Public bug reported:
Updating the HWE Kernel from 6.5.0-45 to 6.8.0-40 on Jammy/22.04-4 LTS
(Kubuntu) causes systems using KDE to boot into black screen because
plasmashell won't load. I couldn't find any suspicious messages
inspecting the output of `dmesg -T`. Running `kquitapp5 plasmashell &&
kstart5 plasmashell` yields the message "Application plasmashell could
not be found using service org.kde.plasmashell and path
/MainApplication."
I observe this bug on two different systems:
- System 1: CPU AMD Ryzen 7 3700X, GPU AMD Radeon Vii
- System 2: CPU AMD Ryzen 9 5950X, GPU nVidia Geforce 1080 Ti
(linux-modules-nvidia-550-6.8.0-40-generic/jammy-updates,jammy-security,now
6.8.0-40.40~22.04.3 amd64)
Choosing to boot kernel `6.5.0-45-generic #45~22.04.1-Ubuntu SMP
PREEMPT_DYNAMIC Mon Jul 15 16:40:02 UTC 2 x86_64 x86_64 x86_64
GNU/Linux` manually via the grub boot menu solves the problem on both
systems.
cat /proc/version_signature > version.log
Ubuntu 6.8.0-40.40~22.04.3-generic 6.8.12
lsb_release -rd
Description: Ubuntu 22.04.4 LTS
Release: 22.04
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "lspci-vnvn-system_1.log"
https://bugs.launchpad.net/bugs/2077069/+attachment/5806025/+files/lspci-vnvn-system_1.log
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https://bugs.launchpad.net/bugs/2077069
Title:
Plasmadesktop won't load after upgrade to 6.8.0-40 (Jammy/22.04-4LTS)
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