Hope you found this article helpful and were able to cast your computer/laptop’s screen on a TV. Frequently Asked Questions | More Related To Mirroring Your Windows 10 Screen (2023).Though you are not truly "extending" your display, you can monitor content in the background on your 2nd display. Now, you are casting the content from your other desktop, while independently working on your original desktop. Then, use your Windows + Tab function again and go back to your original desktop you were working on. After you create a new desktop, open Chrome on the new desktop to whatever page you are wanting and cast it through Chrome. If you hold down your Windows key + Tab, you can create another desktop. I didn't like the idea of having a dongle plugged into my laptop every time I wanted to extend the screen. If you are wanting to use your extended display just to monitor something in the background, but you are working on your main screen, I may have a good answer for you, without having to buy any additional equipment (dummy adaptors, etc.). I have seen some answers regarding the VGA monitor port, and forcing your OS to think that you have a second display, but I do not have a VGA monitor port (only an HDMI), so this was not an option. I ran into the same scenario with my laptop. At times, when you are not using (casting to) the second monitor, certain popup windows may try to appear on that side and leave you clueless unless you either re-display the extended desktop or use the Windows + P keyboard combination and switch to "PC screen only".You may experience a slight video lag on the extended monitor I say it is negligible considering the advantages you gain by this feature (you just shouldn't expect high performance screen refresh rates on it!).Some caveats about extending your desktop via Chromecast, from my experience: NOTE - You can also make the Cast button remain on the Chrome browser toolbar always for easier access (otherwise it will disappear later and you'll have to find the feature again hidden under the three-dot menu.) To keep the Cast button always on the toolbar, right-click the Cast button on your toolbar after you've already begun casting per the above steps. You will then be presented with a choice of Screen 1 or Screen 2 which you will cast to the Chromecast device, so choose Screen 2 here and click Share.IMPORTANT: avoid switching steps 4 and 5 around because you can inadvertently cast the wrong source content to your device! Now you can click in the popup menu on the name of the Chromecast device to which you want to cast your screen.Hover over to the bottom of the popup menu and click the Sources button, and from its drop-down list select "Cast desktop" so it becomes checked. A popup menu will appear, but don't select your Chromecast device just yet! Instead, at this point you will choose what source content to cast.After that, proceed to your Google Chrome browser on your PC and click the three-dot menu at top right and select Cast.Then select Extend from the right flyout menu that should appear (this is what will open up the second monitor as an option for you to extend your desktop in the next few steps!).Make sure to hold down the Windows button on your keyboard and press P.Repeat steps 3 -5 a third time and voila! Step 6 is now possible.Īssuming your computer is convinced that it has a second screen attached, then to extend your desktop with Google Chromecast, Repeat steps 3 – 5 again, just to stop the Chromecast.į. Stage as your screen will appear on the Chromecast, just not extendedĮ. Note that step 6 won’t be possible at this Screen by switching its input source to that second HDMI port.ĭ. Confirm that you have a visible extended desktop on your second If using a real HDMI cable, you must plug theĬ. Plug in either a real HDMI cable or a dummy plug into theĬomputer's HDMI port. To convince Google Chrome that there is a second screen,Ī. Sample HDMI Monitor Emulator from Walmart.A machine that I've found does not need an HDMI dummy plug is the HP EliteBook 8470p. Has to do with these ports behaving as analog ports. NOTE: it seems a few PCs actually behave as though a monitor is connected, and won't need a dummy HDMI plug. Here’s where a dummy HDMI plug, “headless ghost”, or otherĭisplay emulator comes in handy if you do not have an actual second Screen in step 6, then you must convince Google Chrome that there is a second CAVEAT: If simply trying the steps below won’t pull up the second
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