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[Q] Will miracast in 4.2 work on my old N7?

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By mcernvall, Junior Member on 30th October 2012, 02:58 PM
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As announced, JB 4.2 will support miracast which allows display mirroring through wifi-direct. I donīt understand whether this feature require certain hardware, and my question is wheter this will work on my 16 GB Nexus 7 when it is updated to 4.2? Anyone know?
 
 
30th October 2012, 04:59 PM |#2  
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Tegra 3 supports it and it uses wifi direct so I'm confident it will be supported.

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2nd November 2012, 08:16 PM |#3  
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I hope that's true. All the hardware indicates it is able to support it, but not necessarily that it will actually be made available. The Nexus 10 doesn't have the option for Miracast, despite having WiFi direct/Android 4.2.
3rd November 2012, 01:45 AM |#4  
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I don't get what all the worry about will it support it. The only hardware thing necessary is does the device have hardware encoding, and this does. Yes the N7 has wifi direct but ANY device could be upgraded to support wifi direct. It's not like wifi direct is some additional hardware on a wifi chip. Any wifi could technically support wifi direct.

So I would be really surprised if this doesn't support miracast. From what I've read the hardware encoder has a big influence on latency (as does the cpu). So one question that I would like answered is, how low is the latency? Movies/browsing etc doesn't really matter, but for gaming.

Has any article mentioned how low the latency is with miracast? This will vary from device to device of course, but even knowing for one device might give a ballpark of what to expect with the n7
3rd November 2012, 02:05 AM |#5  
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I can't believe miracast is not supported by the N10! Mind boggling...

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3rd November 2012, 06:13 AM |#6  
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yes I just read that. Does it not have hardware encoding? The nexus 4 definitely has miracast enabled but not the nexus 10?!
3rd November 2012, 01:54 PM |#7  
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Where is written that N10 doesn't support Miracast? I watched android developers hangout on YouTube a few days ago and if I remember correctly then they told both N4 and N10 support it. When someone asked about N7 they first told no, but then said they don't know for sure. Unfortunately YouTube is down, so I can't double check that at the moment.
3rd November 2012, 02:05 PM |#8  
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Here:

Quote:

Miracast is the Wi-Fi Alliance's standard for wireless streaming of video, and its addition to Jelly Bean made us very excited -- Android finally has a response to AirPlay. Imagine our disappointment, then, upon learning that Miracast isn't supported in the Nexus 10, at least not yet. It is there in the Nexus 4, a perplexing state of affairs that Google wasn't able to give us much clarity on, but it does appear that this is not a hardware limitation, since all the communication takes place over WiFi. If Miracast isn't going to be software-enabled in every Android 4.2 device then we're struggling to see how it's actually part of the OS, and we're definitely feeling let down about its potential to improve the platform as a whole.

'

'http://www.engadget.com/2012/11/02/nexus-10-review/

It's not like the nexus 10 ships with 4.1.2. It comes with 4.2 but yet miracast is disabled?! But he's wrong about pointing out wifi as the potential hardware limitation. Everything has wifi (and could potentially support wifi direct as that is done in software) the hardware barrier is hardware encoding. Does anyone know the details of the chipset the nexus 10 has?
3rd November 2012, 02:21 PM |#9  
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Interesting... Cnet review says it is supported, but they didn't have a dongle to test it.
I believe even the Verge/Google video said it is supported, but again, I can't check that either at the moment. Why is YouTube down when you need it the most?

Does anyone know if Miracast supports audio only? I know that it supports audio and video, but what happens if I want to connect it to my AV receiver and use it for audio only?

Edit: YouTube works again. http://www.youtube.com/watch?v=Z92fwFQntG8 at 56:30 they say that both devices have HDMI and Miracast.

I think the software in review devices wasn't final. Some N10 review devices didn't have user accounts either, but the final software clearly will have that, so I believe its the same case with Miracast.
Last edited by poisike; 3rd November 2012 at 03:12 PM.
3rd November 2012, 06:57 PM |#10  
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Does anyone know if Miracast supports audio only? I know that it supports audio and video, but what happens if I want to connect it to my AV receiver and use it for audio only?

Turn off your display and you have audio only




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3rd November 2012, 07:35 PM |#11  
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Quote:
Originally Posted by WalkSoftly

Does anyone know if Miracast supports audio only? I know that it supports audio and video, but what happens if I want to connect it to my AV receiver and use it for audio only?

Turn off your display and you have audio only




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That's what I want to do, but is it possible? Does the Netgear ptv3000 work if it's not connected to TV?

It is possible that it doesn't allow connections from android device if its not connected to TV. For example Nexus Q doesn't allow streaming YouTube to it if its not connected to TV.

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