Krusared works fine

firefly@firefly:~$ krusader
libEGL warning: DRI2: failed to authenticate
QApplication: invalid style override passed, ignoring it.
Trying to convert empty KLocalizedString to QString.
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find "mtp"
kf5.kio.core: Refilling KProtocolInfoFactory cache in the hope to find "mtp"






firefly@firefly:~$ doublecmd 
ImageMagick: libMagickWand-6.Q16.so.3
Starting GuiMessageQueue
Starting Double Commander
Double Commander 0.8.2 beta
Revision: 8010
Build: 2018/03/07
Lazarus: 1.8.2.0
Free Pascal: 3.0.4
Platform: aarch64-Linux-gtk2
System: Ubuntu 18.04.1 LTS
Desktop Environment: LXDE
Widgetset library: GTK 2.24.32
This program is free software released under terms of GNU GPL 2
(C)opyright 2006-2017 Alexander Koblov (alexx2000@mail.ru)
   and contributors (see about dialog)
Executable directory: /usr/lib/doublecmd/
Loading configuration from /home/firefly/.config/doublecmd/
WDX: LOAD: /usr/lib/doublecmd/plugins/wdx/deb_wdx/deb_wdx.wdx
WDX: LOAD: /usr/lib/doublecmd/plugins/wdx/rpm_wdx/rpm_wdx.wdx
WDX: LOAD: /usr/lib/doublecmd/plugins/wdx/audioinfo/audioinfo.wdx
Error loading configuration file /home/firefly/.config/doublecmd/favoritetabs.xml
PollThread: Start polling
PollThread: AddPoll 9
Creating PixmapManager
Loading icon theme DCTheme
Loading icon theme DCTheme
Error: pixmap [/usr/lib/doublecmd/doublecmd] not loaded!
PollThread: AddPoll 16
UDev: Begin monitoring
Detecting mounts through /proc/self/mounts
PollThread: AddPoll 17
TColumnsFileView.Create components
Creating TFileSystemFileSource
TColumnsFileView.Create components
FileSystemWatcher thread starting
Unhandled exception: EAccessViolation: Access violation
  Stack trace:
  $0000000000000000 in 

frmMain.frmMainShow
Error loading configuration file /home/firefly/.config/doublecmd/highlighters.xml

(doublecmd:11629): GLib-GIO-CRITICAL **: 20:33:37.467: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

(doublecmd:11629): GLib-GIO-CRITICAL **: 20:33:37.467: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
FileSystemWatcher thread finished
Saving configuration
PollThread: RemovePoll 9
PollThread: AddPoll 9
Finished Double Commander
Destroying main form
Drive watcher finished
Waiting for workers thread 0000000023190978
Finalized workers thread   0000000023190978
Waiting for FileSystemWatcher thread
Waiting for workers thread 0000000023191278
Finalized workers thread   0000000023191278
Destroying TFileSystemFileSource when refcount=0
Main form destroyed
Finishing GuiMessageQueue
Shutting down PixmapManager
PollThread: RemovePoll 9
PollThread: Finish polling













TUX see --------- permissions on the dirs. Can't open dirs.

firefly@firefly:~$ sudo tuxcmd

(tuxcmd:9859): GLib-GIO-CRITICAL **: 20:31:38.405: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

(tuxcmd:9859): GLib-GIO-CRITICAL **: 20:31:38.405: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

(tuxcmd:9859): GLib-GIO-CRITICAL **: 20:31:38.405: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
^C
firefly@firefly:~$ tuxcmd

(tuxcmd:10568): GLib-GIO-CRITICAL **: 20:32:11.824: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

(tuxcmd:10568): GLib-GIO-CRITICAL **: 20:32:11.824: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

(tuxcmd:10568): GLib-GIO-CRITICAL **: 20:32:11.824: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed
firefly@firefly:~$