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1695 posts

Uber Geek

# 199169 7-Aug-2016 14:00
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You can project from one Win10 device to another since the Anniversary update without any particular hassle. (Nathan mentioned this some months ago and I just got time today to check it out)


To my delight, the sound works insta-magically and comes out of the device you are projecting to.


Why is this so great? if you have an ultra portable or win tablet and want more screen real estate you can use project and choose to project as a duplicate or extended. So I can use my SP4 in conjunction with any other laptop, desktop or screen hooked up to another PC wirelessly and use it's monitor even if the monitor device itself (like my dumb tv) doesn't support miracast.


This would be even more awesome if it worked with my Toshiba Tecra r850 which is hooked up to my (too dumb for miracast) TV, but it does work with my Asus laptop which is hooked up to an external monitor. The Toshiba looks like it should work but when I try to download widi software for it, I get a not compatible error. Sigh. I may just switch  my Asus to the TV because it sure would be nice to project from  my SP4 to the TV to use it as a great big extra monitor without cables!


Here is a link on how to do it:




I tried it out by running a Youtube video on my SP4 projected to my Asus laptop (about three years old) which was itself hooked up to an external monitor via a cable.





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10940 posts

Uber Geek

  # 1605866 7-Aug-2016 14:11
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That's interesting. I see it can double as kind of rdp of remote computer with keyboard and mouse.

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Uber Geek

  # 1605895 7-Aug-2016 14:57
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I just really, really want to be able to project to my lounge tv from my SP4; it's the nicest big screen in the house in the sunniest room. I'd love to work in there. Wouldn't you know every computer in the house EXCEPT that one works.



10940 posts

Uber Geek

  # 1605900 7-Aug-2016 15:15
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HDMI miracast will set you back $100 or so.


10940 posts

Uber Geek

  # 1605972 7-Aug-2016 17:14
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Maybe I misunderstood. Every computer you have can cast to the tv except the sp4?

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Uber Geek

  # 1606092 7-Aug-2016 21:27
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gzt: Maybe I misunderstood. Every computer you have can cast to the tv except the sp4?

It's just me being unclear, sorry.

No, I can cast to every computer we have (husbands desktop and my old laptop) except to the one (the Toshiba Tecra R850) that is connected to the tv- which is the only one I really would like to. Oh well.


10940 posts

Uber Geek

  # 1606100 7-Aug-2016 21:41
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I don't know how it all works but I read in passing somewhere that it is a combination of widi and miracast support required.

Widi is an Intel thing and Intel has an automated compatibility check for it:

Edit: includes driver updating if required.

1408 posts

Uber Geek

  # 1606121 7-Aug-2016 21:52
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From what I know, Miracast is only supported on Intel processors with HD2500/HD4000 graphics or later. 


A Tecra R850 with Core i5-2520M HD3000 graphics is no good.


Ironically all the low end processors since Bay Trail support it.




1695 posts

Uber Geek

  # 1606168 8-Aug-2016 06:59
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Thanks to you both, your Googling is good, the links were perfect. Yep, it's Intel HD 3000 on an i5. Been reading the complaints thread and wow that sucks. I should have left it on Windows 7.

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