Computer camera black screen how to do

Camera in the computer application is very extensive, we can use the camera to take pictures, but also through the camera with friends and relatives to see each other, greatly facilitate our network life. But in the use of the camera will also encounter a variety of problems, the following summary of the author of a variety of cameras can not use the fault and solutions, I hope to encounter similar problems of friends have a reference.

　What about the camera's black screen

How can a laptop camera be solved?

Laptop camera How to open Win7 Laptop camera open method

　　One, Win7 camera can not be used

Symptom: The camera can be used normally under Windows XP system, but it can't be used after replacing with Windows 7 system, the camera itself is no drive product, although it can't be used but can find the device in the system. Excuse me, what is the reason?

Expert answer: drive-free camera, it's in the chip, has integrated the Windows driver. If your camera doesn't have a Windows 7-integrated driver, your webcam won't work. Windows 2000/xp/vista drivers are not available in Windows 7 (WWW.PC841.COM). Here's how to fix it:

To obtain the latest camera chip firmware from the manufacturer, if the latest firmware program supports Windows 7, you can simply re-upgrade the camera chip firmware to resolve it.

　　Second, the computer camera can not be used

This behavior can be two reasons, one is that your webcam driver is not properly installed, and the other is a hardware failure on your USB interface. Currently the Windows Xp/vista,windows 7 operating system has built-in most of the camera drivers, but due to the rapid product technology, some new camera may have to reinstall their own drivers to use, Therefore, it is recommended that you first install the camera in the package you purchased the driver, see if you can solve the problem.

If there is no problem with the driver, the USB interface may be faulty. First you switch the camera to a USB socket connection, to see if it can be used normally, if the other slots can be used to indicate that your original USB slot has a problem, if not, it may be your webcam USB interface problems, recommended to repair or replacement.

　　Third, the computer camera can not take pictures

Today, bought a new camera, loaded with video, but can not take pictures, with the old to take pictures, what is the reason ah?

Workaround one: It is recommended that the camera software be reinstalled. Go to the camera official website to download the driver, and install its corresponding camera software, you can take pictures.

Solution two: Click start → run → input regsvr32 quartz.dll→ Enter, solve the problem!

Note: Quartz.dll is a DirectShow library file in DirectX, which can be used to resolve most streaming media playback problems (the decoder is not found when streaming media is being played). Uninstall Storm video and other network players.

Teach you how to simply disable the camera on the computer four, laptop camera can not use the symptom: My notebook has a webcam, has been no problem, but today, the installation of the operating system, with the Ghost XP SP3, installed after the discovery of the camera screen is black, do not know how to solve, please pointing!

Experts answer: There is a problem with the driver, the general ghost version of the operating system is intelligent identification driver, as long as the chip model is almost the same as it will automatically put on you, and the laptop with the camera is generally different from the market, the driver of the problem is taken for granted.

　Workaround:

1. Look at the brand and model of your notebook.

2. Go to the official website of the notebook computer brand.

3. Download the driver for this model laptop camera.

4. Reinstall the driver, restart the computer, solve the problem.

　Five, the notebook computer built-in camera can not be used for reasons and solutions

1. Uninstall your original driver

Uninstall method: Right-click on "My Computer"-"Properties"-"Hardware"-"Device Manager" or press CTRL+F1 directly, then turn on "Universal Serial Bus Controller" and remove the "USB Root Hub" below.

There is also the "Add Remove Program" to open the "Control Panel" has no camera applications such as vm301 uninstall the program.

2, then reboot, after reboot will find new hardware, then do not choose Automatic installation, then click "Next", and then "search floppy disk, CD ROM" hook, the other hooks are removed. And put on the disc, do not install the driver from the CD. Let the system search automatically (WWW.PC841.COM). This will allow the installation to succeed.

Drivers are not easy to install due to reasons or difficulties in installing drivers during the update process. Currently on the market there is a clone operation system, which integrates the middle Star micro-version and through the WHQL driver, when the user installed a new camera or update the latest driver, the camera does not work properly.

Method One, automatic unloading method

Step one, click on the Start menu corresponding to the driver's uninstall uninstall, (it is possible that the uninstall function has been destroyed, then you can install the new driver for the anti-installation, the system will first uninstall the old driver, the same can achieve the purpose. )

Step two, select the following executable file in the attachment before the new driver installation: For_xp_me_98.exe for Windows xp/me/98 for_win2k.exe for Windows 2000

(Note: The tool requires that the default path for the system is C-drive, which, under the Windows ME/98 operating system, shows that the system is clean and that the tool does not compromise the installed drivers)

Step three, install the new driver.

Method Two, Manual unloading method

Step one, in My Computer-tools-Folder Options-view to select hidden files and folders as "Show All Files and folders". Then go to the C:windowsinf folder to have all the OEM files (such as oem0.inf,oem0.pnf;oem1.inf,oem1.pnf ...) Cut and transfer to another directory to save or manually delete the corresponding OEM file for the camera

Step two, after completing the above steps, plug in the USB camera, then the computer will find new hardware and pop-up driver information, select Cancel, then right-click on My Computer, select Properties, in the popup System Properties interface, enter the system Properties-hardware-Device Manager will have an exclamation point of the PC Camera right-click Uninstall.

Step three, remove the camera and start installing the new driver.

