Nvidia card HDMI audio

  • Hi,
    I have 6th generation skylake PC with nvidia card gt740 this connected to denon AVR dolby atmos, i installed LE on separate HDD and it is booting fine and every thing working fine video and audio for dts formate working ok through pass through, but fir dts-hd after playing movies it take like 2 minutes untill i got sound, and also if i skipped the movies the same issue happen
    Another issue if i played dolby atmos movies it cant play it at all

    i have another mac mini with intel ship and install LE and all this audio formate working fine even dolby atmos
    Do you think if i changed my nvidia card will solve my problem?
    Thanks in advance for help