Windows 10: No display number

Hi. I have an HP notebook and wish to display screen on tv. When I plug in HDMI cable, the display appears on tv, but notebook display goes black. When I go into display settings there is no display number showing so I cannot select 1/2. It did display originally but some setting I altered made it disappear and now I don't know how to get it back. Any help please?

:)

 

no number display on X3-02

It seems the Caller ID service is not activated.. Contact your Operator.. There may be extra charge for this service..



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no number display on X3-02

hi,

I recently purchased an X3-02 and im having an issue with number displays. When a number that is not saved within my contacts calls the handset, it displays 'call' and once the call has finished and a missed call alert appears it displays the number as a
'no number'. Is anyone familiar with this issue and can anyone suggest how i can rectify this problem??



Thanks

 

Go to "Settings" > "System" > "Display". There should be a "Multiple Displays" option. Choose "Duplicate these displays". There also is most likely a function key on the laptop (mine is on the F8 key) which shows two small screens on it, and pressing that allows you to select the laptop display, external display, or both. Cycle through that to get both displayed.

JohnD

 

You can also try the Windows Key + P as a shortcut to the display options.

 

@bl44

Take a look here. Looks almost identical to your issue.

*Arrow Laptop screen goes blank when connecting HDMI cable ? ? ? [Solved] - TV - Laptop Tech Support

I had the same problem not an IT tech but was able to do it. I right clicked on the desktop 2. go to graphic properties 3. Click advanced mode 4. Click on multiple display then select clone. After doing this both my laptop and tv were showing the same info. Previously once my HDMI cord was plugged in my laptop would turn black and he TV only was displayed. Now after taking these steps I can now see both screens.