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mgates67
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Joined: Mon Aug 05, 2019 6:10 am

Screen mirroring not working

Mon Aug 05, 2019 6:42 am

I'm trying to mirror my Windows 10 laptop to my Roku TV. It's not working. I've searched this forum and other places extensively, but there doesn't seem to be much information available. I have:

TCL 55R615 Roku TV that is running Roku version 9.1.0, build 4129.
HP Envy laptop running Windows 10 Home 64 bit version 1903, build 18362.267.

All versions are confirmed to be the latest available. I've even tried updating the wireless NIC and graphics drivers. Both the Roku TV and my laptop are connected to the same wireless network. Generally the laptop does not see the TV as an available device and will search endlessly for it. Randomly, it will appear as an available device but the connection will always fail.

What do I need to do to get this working?
 
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atc98092
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Location: Auburn, WA

Re: Screen mirroring not working

Mon Aug 05, 2019 7:59 am

Windows mirroring is hit or miss, usually miss. I've never made it work, although I had no issue mirroring an Android phone. 
Dan
Nvidia Shield, Roku Stick (3600), Ultra (4640), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
 
mgates67
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Posts: 2
Joined: Mon Aug 05, 2019 6:10 am

Re: Screen mirroring not working

Tue Aug 06, 2019 1:46 pm

So, Roku mods, if this is a known issue (and apparently has been for some time) what is Roku doing to fix it?
 
MWDXER
Posts: 367
Joined: Fri Feb 07, 2014 1:21 pm

Re: Screen mirroring not working

Wed Aug 07, 2019 11:47 pm

Roku's screen mirroring, I rarely get it to work. For casting I just use the Cromecast. Much easier.
 
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atc98092
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Re: Screen mirroring not working

Thu Aug 08, 2019 6:00 am

Screen mirroring from a Windows computer is usually more of a Windows issue rather than a Roku problem. Windows has very specific hardware requirements for it to work. I have found the screen mirroring works fine from Android devices, and it's almost impossible from Apple devices. There's just no "standard" for mirroring, so everyone does it differently. If I want my PC to display on the screen, I just connect it via HDMI or VGA connections. Mirroring is just too much of a pain. 
Dan
Nvidia Shield, Roku Stick (3600), Ultra (4640), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
 
trekkeriii
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Re: Screen mirroring not working

Thu Aug 08, 2019 6:32 pm

atc98092 wrote:
 I have found the screen mirroring works fine from Android devices. 

Google's Flagship devices since the Nexus 6 only do Chromecast, not Miracast. I think Samsung Androids do have Miracast.
http://trekkeriii.com/Roku_PHP_list.php
Router - ASUS RT-AC68U
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MWDXER
Posts: 367
Joined: Fri Feb 07, 2014 1:21 pm

Re: Screen mirroring not working

Fri Aug 09, 2019 3:23 am

I have the Chromecast app on both my Win 7 laptop and my old son's Chromebook. It works better on the Chromebook, less delay and not as glitchy.
 
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RokuTannerD
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Joined: Tue Mar 20, 2018 2:37 pm

Re: Screen mirroring not working

Fri Aug 09, 2019 9:05 am

@mgates67 

Does restarting the TV from Settings>System>Power>System restart help clear up the issue and allow you to connect? 

If that still isn't working, and you aren't able to connect successfully, please generate a issue report tracker ID by pressing the home button 5 times, then the back button 5 times quickly. Send me a private message with your Roku account email address, your TV's serial number from Settings>System>About, and include the issue report tracker ID. I'll follow up with you directly to see what else we may be able to suggest. 


Thanks,
Tanner
Tanner D.
Roku Community Manager
 
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atc98092
Posts: 3794
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Location: Auburn, WA

Re: Screen mirroring not working

Fri Aug 09, 2019 10:18 am

trekkeriii wrote:
atc98092 wrote:
 I have found the screen mirroring works fine from Android devices. 

Google's Flagship devices since the Nexus 6 only do Chromecast, not Miracast. I think Samsung Androids do have Miracast.

Yeah, it was a Galaxy S8 that I was using. The battery just blew up on me, so I was forced to buy a new phone. Since my grandkids all have iPads, I had to get an iPhone so they can iMessage me. What we do for our kids and grandkids...  :lol:
Dan
Nvidia Shield, Roku Stick (3600), Ultra (4640), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
 
Chicken
Posts: 137
Joined: Sun Mar 10, 2019 12:34 pm

Re: Screen mirroring not working

Fri Aug 09, 2019 2:49 pm

I was just able to mirror the screen from a Galaxy J7 running Android 9 to a Roku by using the "Smart View" icon on the pulldown notifications menu.  Audio worked as well, I played a short MP4 as a test.
 
StreamerUserDude
Posts: 21
Joined: Wed Jun 27, 2018 1:16 am

Re: Screen mirroring not working

Sat Aug 10, 2019 1:01 am

atc98092 wrote:
Screen mirroring from a Windows computer is usually more of a Windows issue rather than a Roku problem. Windows has very specific hardware requirements for it to work. I have found the screen mirroring works fine from Android devices, and it's almost impossible from Apple devices. There's just no "standard" for mirroring, so everyone does it differently. If I want my PC to display on the screen, I just connect it via HDMI or VGA connections. Mirroring is just too much of a pain. 

Except that Miracast is a standard, built on standards, and not a new one:

https://en.wikipedia.org/wiki/Miracast

"Miracast is a standard for wireless connections from devices (such as laptops, tablets, or smartphones) to displays (such as TVs, monitors or projectors), introduced in 2012 by the Wi-Fi Alliance. It can roughly be described as "HDMI over Wi-Fi", replacing the cable from the device to the display.

The Wi-Fi Alliance maintains a list of certified devices, which numbered over 6,700 as of 9 March 2017"

The fact is, two major device OS makers either never opted in (Apple), or later opted out in favor of their own proprietary protocol(s) (Google) - and both are members of the WiFi Alliance.

https://www.wi-fi.org/membership/member-companies

The standard exists, but so do non-compliance agendas.
 
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atc98092
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Re: Screen mirroring not working

Sat Aug 10, 2019 7:08 pm

Yes, Miracast is a standard, but what I'm saying is that not everyone supports Miracast. It's not a matter of compliance, it's a decision that someone somewhere has made that they would use a different method. This is one area that it would be nice to have a single standard that everyone complies with. But we're dealing with people, and some people are just going to do something the way they decide, regardless how it works for others. 
.
You can look no further than the CEC protocol. So many manufacturers "tweak" their products so they work perfectly between their own products but don't always play well with others. I've been fortunate that CEC seems to work well with my Samsung, Yamaha, Nvidia Shield and Roku devices, but my Panasonic TV demands a certain power up sequence or the TV remote volume buttons won't control my Yamaha AVR. 
Dan
Nvidia Shield, Roku Stick (3600), Ultra (4640), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
 
NYER566
Posts: 1
Joined: Fri Aug 16, 2019 4:02 pm

Re: Screen mirroring not working

Fri Aug 16, 2019 4:11 pm

Screen mirroring was fine until the spring windows 1903 update. I had to reinstall new drivers which is normal. Before the update mirroring worked great. Now almost everytime I want to mirror my laptop to my roku i think its #2 not sure. When it does find my roku it works fine. Then when I shut down my computer and log back on its gone. No mirroring. I have to search for roku again. This is getting to be a real pain in the butt! does anyone have any answers as to why the Roku disappears afer I shut my computer down for the night then Roku is not showing and I have to go through the whole process to discover Roku again. Any help would be great.

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