(If not it can be connected to the Mac 3.5mm output as an external speaker. This is designed to clip on to the monitor, get power from the monitor and might automatically get the sound sent to the monitor via the HDMI signal.

See - itor-and-selected-legacy-monitors/apd/52… 5pcs/Lot Audio COMBO Connector For Ausu Dell HP Lenovo Laptop Etc Headphone MIC Jack, PCB To Top H 1.8mm. Whilst normal external speakers could be used I believe it should be possible to use Dell's own 'soundbar' for this monitor. 10pcs New For Dell Inspiron 15R 5537 3537 5547 2-IN-1 Audio Jack Headphone Port Connector Socket Laptop Motherboard. To 'fix' this you need to either use the built-in speaker of the Mac Pro or some external speakers. The Mac maybe thinking it does since typically HDMI displays do. mic and audio jack is avalable in LED and also VGA And HDMI Port is available. So it seems your real problem is the monitor has no speakers. It now also involves installing a patched Apple KEXT as well. This can be 'fixed' via a third-party unofficial KEXT driver but recent macOS versions have now gone even further to make this much harder to achieve. The purpose is that your PC you don’t need long 3.5mm cabling from the actual source (PC) which could be hidden/distanced away and if you have monit. If instead the Mac sends the audio unaltered to output device then that extra set of conversions does not have to take place.Īnother different matter is that on the classic Mac Pro - Apple for some insanely customer unfriendly reason 😠deliberately disable sending audio over HDMI or Displayport. Answer (1 of 5): That is the headphone 3.5mm jack Audio Out (not IN) to connect your speaker/headphone from HDMI/DP audio stream feed from your PC. Apple are presumably wanting to avoid this extra set of conversions. The output device in order to output the signal as audible noise has to convert the digital signal to analogue again, if the output device also has a volume control it might also adjust the analogue wave form again. If being sent on via a digital connection it then has to be converted back to digital. Check if the music file is not distorted when playing without the headphone or connected to a known good headphone. Check if the headphone plug is not showing intermittent connection. Check if the headphone plug is properly inserted into the soundbar headphone jack. In order to alter the volume the original sound has to be first converted to an analogue wave form, it is then adjusted. Headphone jack connected Audio distortion 1. Apple don't say but I believe their reasoning is as follows. monitor, TV or AV Receiver will be responsible for controlling the volume. As far as I can tell from the Dell website the UZ2711 does not have built-in speakers therefore of course you will not get any sound from it.Īpple disable volume control if the interface being used to send the audio is a digital interface i.e.

Dell monitor headphone jack