Apr 19, · "didn't detect a second display" HDMI Windows 10 I see many other postings with this problem, with various answers that do not address it. When the laptop does not detect the external display, there is no way to fix the problem.
Use Display Driver Uninstaller on Windows 10 Solution 11 — Adjust your resolution According to users, this issue appears while trying to project your screen to an external display. Open Device Manager and find your display driver.
And Win 10 has been out a good while now. Win 10 however has decided that there is not an hdmi connection. This may have been true in the past. I took the laptop out of the office, ran it without a second monitor, and Win 10 got that change! The laptop became the primary screen, and we are thankful for that.
Now, however, I return to the office. The laptop seems to check for the second monitor when it is closed and I open it with the monitor connected, but it doesn't always. Once it has become confident there is no second monitor, it will not recheck.
Software has confidence, not hardware, by the way, since hardware only senses, it doesn't decide. It is true that I could uninstall the driver. When I reinstall it, Win 10 will forget what it previously concluded and it will check again. Win 10 needs a way to recognize consistently changes in hdmi connections no matter whether they happen once or daily or even hourly, say when a teacher moves from class to class.
Win 10 needs to run on its most common hardware configuration, and consistently supporting changes in the presence of a second screen is an excellent thing to do.
One workaround I have discovered this week: Buy a second monitor. Scroll down to the Multiple displays section and click on Display adapter properties.
For various PC problems, we recommend this tool. When Properties window opens, navigate to Monitor tab. If your monitor is already set to 60 Hertz, select a different value and then return it back to 60 Hertz. Keep in mind that not all frequencies are compatible with your monitor, so if you want to avoid causing damage to your display, use the frequencies recommended by the manufacturer.
After doing that, you should be able to use your second monitor. According to users, this is a simple workaround but it can help you with this problem. To change your monitor settings, do the following: Navigate to Settings app and go to System section.
Now in the display settings select Show only on 1 option. By doing that the picture will be displayed only on your main monitor. Now change your monitor settings to Extended and save the changes once again. This is a small glitch that can occur, but you should be able to solve it by using this workaround.
Solution 7 — Install Windows updates Windows 10 is a solid operating system, but sometimes you might find a certain bug. Microsoft is working hard to fix all Windows 10 bugs, and the simplest way to keep your PC bug free is to install Windows updates.
By default, Windows 10 automatically downloads the updates in the background, but sometimes you might skip an important update. However, you can always check for updates manually by doing the following: Now click on Check for updates button.
Windows will now check for available updates.
If updates are available, Windows will download them automatically in the background and install them once you restart your PC. After installing the necessary updates, the issue should be resolved completely.
According to users that use dual monitor setup, both monitors work but the second one is always mirroring the first monitor. If you can, try to switch the cables while your PC is running.
According to users, their Project mode was set to Second screen only and that caused the problem to appear. After selecting Extend or Duplicate option, the issue was completely resolved and both monitors started working. We already showed you how to uninstall a driver in Solution 3, so be sure to check it for detailed instructions.
After removing the problematic driver, restart your PC and your problem should be resolved.HDMI Monitor Not Working, or Not Being Detected with Dual Monitors (Two Monitors)
This issue appeared on HP Envy laptop but it can also appear on other laptops as well. Use Display Driver Uninstaller on Windows 10 Solution 11 — Adjust your resolution According to users, this issue appears while trying to project your screen to an external display.If that option is not available, right-click on it and select Uninstall. If your monitor is already set to 60 Hertz, select a different value and then return it back to 60 Hertz. After removing the problematic driver, restart your PC and your problem should be resolved.
Users reported that adjusting the resolution on their laptop and second screen fixed the issue, so be sure to try it. To adjust your resolution, do the following: Right click your desktop and choose Display settings.Jun 10, · Windows 10 doesn't detect my second monitor I just upgraded from Windows 7 to Windows 10 and now my computer only detects one display rather than two. If I click "Detect", it says "Didn't detect another display". When I do WIN +P, I see message "Your PC can't project to another screen". I've been quite fed up with the fact I can't use.
Now locate the Resolution section and lower your resolution. Keep lowering your resolution until the external display starts working.
If your external display is using lower resolution than your PC, you might have to lower your resolution before you can use the second display.Windows 10 Won't Detect Second Monitor - How To Fix [2018 Tutorial]
Simply by closing the laptop lid, your second display will become the main one and the issue will be resolved. After you open your laptop lid, both displays will work without any problems.
If you have this problem on a desktop PC, you might be able to fix it by using a Sleep Mode. Using this feature your PC will turn off, but all your open applications will remain active.
Once your PC boots from the Sleep Mode, both monitors should start working. This software allows you to control various settings, but sometimes the Extended desktop feature might be disabled in Control Center. From there make sure that Extended desktop feature is enabled.
After enabling this feature, the problem should be resolved and both your displays should start working. To fix the issue, be sure that DisplayLink is updated to the latest version. After updating DisplayLink, the problem should be completely resolved.Fix Windows 10 can't recognize second monitor issue
To fix this problem, users are suggesting to change your AMD graphics card settings. To do that, follow these steps: Open Catalyst Control Center.
Select your monitor and locate Image scaling preferences section.
Select Maintain aspect ratio and click on Apply to save changes. After doing that, the problem should be resolved.