Dolphin slow to start up

Question

Dolphin started taking a long time to start up a couple days ago.
I timed some starts (in seconds)

34 43 40 34 27 42

Some were started by command line, some by the icon on the application bar

~$ dolphin -v  
qt5ct: using qt5ct plugin
dolphin 19.12.3

The icon executes this command: dolphin %u

I uninstalled and reinstalled Dolphin with no effect.

~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.2 LTS
Release:    20.04
Codename:   focal

What can I do to see what is going wrong?

This is a known bug, use Kvantum instead of qt5ct. https://askubuntu.com/q/1233429/124466 — Archisman Panigrahi, Jul 12 '21 at 06:41
Does this answer your question? Qt apps are very slow to load in Xubuntu 20.04 when export QT_QPA_PLATFORMTHEME=gtk2 is enabled — Archisman Panigrahi, Jul 12 '21 at 06:42
Thanks for your suggestion. I installed KVantum using the apt command given and then did the echo command but this did not solve the problem. — Al Lelopath, Jul 12 '21 at 17:47
Are you sure that Ubuntu is using kvantum, and still not using qt5ct? Does the theme in Dolphin change when you change the theme in Kvantum manager? (then Ubuntu is using Kvantum). Does the theme in dolphin change when you change the theme in qt5ct? Then Ubuntu is still using qt5ct. (Enter the command qt5ct to open its settings window). — Archisman Panigrahi, Jul 12 '21 at 18:59
The theme in dolphin does not change when I change the theme in qt5. — Al Lelopath, Jul 12 '21 at 20:20
I don't know why but a couple days and several restarts later, Dolphin starts up quickly once again. — Al Lelopath, Jul 14 '21 at 22:30

0 Answers0