Dolphin

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Dolphin is the default file manager of KDE. For the video game console emulator, see Dolphin emulator.

Installation

Install the dolphin package.

For version control and Dropbox support, install dolphin-plugins. To enable the relevant plugin go to Control > Configure Dolphin... > Services.

Compare files

The Compare files dialog depends on kompare. Alternatively, you can compare files in any diff tool (such as meld) by selecting two files, right clicking, selecting open with, and then the diff tool.

File previews

Enable preview showing of required file type in Control > Configure Dolphin... > General > Previews.

Usage

Open Terminal

Dolphin and other KDE applications use konsole by default. To change the default terminal emulator, run kcmshell5 componentchooser and select Terminal Emulator > Use a different terminal program.

KIO Slaves

Dolphin uses KIO slaves for network access, trash and other functionality, unlike GTK+ file managers which use GVFS. Available protocols are shown in the location bar (editable mode) [1]. To quickly bookmark them, right-click in the workspace, and select "Add to Places".

Troubleshooting

Device names shown as "X GiB Harddrive"

Create a filesystem label, or a partition label, and Dolphin will show this label in the device list instead of the size. See Persistent block device naming#by-label.

Transparent fonts

Fonts in selection frames may become transparent when using the GTK+ Qt style. Native Qt styles such as Cleanlooks and Oxygen are unaffected.

Crashes on mounted SMB share

See Samba#Unable to overwrite files.

Icons not showing

If icons are not displaying on Dolphin, and an error similar to "Pixmap is a null Pixmap" appears on the console, try putting this line in your ~/.profile

[ "$XDG_CURRENT_DESKTOP" = "KDE" ] || [ "$XDG_CURRENT_DESKTOP" = "GNOME" ] || export QT_QPA_PLATFORMTHEME="qt5ct"

Mismatched folder view background colors

When running Dolphin under something other than Plasma, it is possible the background color in the folder view pane will not match the system Qt theme. This is because Dolphin reads the folder view's background color from the [Colors:View] section in ~/.config/kdeglobals. Change the following line to the R,G,B values you prefer:

~/.config/kdeglobals
...
[Colors:View]
BackgroundNormal=23,24,24
...

See also