I’ve some insights on this topic I wish to share, as a result of many do not notice that older Macbooks and iMacs have alder bluetooth and wifi modules.
The second issue that goes into play right here is HDMI 1.0, 1.1 & 1.2 that are simply variations. 1.0 can go as much as 1080p, 1.1 can stream as much as a lot larger, and I imagine you want a HDMI 1.2 succesful machine to show 4k and such.
The purpose of HDMI variations is usually ignored, however describes the MAX-output your monitor can assist. I’ve HDMI 1.0, and an Apple TV (2) that helps as much as 1080p.
Test what sort of decision your monitor assist, examine the model of your HDMI cable, and examine the decision of your Mac’s monitor. For those who see the apparent “out of bounds decision” in both of those gadgets, this is the reason it can’t make that bridge to steam the decision to start with.
These can solely course of sure bandwiths and speeds, just like the wifi modules solely choose up 2,5ghz, and use 300MB (I imagine), not the 1200MB on 5ghz.
So my iMac 2010 can stream to a tool, however solely as much as 1080p, which my TV will assist for the reason that Apple TV reaches it is MAX, and the TV too. Executed.
Nevertheless it won’t mirror my desktop to my TV, because it makes use of the next decision that the AppleTV or the TV itself will assist. This does not cease me nevertheless.
You modify your monitor’s decision within the show settings proper? Attempt that and match the decision to your streaming gadgets and monitor’s MAX decision.
However I attempted it and it does not yield the consequence you need; to stream your desktop.
Humorous sufficient it does work on a 21,5″ iMac 2011 or 2010; they each have a native-resolution of 1080p and can stream with out issues. However Apple capped the 27″ in all probability as a result of that means you “want” a greater machine.
Airplay additionally does not present within the menu-bar, and I am on an iMac 27″ that has a decision of 2560×1440. Nevertheless it does detect AirPlay in Quicktime and different apps that use it is performance natively.
Merely click on the “share” icon in Quicktime whenever you’re taking part in a film, and you may see you can truly stream to your AppleTV if the decision of the film can truly match on it.
So in brief; you may obtain a 1080p video clip, and a 2k video clip in .mov format, open them with Quicktime, stream them to your machine, and see if my science sticks or makes you sick about Apple’s practices, too.
The 21,5″ has the identical WiFi and Bluetooth specs because the 27″, so it is capped by native decision, not by precise show decision set by the consumer agent.
But the interior decision can be MAX 1080p which is why it did present the menu-bar icon on a 21,5″ iMac, however not mine; the 27″ 2560 x 1440 MAX decision (out of bounds of 1080p) natively to stream.
As a result of I simply use Quicktime to stream sure content material, your desktop won’t for the reason that content material is on high of it, and thus is a a lot larger decision to stream than your HDMI or AppleTV model can deal with.
Plain & easy. AirPlay works with a local decision that it may assist from begin to end by the compounded impact of all it is elements. One on one.