Public bug reported: Clean install of Kubuntu 20.04, with the "install proprietary drivers" option checked. System didn't go past boot screen. Further checks suggested that there is no working graphics driver compatible with SDDM/KDE (XDM would start using VESA).
$ lspci -nn 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF116 [GeForce GTS 450 Rev. 2] [10de:1245] (rev a1) $ ubuntu-drivers devices == /sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0 == modalias : pci:v000010DEd00001245sv00001458sd00003523bc03sc00i00 vendor : NVIDIA Corporation model : GF116 [GeForce GTS 450 Rev. 2] driver : nvidia-driver-435 - distro non-free driver : nvidia-driver-390 - distro non-free driver : nvidia-340 - distro non-free driver : nvidia-driver-440 - distro non-free recommended driver : xserver-xorg-video-nouveau - distro free builtin The modalias appears in apt show nvidia-driver-440. This is incorrect, this GPU is not supported by the 440 driver. I manually switched to 390 (which is listed as supported by Nvidia) and that works. This is also seen in the support list (/usr/share/doc/nvidia- driver-440/README.txt.gz). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: nvidia-driver-440 (not installed) ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41 Uname: Linux 5.4.0-39-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Sat Jun 27 13:19:14 2020 InstallationDate: Installed on 2020-06-25 (1 days ago) InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: nvidia-graphics-drivers-440 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: nvidia-graphics-drivers-440 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-440 in Ubuntu. https://bugs.launchpad.net/bugs/1885368 Title: Installed by ubuntu-drivers for unsupported GPU (GTS 450) Status in nvidia-graphics-drivers-440 package in Ubuntu: New Bug description: Clean install of Kubuntu 20.04, with the "install proprietary drivers" option checked. System didn't go past boot screen. Further checks suggested that there is no working graphics driver compatible with SDDM/KDE (XDM would start using VESA). $ lspci -nn 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF116 [GeForce GTS 450 Rev. 2] [10de:1245] (rev a1) $ ubuntu-drivers devices == /sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0 == modalias : pci:v000010DEd00001245sv00001458sd00003523bc03sc00i00 vendor : NVIDIA Corporation model : GF116 [GeForce GTS 450 Rev. 2] driver : nvidia-driver-435 - distro non-free driver : nvidia-driver-390 - distro non-free driver : nvidia-340 - distro non-free driver : nvidia-driver-440 - distro non-free recommended driver : xserver-xorg-video-nouveau - distro free builtin The modalias appears in apt show nvidia-driver-440. This is incorrect, this GPU is not supported by the 440 driver. I manually switched to 390 (which is listed as supported by Nvidia) and that works. This is also seen in the support list (/usr/share/doc/nvidia- driver-440/README.txt.gz). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: nvidia-driver-440 (not installed) ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41 Uname: Linux 5.4.0-39-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.3 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Sat Jun 27 13:19:14 2020 InstallationDate: Installed on 2020-06-25 (1 days ago) InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: nvidia-graphics-drivers-440 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-440/+bug/1885368/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp