AstroDMx Capture – Known Issues

Raspberry Pi5 and the Official 64-Bit operating system.

There appears to be a problem with the official Raspberry PI 64-Bit operating system and the Raspberry Pi5 which stops AstroDMx Capture from starting. If you are affected by this problem, please see the following link:

Raspberry Pi5 / 64-Bit OS fix

This fix is not needed if you are using a Raspberry Pi4 or any other Linux distributions.

    Version 2.0.2 – Daylight Saving and Time zone bugs

    There is currently a bug caused by incorrect handling of daylight saving and other time zone issues. Rise, Set and Transit times are inaccurate proportional the user’s UTC offset. This will be corrected in the next version.

    INDI Cameras

    The INDI camera implementation should be considered to be a “work in progress”. Currently, there are a number of limitations and known problems.

    For maximum stability and fast frame rates, it is recommended to connect cameras via the native implementation. As all INDI functionality can be used independently, it is possible to use the mount control functionality with a camera that is connected using a native implementation.

    The INDI camera implementation will be improved in a future release.

    ChromeOS

    It appears that the latest updates for ChromeOS have broken USB3 camera support for some camera types. Our tests show that if a USB2 cable is connected to a USB3 camera then the camera appears to work correctly. If a USB3 camera does not stream correctly in ChromeOS then using a USB2 cable may fix the problem. We will update this article when more information becomes available.

    Currently, the upcoming SVBONY SV505C camera does NOT work in ChromeOS.

    Due to limitations associated with the virtualisation environment within ChromeOS, it is not guaranteed that any camera will work reliably under ChromeOS. It is advantageous to use a relatively powerful Chromebook when running AstroDMx Capture. Entry level Chromebooks lack the required power to run Linux in the virtual environment as well as the extra workload introduced when using USB pass-through.

    QHY Cameras – All versions with the latest QHY SDK

    There seems to be an issue with the latest version of the QHY SDK which sometimes causes a segmentation fault. This issue has been observed with the QHY5L-II range of cameras on both x86-64 Linux and the Raspberry Pi.

    If the camera’s connection is interrupted, for example being accidentally disconnected while the camera is streaming, then AstroDMx Capture sometimes generates a segmentation fault and then closes. This issue will be reported to QHY and a maintenance release will be made once a new SDK is made available.

    In order to reduce the possibility of a segmentation fault, it is best to use a high quality USB cable that makes a good connection to the camera hardware.

    Ubuntu 22.04 – All Versions of AstroDMx Capture

    Updated: 30 April 2023

    Important: This issue has been fixed in version 1.4.x.x for Intel builds but the problem is now evident in the ARM64 builds. This will be fixed in the next version.

    I have had a number of bug reports associated with running AstroDMx on Ubuntu 22.04. I have tested this and can confirm that AstroDMx does not start under this configuration. It is, however, very easy to fix this problem.

    This particular problem is caused by Ubuntu 22.04 providing newer dependencies which are incompatible with some dependencies supplied by AstroDMx. The dependencies in question are those that provide specific functions in the standard C++ library.

    In order to run the software under Ubuntu 22.04, use the following procedure.

    cd /opt/AstroDMx-Capture/lib
    rm libstdc++.so.6
    rm libgcc_s.so.1
    

    Once the above procedure has been completed, AstroDMx should start normally. This problem will be fixed in the next release of the software. The latest version of AstroDMx Capture can be downloaded from the main downloads page.

    As usual, please feel free to contact me directly if you need further help.