Deepin Desktop Environment

Related articles
Desktop environment
GNOME
LightDM
The
Deepin Desktop Environment
(DDE) is the
desktop environment
of the
deepin
Linux distribution. It is designed by the
Wuhan Deepin Technology Co.,Ltd
.  deepin is a Linux distribution devoted to providing a beautiful, easy to use, safe and reliable system for global users. deepin is an open source GNU/Linux operating system, based on Linux kernel and mainly on desktop applications, supporting laptops, desktops, and all-in-ones. The DDE is comprised of the Desktop Environment, deepin Window Manager, Control Center, Launcher and Dock.
Installation
Install
deepin
and
deepin-kwin
for the basic components for a minimal desktop interface.
Optionally, also install
deepin-extra
for some extra applications for a more complete desktop environment.
Starting
Via a display manager
LightDM
is the default display manager for DDE, and it will installed as dependency. Simply
enable
lightdm.service
to use it.
Note
A valid home directory must exist for a user other than root for the greeter to work.
Tip
Change the greeter for DDE's "lightdm-deepin-greeter", see
LightDM#Greeter
.
Via xinit
To use Deepin via
xinit
, you will need to add the following to your .xinitrc file.
~/.xinitrc
exec startdde
Known issues
Warning
There are known security vulnerabilites in DDE, reported by developers of the openSUSE distribution to the DDE developers. The openSUSE security team attests Deepin to be "lacking security culture" and does not recommend using Deepin
[1]
.
Configuration
Networking
NetworkManager
is integrated in DDE network administration and is installed together.
Enable
NetworkManager.service
to use it.
Customize touchpad gesture behavior
Deepin does not officially support customizing the gesture behaviors, but it is possible to manually change this by editing the configuration file
/usr/share/dde-daemon/gesture.json
.
For instance, if you want to disable tapping gesture activity, set its action to
none
:
/usr/share/dde-daemon/gesture.json
[
    ...
    {
        "Name": "tap",
        "Direction": "none",
        "Fingers": 3,
        "Action": {
            "Type": "built-in",
            "Action": "none"
        }
    },
    ...
]
To apply the changes, reboot your system or log off and log in again.
Changing default deepin sounds
While this is not officially supported, it is possible to change or even remove the default sounds that are used by Deepin (ex. login sound). Simply replace the sounds in the directory:
/usr/share/sounds/deepin/stereo
Note: If you simply want to disable the sound effects entirely, it can be done from Deepin's system settings (sound section).
Changing system language
The environment variable
LANG
of Deepin can be affected by
~/.dde_env
, and it has the highest precedence at the moment, the
/etc/locale.conf
and
$XDG_HOME/.config/locale.conf
will be ignored if this file exists:
~/.dde_env
# DDE user env file, bash script
export LANG="zh_CN.UTF-8";
export LANGUAGE="";
Troubleshooting
No background after resuming from standby
Because of the way the NVIDIA driver stores its FBOs
[2]
, it happens that after resuming from standby the background suddenly disappears, leaving only a white screen with possibly some color noise on it. The bug appears to be fixed in GNOME upstream, but the Deepin desktop environment still has it.
A possible workaround would be restarting the window manager every time the computer resumes from suspension. A way to do that would be to
create
the following systemd service
/etc/systemd/system/resume@.service
[Unit]
Description=User resume actions
After=suspend.target

[Service]
User=%I
Type=simple
ExecStart=/usr/bin/deepin-wm-restart.sh

[Install]
WantedBy=suspend.target
That executes the following script
/usr/bin/deepin-wm-restart.sh
#!/bin/bash
export DISPLAY=:0
deepin-wm --replace
Once those two files are created in the correct directories, make the script
executable
and
start/enable
resume@
user
Wireless network does not connect
NetworkManager sets the MAC address generated randomly. This was already enabled by default, to disable it add the following lines to the NetworkManager configuration file.
/etc/NetworkManager/NetworkManager.conf
[device]
wifi.scan-rand-mac-address=no
Bluetooth Menu does not show up / work
Start/enable
bluetooth.service
. This service is not enabled by default.
Window shortcuts does not work in dual boot
When home directory is shared in dual boot,
~/.config/kglobalaccels
can lead to strange shortcut behavior and we can try renaming this file to another name.
Bug reporting
Any bugs related to Arch packaging should be reported in the
bug tracker
.
Any upstream related bugs should be reported
here
.
All the Deepin developers will see the bug reports and solve them as soon as possible.
See also
Official Wiki page
Wikipedia article
deepin Github