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Fail to check for software updates or download new version

In the software upgrade process, failures to detect updates and download new version are usually caused by poor network connection. Please follow these steps to check the network connection: 1Check the network connection of the system In the Windows Start menu, click Settings > Network & Internet. If "No Internet access" is displayed (pictured at right), check whether the network cable is connected or contact your network administrator. 2Check if the firewall blocks the software from communicating over the network On Windows, open the Control Panel, then click System and Security > Windows Defender Firewall > Allow an app or feature through Windows Defender Firewall. In the Allowed apps dialog box, search for your software, and then check if its check boxes under Name, Domain, Private and Public are selected. If not, select these check boxes to allow the Bridge software to communicate through firewall.

Can't use or find Magewell capture device on MacOS

1Is the indicator light on your capture device off? If you find that the indicator light is off, it may be caused by loose connection or hardware defects. Please do as follows: Make sure the card is properly mounted in the slot. Power off your computer before removing or mounting the PCIe capture card. If there is no problem with the cables and interfaces, your capture device might have hardware problems. Please contact us for return-to-factory service. 2(For PCI cards only) Have the firmware and driver been installed? For PCIe capture card users, restart your computer and then go to Download Center on the Maggewell website to get the latest firmware and driver and install them. Enter System Preferences > Security & Privacy > General. If system software from Magewell was blocked from loading, click Allow. 3Can the video capture software find and use your capture device? If the video capture software cannot find or use your capture device, please check the privacy settings of the system: Enter System Preferences > Security & Privacy > Privacy. Click Camera in the left list of the Privacy page, then select capture software to allow it to access your camera. Click Microphone in the left list of the Privacy page, then select capture software to allow it to access your microphone.

Microphone audio is lost when I capture HDMI video from a camera

Many cameras' HDMI signals do not embed audio input from the microphone. Please consult your camera manufacturer to confirm whether the HDMI signal of your camera model contains audio data.

Screen shows "No Signal" or "Unsupported Signal" when I use Magewell capture device

1Check if the resolution of the signal source exceed the processing range of the capture device Please refer to the tech spec of the capture device on the Magewell official website. The highest supportable resolution can be found in the Input Features section. 2Check if the signal source works normally Connect the signal source to other receiving devices (such as TV). If the other receiving devices cannot display videos normally, the problem should come from the source. Or connect your capture device with other signal source. If the capture device works normally, the problem should come from the original source. 3Check the status of cables and interfaces Use the recommended brands of cables or use the Mini Repeater HDMI 4K to enhance the signal. Mind the length of cables. If the cable is too long, the quality of signal transmission will be damaged. For USB Capture (Plus) devices, make sure they are used with the original USB 3.0 cables provided by Magewell. Check if all interfaces are firmly connected. If there are any worn interfaces, use alcohol pads to wipe the interfaces. If there is a adapter between the signal source and the capture device, replace the adapter. If there is a signal splitter, connect the source directly to the capture device. 4Steps for HDMI devices Make sure the signal source is not encrypted by HDCP because HDCP signals are not allowed to be captured according to the law. Reset the EDID. (See How to reset the EDID of HDMI capture device)

Captured video has color distortion problem

1Check the color format of the signal source Check the color format of the video output from your signal source according to the user manual of the signal source. 2Set the supported color formats of the capture device For USB Capture (Plus) Family, download the utility software USB Capture Utility V3, and then refer to this article to add the color format of the signal source to your capture device. For Pro Capture and Eco Capture Family, refer to this article to add the color format of the signal source to your capture device. 3Select the appropriate color format in the video capture software In your video capture software, select the newly added color space and save the settings. Then check whether the color of the video is displayed normally.

Captured video is blurrier than the original video

Follow these steps to troubleshoot problems. 1If the Resolution, Color format and Quantization of the captured signal is consistent with those of the input signal? USB Capture (Plus) Family Open the utility software USB Capture Utility V3. In the Info tab page, view the Video signal format, which consists of the resolution and frame rate of the input signal. In the Video tab page, view the Color format and Quantization in the INPUT section. In the Video tab page, set the Color format and Quantization in the CAPTURE section to the value of the same properties in the INPUT section. In your video capture software, set the Resolution, Color format (if available) and Quantization (if available) of the captured signal to the value of the same properties of the input signal. Pro Capture, Eco Capture Family Call the driver panel of capture card. In the Video tab page, view the Input signal format, Color format, and Quantization in the Input section. The input signal format is displayed next to the Input label, and includes the resolution and frame rate of the input signal. In the Video tab page, set the Color format and Quantization in the Capture section to the value of the same properties in the Input section. In your video capture software, set the Resolution, Color format (if available) and Quantization (if available) of the captured signal to the value of the same properties of the input signal. 2If the captured image is scaled in the video capture software? If video capture software allows users to set the scaling, make sure the scale factor is 100%. 3If the input signal is interlaced signal? USB Capture (Plus) Family Open the utility software USB Capture Utility V3. In the Info tab page, view the Video signal format. If the video signal format contains "p", the input signal is a progressive scan signal; if it contains "i", the input signal is a interlaced scan signal. For interlaced scan signal, open the Video tab page, and then set Deinterlace to Weave, i.e. no deinterlacing. Pro Capture, Eco Capture Family Call the driver panel of capture card. In the Video tab page, view the input signal format next to the Input label. If the video signal format contains "p", the input signal is a progressive scan signal; if it contains "i", the input signal is a interlaced scan signal. For interlaced scan signal, open the Video tab page, and then set Deinterlace in the Capture section to Weave, i.e. no deinterlacing.

When I use the computer's graphics card as the input source, the actual resolution of the output video is different from the resolution I set

To solve the problem, open the control panel of the graphics card, and then set the Scaling to Customize Aspect Ratio.

Errors about uvcvideo module occurs when opening USB Capture (Plus) devices on Linux

When opening USB Capture (Plus) devices on Linux, the following error messages are shown: uvcvideo: Non-zero status (-71) in video completion handler. uvcvideo: Failed to resubmit video URB (-1). uvcvideo: Failed to resubmit video URB (-1). This problem is known to happen in three situations: The computer's power supply module is underpowered. Other devices around the capture device caused interference. When using GStreamer as the video capture software, the Videosink doesn't support Zerocopy. You can try to fix the problem by changing the kernel or plugging the USB port into the rear panel of your computer.

When I record video captured from USB Capture (Plus) devices with OBS, the audio and video are out of sync

Check the usage of GPU and CPU when recording video with OBS. If the values are too high, reduce the encoding parameters. Record a video clip with Capture Express to see if the synchronization issue occurs. In OBS, do not select audio devices in the properties window of video capture device. It is recommended to add an independent audio input device and select the Use Device Timestamps checkbox.

How to deal with audios captured by USB Capture (Plus) devices are all noises

If you are experiencing audio issues while using USB Capture Device, follow the steps below. Check whether the USB Capture Device is connected to a USB 3.1 port on your PC. If yes, please check with your PC brand manufacturer or PC motherboard manufacturer for the latest USB 3.1 updates. If no, or the audio issue remains after the update, please contact us for further information.