I think I'll wait to try the Anker adapter that I ordered before spending even more money on this. Here's one that simply says "Thunderbolt 3" but it's $90.00 (yikes!) When I search on Amazon for "thunderbolt 3 hdmi" the vast majority of the results say USB-C and "Thunderbolt 3 compatible". Supports both video and audio output." They don't sell a "HDMI to Thunderbolt 3" adapter.only one I see on their site is this third-party one which is very expensive and overkill).
#TARGET MAC VGA ADAPTER TV#
And why would Apple sell such an adapter if it didn't work with projectors, which are VERY commonly used with their notebooks? In fact, the product page even says, "Requires an HDMI cable (sold separately) for connection to your TV or projector. Why would the Apple USB-C Digital AV Multiport Adapter work with my 4k (3840x2160) TV but not a WXGA (1280x800) projector? You'd think a 4k display device would require the higher standard. Interesting thought, but that raises other questions if true. However, if I connect the projector to my 2012 MBA using a VGA cable, the VGA-to-HDMI adapter, and the HDMI-to-TB2 adapter, I get a video signal. When I connect the projector to my MBA M1 using a VGA cable, the VGA-to-HDMI adapter, and the Apple USB-C Digital AV Multiport Adapter, I get no video signal. I have both a VGA-to-HDMI adapter (third party) and a HDMI-to-TB2 adapter (third party).
multi-port adapters when hooking to a projector.ĮDIT: Here's another interesting experiment I just did. If I DON'T, then I would be wondering if it's an issue of single vs. I've just ordered this Anker USB C to HDMI Adapter and will report back if I have the same issue with it. a TV that would be causing this?įWIW, I'm also connecting to the same projector via VGA using the Apple USB-C VGA Multiport Adapter and it works flawlessly. Is there something unique to HDMI bus on a projector vs. So the only thing I can think of is it's some sort of incompatibility with the HDMI bus on Epson projectors and the HDMI-to-USB-C adapter. So you'd conclude it must be something wrong with the HDMI bus on the projector, right? No, because it works perfectly fine with both an Apple TV and my 2012 MBA using an HDMI to TB2 adapter. So this would indicate it's neither a faulty adapter nor faulty cable. It works perfectly fine with my 60" LG 4K TV using the same HDMI cables. I've also tried with another Epson projector with the same result.
Well, the output from AGDCDiagnose should be able to prove that Thunderbolt Target Display Mode is not using DisplayPort over Thunderbolt.I've tried restarting (projector and MBA) and using a different HDMI cable.
#TARGET MAC VGA ADAPTER DRIVER#
It would behave like a DisplayLink display except Apple could make a better Thunderbolt display driver than the DisplayLink people can make a USB display driver. I wonder how a Thunderbolt Target Display Mode display looks in ioreg -flw0 and /System/Library/Extensions/AppleGraphicsControl.kext/Contents/MacOS/AGDCDiagnose -a > AGDCDiagnose_a.txt 2>&1? I guess it would not behave or perform like a display connected to a GPU. You would need a PCIe connection to the add-in card and the add-in card would need Apple Thunderbolt firmware. You cannot make this work by including an externally powered Thunderbolt 3 add-in card such as a GC-TITAN RIDGE or GC-ALPINE RIDGE because the Thunderbolt Target Display Mode signal is not just DisplayPort over Thunderbolt (I'm guessing). But a USB-C MacBook does not have Thunderbolt so this will not work. The display should perform as a display connected directly to the GPU of the MacBook.įor a Thunderbolt iMac, use the Apple Thunderbolt 3 to Thunderbolt 2 adapter with a Thunderbolt 2 cable. For a Mini DisplayPort iMac, use a USB-C to Mini DisplayPort cable or USB-C to DisplayPort cable with DisplayPort to Mini DisplayPort adapter.
0 kommentar(er)
