kubuntu-22.04.md

kubuntu 22.04

• enable tag in dolphin
• install nvidia driver
• troubleshoot
  • laptop builtin monitor not work
  • nvidia driver sleep/resume not work

enable tag in dolphin

• enable KDE Settings/File Search

after fs indexed reopen dolphin and a new Tags appears in the left bar.

notes:

• files can tagged by right click on entry Assign Tags
• tags can be viewed from cmdline using getfattr -d FILE

install nvidia driver

kubuntu-driver-manager

troubleshoot

laptop builtin monitor not work

mv /etc/X11/xorg.conf /etc/X11/xorg.conf-tmp
systemctl restart display-manager

nvidia driver sleep/resume not work

behavior: after suspend, the resume unable to back again ( black screen )

to solve, install latest production driver ( manually )

• download from : https://www.nvidia.com/en-us/drivers/unix/
• ( I tested with 525.89.02 https://www.nvidia.com/Download/driverResults.aspx/199656/en-us/ )

if running a nouveau driver could switch to textmode temporarly:

• sudo systemctl set-default multi-user && sudo reboot
• login then
• sudo rmmod nouveau
• run the installer from download dir
• back to graphical mode sudo systemctl set-default graphical && sudo reboot
• login and select prime nvidia sudo apt install -y nvidia-prime && sudo prime-select nvidia
• reboot, now sleep/resume work