How to screen mirror my Win 10 DV7 Pavilion laptop to my Samsung Smart TV

[Wonder-Woman]

Hello,

I have a really awesome (old but don't count her out yet) Pavilion DV7 17" laptop and I am looking to screen mirror it to my Samsung Smart TV.  I have my laptop still humming happily like a top.  I have it booted up to its maximum physical limits of 16GB RAM, the original HD is 500GB and only used for the OS and programs, the OS is upgraded to the most recent version of Win10 (I am on the Windows Developer Insider Network - I am a help desk tech and love kicking the tires on new things) and I have an additional second internal HD installed that is 1TB.  My laptop has both HDMI and Ethernet connections.

The instructions on the Samsung Smart TV says I should be PNP with just plugging in an HDMI cable and it should be automatically detected.  When I have plugged the cable in and go to select the source the TV sees the cable and has a "power button" on the screen for that HDMI connection but when I try to tell my TV to turn on that connection source it dead ends to "no signal" on the TV screen and will not pick up my laptop.

FYI I have additionally tried using an Ethernet cable but the TV just looks at the cable like it should be connecting to a router and is not seeing the laptop as a source to share the internet connection and connect to the machine also.

Are there any particular services that can check in the Windows Services to see if I accidentally turned them off?  I run a lean machine on services so since I never intended to use screen mirroring I may have in fact turned something off a long time ago.

Any assistance would be helpful.  I also have a support request into Samsung to get their help.  This seems like it should be a "no brainer" but has turned out to be anything but.  If there are any diags you need run or screenshots please advise and I can get those to you.

Sincerely,

Wonder Woman

[banhien]

@Wonder-Woman 

Please try the old way and hit F4 on your computer to send signals to your TV. If still no luck connect them up before turn on TV then computer.

Regards.

[Wonder-Woman]

Hello,

The F4 key doesn’t do anything except bring up a side panel.  The options don’t function at all.  I’m open to any & all other suggestions.

Thank you

[Wonder-Woman]

Hello, 

I am still seeking a solution to this because the suggestions provided so far have not worked.

Thank you.

[WAWood]

@Wonder-Woman 

If you actually an Insider, then you know, depending on the Ring, it ranges from unstable to outright risky.  I am using the 20H1 latest release (Build 18922) and I would certainly NOT use that on any production PC.  Every new build adds stuff and breaks stuff -- so if something does not work, apart from the Insider forums, you are basically on your own. If you are on the SLOW ring, then you should not be having these problems, but seeing how MS seems determined NOT to build any 19H2 releases, the SLOW ring these days is basically wasting your time.

In Win10, have you checked the Project options in the Action Center?  When you have a second monitor or TV connected, Project should show options for mirroring or extending your primary display.  If the default resolution of the TV screen is not the same as your laptop, that can cause display problems on the secondary screen.  I have my secondary set at 125% of the primary -- that seems to give the best resolution on the TV.