　Workaround for the second phenomenon above:

Step one, the clone operation system is to store the camera driver by default under the C:windowsdrivercamera301p folder, when you click on the new camera Drive CD installation, the system will not be prompted to already have a camera driver. To uninstall this driver, please find and delete this folder;

Step two, first install a new camera driver, and then plug in the camera loading hardware, after the installation is completed after restarting the computer can be used normally;

Step three, do not need to repeat the above two steps, directly click on the new disc to install the latest driver, plug in the camera system detects the new hardware, and automatically complete the hardware driver loading;

Step four, enter into the Device Manager, you can see the image processing device has been successfully installed, but when you open the "AMCAP" preview image, there will be no preview, white screen, black screen phenomenon;

Step five, the right mouse button on the image processing device "Vimicro USB PC Camera (ZC0301PL)" Update Driver, the dialog box appears after selecting "from the list or designated as the location of the installation;

Step six, select "Do not Search" and go to the "Install from floppy" interface.

Step Seven: Click Browse, point the path to the "Usbvm31b.inf" under the drive CD directory or the latest driver directory

Step 8:1 Click "Next" to complete the driver installation.

　VI, Webcam QQ can not be used

First, open any dialog box. Find the top of the dialog box, the other side of the nickname and a row of buttons under the signature, as shown below.

Click the arrow in the image above. Remember, it's an arrow, not an icon (the arrow is actually an option). When turned on, the following key faces appear as shown below:

　QQ video camera start-up interface

Find the vertical text on the right side of the image above. Find the option under "Please select your video device" below the text, (only one image, and only the option you can choose), two options are displayed, respectively: "Disabled", "USB Video Device".

　　Select a video device

Switch to "USB Video device" to make the image appear, click OK. If it's still dark. You can change the picture quality by clicking on "Quality adjustment", or go to the Device Manager to see if there is a problem with disabling the video device or driver.

　Seven, the camera can not be used, common questions and answers:

1. Camera Not available: Can't find the camera

Symptom: The computer does not detect the newly installed USB camera.

Expert answer: Check the operating system first, then check the BIOS, USB interface and installation error.

The USB interface is supported by Windows 7/vista/xp/2000/2003/2008. The USB device must be active in the motherboard BIOS setup. If these methods are not valid, try connecting the USB camera to another USB port. Of course, it is possible to install the wrong driver or the wrong device, you can view the system device and reinstall the driver again.

　　2. Camera Not available: black screen or white screen

Symptom: When using the camera, a black screen or white screen appears when the image frame pops up.

Expert answer: This is due to check the software setup improper, this problem may have to go through several attempts, you can refer to the software troubleshooting instructions.

　3. Camera not available: Pre-display the image of the light is not normal

Symptom: A part of the camera video pre-display image is too dark or too bright.

Experts replied: Should start from the use of the environment and the intake of objects, such as removing light source or increase the brightness of the object. Then adjust the brightness and contrast the background.

4. The camera cannot be shared with other video input devices

Symptom: After the camera is installed, the camera is mounted. So I don't know which device is working.

Expert answer: When using a variety of video devices, the computer uses the default device. However, the default printer cannot be set up as easily as a print device in Win 9 x, and there is no simpler way to determine the default appliance. So, the best way to do this is through a series of steps to choose one. The specific way to make a video camera driver effective is: Open the "control Panel → multimedia → video → device", open the "Video intake Device" list, double-click the name of the camera, open the dialog box, display the camera properties, and then as required to make the driver valid on the line.

　　5. The camera cannot be shared with a digital camera

Malfunction: The camera cannot be used as an input device with a digital camera.

Expert answer: Some cameras with this driver software, videofor windows (i.e. Windows video) and direct show Device Driver (that is, directly display and set the driver), it for the digital camera, with the system of other devices (including the camera) Together as a universal video input device. So, just install a camera software.

　6. Color anomalies in video pre-display images

Fault phenomenon: A new purchase of video camera pre-display image color is not normal, after a period of time but can return to normal.

Expert answer: The ordinary camera, need to manually white, but the camera can automatically adjust. Generally wait for 20-30 seconds, the system's Autowhite (auto-white) function will be automatically corrected or balanced.

　7. Camera Not available: Flower screen

Symptom: A flower screen appears when using the camera.

Expert answer: First check the driver installation and possible device conflicts. Check if the camera model matches the driver of the camera. You can also change the video card test because the camera may not be compatible with the video card or the display driver. It is also possible that the driver is not installed correctly, and if you cannot resolve the problem by upgrading the driver for the video card, you can only change the video card.

8. A camera that used to work on a desktop. , it's not normal to connect to a notebook.

Experts answer: the camera and video card is the most prone to conflict, after the problem, in addition to looking for the camera itself, but also to check the video card, try to reduce the speed of graphics cards. The method is: on the desktop with a single point of the right mouse button, select "Properties → settings → performance", the hardware acceleration from the end of the last gear, to see if it can solve the problem. If you can, gradually improve the grade until you find the right balance point to solve the problem.

　　9. Camera is not available: Image display speed is slow

Symptom: When using digital camera to surf the internet, the image displayed on camera is too slow.

Expert answer: This is because the website is slow or your internet speed is too slow, can try to change a website or use 4-8MB ADSL a person to surf the net.

10. Camera is not available: camera speed is slow

Fault phenomenon: The newly bought camera installed on the Internet, I feel the display speed is too slow, I use the 4MB bandwidth ADSL, the result is still very slow. Test the camera when not on the Internet, and find that the image is also very slow.

Expert answer: This phenomenon is due to computer performance is too low, can change a graphics accelerator card, if not, you have to upgrade CPU, memory, motherboard and video card, and even new computer.

Tip: About the laptop camera can not be solved, we should have found a way to solve the problem.! If you have better suggestions and tips, please feel free to contact us via feedback!