This seems to be an old issue, but I just got an LG OLED55C7P TV and I am trying to screen share my Surface Pro 3 to it. I read all of the usual threads and removed and restarted to replace drivers, tried to update drivers. None of this seemed to work. The TV knows a Surface is trying to connect and the Surface sees the TV but all I get is "cannot connect" Any guidance appreciated. Thank you.
What you need is something like this...works with my SP4 Pro....it connects HDMI and USB in the back of the television.....the HDMI connection number determines what channel you need to tune the input selection to.
Computer Type: PC/Desktop System Manufacturer/Model Number: Self Built OS: W10 Pro + W10 Preview CPU: i7 Hard Drives: Dual swop 2.5" SSD Hard Drive Rack. Internet Speed: 385mbs Other Info: Surface Pro 4 i7. +
MSI GE 70 i7 super raid 0 (3 drives)
Computer Type: Laptop System Manufacturer/Model Number: Surface Pro 4 i7 OS: W10 Pro
Computer Type: PC/Desktop System Manufacturer/Model Number: Self Built OS: W10 Pro + W10 Preview CPU: i7 Hard Drives: Dual swop 2.5" SSD Hard Drive Rack. Internet Speed: 385mbs Other Info: Surface Pro 4 i7. +
MSI GE 70 i7 super raid 0 (3 drives)
Computer Type: Laptop System Manufacturer/Model Number: Surface Pro 4 i7 OS: W10 Pro
We may be moving closer. After installing the above, It now connects (sometimes) and says "duplicate" but nothing from the Surface shows on the TV screen.
Read post #2.....ie the port number that the HDMI is plugged into determines which input channel you need to tune into on your TV.
On your TV Commander you should have an AV Input....pressing on it reveals all available....you need to tune as per fitted HDMI.
Computer Type: PC/Desktop System Manufacturer/Model Number: Self Built OS: W10 Pro + W10 Preview CPU: i7 Hard Drives: Dual swop 2.5" SSD Hard Drive Rack. Internet Speed: 385mbs Other Info: Surface Pro 4 i7. +
MSI GE 70 i7 super raid 0 (3 drives)
Computer Type: Laptop System Manufacturer/Model Number: Surface Pro 4 i7 OS: W10 Pro
OK I do NOT have the adapter you speak of. The LG TV has a selection called "screen share" which is supposed to work much like Apple air play mirroring. But after looking at the LG site Screen Share with Windows 10 - Page 2 - LG webOS Smart TV Discussion - LG webOS it seems this is a common problem. Sorry for the confusion.
Update: Contacted LG support and they are braindead. I assume perhaps something in defender or firewall is blocking the connection because my surface sees the TV
First you say you have an adapter, now you say you don't....difficult to help you without knowing the facts
To do a Miracast you need the adapter as stated in post #2.
Your post #8 is asking "Where is my device"?.....ie:- Wireless display adapter.
Computer Type: PC/Desktop System Manufacturer/Model Number: Self Built OS: W10 Pro + W10 Preview CPU: i7 Hard Drives: Dual swop 2.5" SSD Hard Drive Rack. Internet Speed: 385mbs Other Info: Surface Pro 4 i7. +
MSI GE 70 i7 super raid 0 (3 drives)
Computer Type: Laptop System Manufacturer/Model Number: Surface Pro 4 i7 OS: W10 Pro
No additional adapter should be needed, the TV has built in screen share which I believe it does wirelessly.
I am of the opinion that Windows firewall may be blocking this.
Sorry for that confusion, but in post#8 I am trying to connect to what is shown "LG WebOSOLED55C7P"
I have talked to LG rep at Best Buy and contacted LG support who give these instructions:
1. Press the HOME button on the remote control and open the Screen Share application at the bottom of the screen.
2. Once the application loads, the SCREEN SHARE screen will be displayed.
3. Open the WiDi application from your desktop or Start menu and click Connect on your model.
4. After a moment, the TV will prompt you with a PIN code. You’ll need to enter this in the app exactly.
5. After the PIN has been entered, click CONNECT. In a few minutes, your PC display should be extended to/or mirrored on the TV.