends: libnvidia-decode-580:i386 (= 
580.82.07-0ubuntu2) but it is not installable
                     Recommends: libnvidia-encode-580:i386 (= 
580.82.07-0ubuntu2) but it is not installable
                     Recommends: libnvidia-fbc1-580:i386 (= 580.82.07-0ubuntu2) 
but it is not installable
                     Recommends: libnvidia-gl-580:i386 (= 580.82.07-0ubuntu2) 
but it is not installable
E: Unable to satisfy dependencies. Reached two conflicting decisions:
   1. nvidia-utils-580:amd64 is selected for install because:
      1. nvidia-driver-580:amd64=580.82.07-0ubuntu2 is selected for install
      2. nvidia-driver-580:amd64 Depends nvidia-utils-580 (= 580.82.07-0ubuntu2)
   2. nvidia-utils-580:amd64 Depends libnvidia-compute-580 (>= 580.82.07)
      but none of the choices are installable:
      [no choices]

---

** Affects: nvidia-graphics-drivers-580 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
nvidia-driver-580 not installable in questing live session offline
https://bugs.launchpad.net/bugs/2127099
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which is subscribed to nvidia-graphics-drivers-580 in Ubuntu.

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