Stable connection of 4K monitors via HDMI - TUXEDO Computers

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Stable connection of 4K monitors via HDMI

    The Pulse 14 & 15 has problems with the stable connection of 4K monitors via HDMI. This manifests itself in a flickering picture. The behavior was only observed in mains operation because the device needs more power here.

    After extensive testing, a high-quality HDMI 2.1 8 k specified cable with a maximum length of 0,5 m can remedy this problem. The following features are helpful:

    Connection and cable type: HDMI


    • 8K support at 30Hz (without DSC) and up to 120 Hz with DSC.
    • Bandwidth up to 48 Gbps
    • Supports 16 bpc or 48 bits per pixel
    • Perfect for all HDMI devices such as 4K and 8k TVs, PlayStation 4 Pro, XboX One X, 4k Blu-ray players
    • Supports ARC (Audio Return Channel)
    • Transmits all digital audio formats such as 2.0, 2.1, 5.1, 7.1, DTS-HD Master Audio, Dolby TrueHD, Dolby Digital, DTS, SACD.
    • Cable diameter: 7.5 mm
    • Color depth: 4k @ 8 bpc (bits per color) | 4k @ 12 bpc

    Here is the link to our tested product:


    In addition, we have developed the so-called "Chroma subsampling" and made it controllable via the TUXEDO Control Center. It can be found under Settings Chroma subsampling. Some 4k displays have more than one "60Hz" mode, of which usually not all support "Chroma subsampling". If "Chroma subsampling" does not work with the default 60Hz mode, please select 59Hz mode via the display settings. Here you can find some more information about that: TUXEDO Control Center 1.1.0