software-properties-qt does not load driver information

[Erich Eickmeyer]

Driver information is not being loaded by software-properties-qt. This appears to be a python issue, perhaps a python 3.10 compatibility issue.

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/softwareproperties/qt/SoftwarePropertiesQt.py", line 1024, in detect_drivers
    self.devices = detect.system_device_drivers(self.apt_cache)
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 752, in system_device_drivers
    for pkg, pkginfo in system_driver_packages(apt_cache, sys_path,
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 448, in system_driver_packages
    for p in packages_for_modalias(apt_cache, alias):
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 200, in packages_for_modalias
    apt_cache_hash = hash(package.get_fullname() for package in apt_cache.packages)
AttributeError: 'Cache' object has no attribute 'packages'
Exception ignored in: <function DetectDriverThread.__del__ at 0x7f9aaf4371c0>

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: software-properties-qt 0.99.19
ProcVersionSignature: Ubuntu 5.15.0-22.22-lowlatency 5.15.19
Uname: Linux 5.15.0-22-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu79
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Mon Mar 21 11:34:54 2022
InstallationDate: Installed on 2021-03-20 (365 days ago)
InstallationMedia: Ubuntu-Studio 21.04 "Hirsute Hippo" - Alpha amd64 (20210320)
PackageArchitecture: all
SourcePackage: software-properties
UpgradeStatus: Upgraded to jammy on 2021-11-07 (134 days ago)

[Darin Miller (darinmiller)]

Not an expert here, but the problem appears to be the import apt line 58 in SoftwarePropertiesQt.py.

apt.Cache() lacks the packages attribute.

Replacing apt with apt_pkg (as seen in the detect.py package and to which the apt_cache is passed) should fix the problem.

apt is only called twice in SoftwarePropertiesQt.py and both times, it is used (incorrectly) as follows:

self.apt_cache = apt.Cache()

If this is the correct approach to fix this issue, I will attempt to submit a patch.

[Sebastien Bacher (seb128)]

Could you check if https://launchpad.net/ubuntu/+source/software-properties/0.99.20 fixes the issue?

[Erich Eickmeyer (eeickmeyer)]

That does indeed seem to fix the problem, Sebastien. :)

[Pascal Tempier (orogor)]

Hello

@eeickmeyer do you know the status of this issue in ubuntu-drivers-common ?

This bug is present when installing supplémentary packages and detecting an nvidia card on 22.04.2.

Here is a workaround we use that sometime works :

sed -i.orig "s/version = int(package_name.split('-')[-1])/version = int(package_name.split('-')[-2])/" /usr/lib/python3/dist-packages/UbuntuDrivers/detect.py

[Erich Eickmeyer (eeickmeyer)]

Pascal,

This is a very old bug that was closed as fixed and should not be necro-bumped. If you're noticing something new, open a new bug report.

Furthermore, bug reports are not places for technical support.