Hello all!

I have Debian 10 Buster with KDE. Installed a KDE Partition Manager and can't launch it. After entering a root password in KDEsu window it freezes and hangs up. How to find why?
Maybe there's other ways to start KDE Partition Manager as root without usin a kdesu?

UPDATE

KDEsu also cannot load grub-customiser

Tried to launch it from konsole with after su -:

root@debian:~# partitionmanager
qt.qpa.screen: QXcbConnection: Could not connect to display
Could not connect to any X display.


root@debian:~# grub-customizer
Unable to init server: Could not connect: Connection refused

(grub-customizer:5153): Gtk-WARNING **: 09:54:55.071: cannot open display:

just run

Code: Select all

partitionmanager

from a user shell, it will prompt you for your password.
AFAIK kdesu is obsolete since a while, and nearly all distributions nowadays use sudo instead of su

In general, GUI applications should never be run from a root konsole

Thank you for your reply. But I already 'solved' it by adding my user to sudoers list.