Koodo Reader is an e-book reader that supports multiple formats and has a clean and beautiful interface. However, on the Deepin v23 beta version, it fails to function properly regardless of whether it is installed from the Spark Store or the official open-source deb package. The following method successfully resolved the issue.

Error Symptoms

After installing Koodo Reader, desktop or start menu program icons do not generate correctly. It can only be started via the command line, which returns an error:

ERROR:browser_main_loop.cc(1409)] Unable to open X display.

Solution

Declare the variable:

export DISPLAY=":0"

Start the command:

koodo-reader --headless

Note: Other similar issues found online suggest adding the --disable-gpu parameter, but in practice, this causes the error ERROR:gpu_init.cc(441)] Passthrough is not supported, GL is swiftshader.

Successful startup:

Further Issues

After running for some time, additional errors may appear when multiple GPU threads are started:

[61680:0911/180526.544246:ERROR:sandbox_linux.cc(374)]InitializeSandbox() called with multiple threads in process gpu-process.

(koodo-reader:56666): Gtk-WARNING **: 17:48:04.362: Could not load a pixbuf from icon theme.

These errors do not affect usage for now, and I will update with solutions later if found.

Creating a Shortcut

Create Koodo.desktop in the ~/Desktop directory:

touch ~/Desktop/Koodo.desktop

Enter the following content:

[Desktop Entry]

# Shortcut name

Name=Koodo

Name[zh_CN]=Koodo

# Icon path

Icon=/persistent/home/MyHost/package-script/template/256x256.png

# Program path

Exec=koodo-reader --headless

Terminal=false

Type=Application

Categories=Application

Icon