Public bug reported:
This bug is encountered on a computer with:
Kubuntu 21.10
MSI Gaming X Trio 3060 Ti
The following repo is used:
ppa: kubuntu-backports
GPU driver:
Nvidia driver metapackage from nvidia-driver-470(proprietary, tested)
What I expected: SDDM working just fine, showing every elements
What happened: SDDM is showing a black screen on login, logout, lockscreen. BUT
logging in works.
What I did: Updating nvidia-driver-470 from 470.63 to 470.74
What I tried to do to fix: dpkg-reconfigure sddm
I suspect something is conflicting SDDM with the 470.74 driver.
Downgrading to 470.63 will fix this problem.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: nvidia-driver-470 470.74-0ubuntu1
ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14
Uname: Linux 5.13.0-20-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Thu Oct 21 20:19:55 2021
InstallationDate: Installed on 2021-08-24 (58 days ago)
InstallationMedia: Kubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
ProcEnviron:
LANGUAGE=en_HK:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_HK.UTF-8
SHELL=/bin/bash
SourcePackage: nvidia-graphics-drivers-470
UpgradeStatus: Upgraded to impish on 2021-10-21 (0 days ago)
** Affects: nvidia-graphics-drivers-470 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug impish
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https://bugs.launchpad.net/bugs/1948011
Title:
SDDM shows a black screen when nvidia-driver-470 is updated to 470.74
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