"this app needs permisssion to use your camera"

It is better to have full 'make model (what it is)', but we can just guess instead!

Use your camera & microphone - Computer

Google Help https://support.google.com > chrome > answer
Change a site's camera & microphone permissions · In the dialogue, select Open preferences. · To enable camera or mic permissions: Camera: Click Camera and then ...

Manage app permissions for your camera in Windows

Microsoft Support https://support.microsoft.com > en-us > windows
Select Start > Settings > Privacy & security > Camera, then make sure Camera access is turned on. This setting lets any user on the device choose if they want ...

Webcam Test

Webcam Test https://webcamtests.com Test your webcam online to check if it is working properly and find out useful information about it.

‎Check Webcam · ‎Webcam Mirror · ‎Webcam Drivers · ‎Webcam Recorder

Open the Camera in Windows

Microsoft Support https://support.microsoft.com > en-us > windows
To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras ...

Step one: "Screen overlay detected" fix

Find you what apps have permission to draw over the screen. On a non-Samsung smartphone, follow these steps:

• Open the Settings
• Tap the magnifying glass at the top right
• Enter the search term "draw"
• Tap Draw over other apps
• Alternative route: Apps> [gear icon]> Draw over other apps

For Samsung users:

• Open the Settings
• Then Applications > Application manager
• Press on More > Apps that can appear on top

Step two

You will find yourself in front of a list of apps that have permission to use floating buttons or other screen overlays. Now you need to identify the problem app and temporarily deny it permission to draw over the screen. Here is are some pointers on how to identify the app that's causing trouble:

• Do you see an app bubble on your screen? If do, this app is almost certainly the cause. Either you hide the app bubble or disable the app in the list
• Do you have an app installed that changes the colors on the display or adjusts the brightness?
• Reportedly, Clean Master can be a trouble maker. If you see Clean Master in the list, disable it
• If there's no obvious cause, disable everything

Step three

Now you can try launching the app again, and it should request permissions without the "Display overlay detected" error getting in the way.
For Samsung users: We have also received a report that suggests the one-handed keyboard setting could be the root cause. Deactivate it by going to Settings> Advanced features > One-handed operation.

Step four: reactivate screen overlays

In order for the app(s) that you have disabled in step two to work again, you need to re-enable its overlay permissions. If you turned off all apps, it might be worth considering only reactivating those apps that you actually use.
This is a rather inelegant workaround, but it's the best we have until Google makes the necessary changes to prevent app overlays from interfering with permission dialogues.
Has this guide helped? If you are still experiencing the error after following our guide, leave a comment, so we can try and address the problem.

What phone model do you have with which service provider?

Motorola Support

Dear friend,
Try to Repair Permissions on your Mac.
Go to Applications, Utilities, Disk Utility, Fist Aid, select your partition under your hard drive, and click Repair disk Permissions.

Check your Drivers relative to the camera you are using. Install the communication program that came with the camera and do a full setup. Check you Facebook and make certain you have permission to open/close/update/upload data to the site.

Watch Movies Online Free, Watch Free Movies Online, Watch Movies Online Without Downloading,

Cyber-link You cam is a software. This could be an issue with your Laptop Camera hardware or Camera Drivers are not installed or need to be updated.

Check your Camera by opening up Google chrome.
copy n paste "https://turncameraon.com/"
It may ask for permission, Please click allow.
If you see that the camera is functioning, then you may need to reinstall the Skype if not, reinstall the camera drivers or replace the Hardware.

The first place to look is your permissions. Open your utilities folder in your applications folder and launch **** utility. Click on your hard drive icon and click the repair disk permissions button. It may take a few moments to run. That might solve your problem.

If that does not solve the problem. Open library/preferences/Quark. Move the pref' doc in that folder onto you desktop (don't trash yet) try relaunching the app. If still not working trash the pref' and try again.

If all that fails I'm afraid you'll have to re-install the app'

try download this driver and put it in.Not to worry about design for HP and all stuff.Download and install
http://www.downloadsource.net/d16952/HP-Pavilion-Webcam-Driver-Windows-Vista-x32-x64/
takecare.

For installin gthe avg 8.0 check the following:
1. Latest Service Pack for your OS
2. Check that the local disk c: is having free space
3. See that you had min. 128MB RAM

Let me know if your problem is solved and rate me as FIXYA!