Documentation for Axxon One 2.0. Documentation for other versions of Axxon One is available too.

Previous page Supported versions of Linux OS and PostgreSQL  Limitations of Axxon One in Linux OS Next page

On the page:


Problems with installing the Axxon One Client

Sometimes when you install the Axxon One Client, you can have problems with packages, specifically with incompatible versions of mono packages. By default, version 6.8 is installed, but version 6.4 is required for Axxon One to work. To resolve the problem, do the following:

  1. Completely remove mono packages by running the commands:

    sudo apt purge mono* libmono*
sudo apt autoremove
  2. Run the command again to remove all dependencies:
    sudo apt autoremove

After that, you can repeat the installation of the Axxon One Client (see Installing the Axxon One Client in Linux OS).

Problem with displaying a dialog box or a drop-down list

In some cases, when you change the configuration of objects for which you need to set a location or select a value from the drop-down list, when you click on the button to select a location or list value, they do not open.

Note

In fact, the location selection window or a drop-down list are opened outside the interface shell, and therefore are not visible to the user.

To resolve this problem, select a different desktop environment and restart Axxon One. For example, use Gnome Classic instead of Gnome for Debian 11.

Peculiarities of detection tools operation on NVIDIA GPUs in Linux OS

By default, the Nouveau driver can be installed in Linux OS. This driver does not guarantee stable operation when using NVIDIA graphics cards for decoding Axxon One detection tools (see Detectors).

To resolve the problem, you need to install the current graphics card driver from the official NVIDIA website and run the command in the terminal:

nvidia-smi

If the operating system uses the installed driver to work, the driver version will be displayed. Otherwise, if the current driver is installed, but the operating system uses the Nouveau driver, you need to add it to the exclusions list and restart the computer. Below is an example of Ubuntu commands to add the Nouveau driver to the exclusion list:

sudo bash -c "echo blacklist nouveau > /etc/modprobe.d/blacklist-nvidia-nouveau.conf"
sudo bash -c "echo options nouveau modeset=0 >> /etc/modprobe.d/blacklist-nvidia-nouveau.conf"

After restarting, the operating system will use the installed NVIDIA driver.

Problem with incorrect CPU load when decoding on Intel GPU in detection tool configuration

When enabling decoding on Intel GPU in detection tool configuration, the AVDetector and Decoder processes may cause incorrect CPU load. To solve this problem, do the following:

  1. Change the package configuration using the command:

    sudo dpkg-reconfigure axxon-one-core

     

  2. In the groups selection dialog box, set the checkbox next to the render group.

Peculiarities of database operation when the PostgreSQL service is stopped

If you stop the PostgreSQL service and then start it, the EventDatabase won’t connect to PostgreSQL until the service is restarted manually.

To restore the database operation when manually stopping the PostgreSQL service, you must manually restart the EventDatabase service using the command:

  • via service:

    service axxon-one-db restart

  • via systemctl:

    systemctl restart axxon-one-db.service

You can also restart the device to restore the database operation.

  • No labels