Maybe it's coming from the osx version or the driver of the graphic card. myself alone, with apple on the phone, with apple store genius bar. I spent at least 300 hours on these problems. If anybody can help or give me some news? i am already in discussion with apple for all these topics, but i think it's coming from the graphic card driver or something. Nothing special Written in the console by the way for both problems. I tried to touch some features in the settings but it didnt change anything. Not with the mouse, trackpad, keyboard or rear button. Second problem: sometimes it’s not possible to wake up the mac after long sleep. The problem is coming back after shutting down, restart, or wake up after sleeping.Īll these are non sense, that's why i need expertise from intel. for 1 or 2 seconds.īut more i am using the mac without restarting or sleeping, and the problem disappear. I am losing signal randomly, after 15 minutes, 40 minutes, hours. I tried also a hdmi splitter to the hdmi port of the mac mini, the problem disappeared but it's not a solution for me for two reasons: splitter means duplicate and the sound of my receiver is not the same that the tv (dolby digital,dts.) and also this graphic card should be able to manage multiple display on his own with the hdmi port and the 4 USB-C port on the rear of the machin. This graphic car can handle at least 3 external display in 4k.now i am trying only with two in 1080p.Īlso i tried a HDMI switch A/B connected to the hdmi port of the mac mini.
however, the receiver works great when it's plugged on the mac mini without the full hd television sony plugged as well. I tried not using at all the Yamaha receiver (just for the test), it's working great, i am losing signal on the projector anymore. For me, there is a problem with hdmi management when using multiple display, depending or the display. I tried everything that apple care and apple told me to do. Most part of the time ih happend When watching videos, whatever the video software i am using.
Install again mojave 10.14.2, nothing changed.įormat the hard drive and install clean mojave only. Either the projector, either the full hd tv.Ĭables are fine, i tried many. I am not using both display in the same time. The HDMi signal (for the projector) is going to the Yamaha RXV467 receiver before going to the projector Epson. When i am plugging my two external display, sometimes i am losing signal with a black screen with my projector only. When i am plugging only one display, either on hdmi cable direct or via apple adaptater usb c - HDMI, i have no issues at all with display.
Both were used with old macbook pro without issue for almost 10 years with another graphic card intel HD vintage.