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'''Q: Why PiKVM-A3/A4 does not show the video only display <span class="tb_red">No Signals</span>?'''
A:
* Double-check that the video capture device is connected correctly and tightly. For the CSI bridge, this should be exactly the camera port;
* Some laptops do not output any signal until you switch the output (usually via the FN + and an F5 key on the keyboard).
* Your computer may have turned on sleep mode for the monitor. Move the mouse to turn it off.
* If your desktop only has a VGA display port, there may be no video signal when you use <b>VGA to HDMI adapter</b>, and there is no way to solve this; However, you can try to lower the resolution and restart the PC to test, but the probability of success is very low.
* You can post a issue ticket at [https://geekworm.com/community/forum/topic/78220/pikvm-faq Geekworm forum] or email to us (support@geekworm.com) and attached your installation pictures or videos to get some help.
* Blog sharing for reference: https://www.andysblog.de/kvm-over-ip-pikvm-als-bausatz
'''Q: Why PiKVM-A3/A4/A8 does not show the video only display <span class="tb_red">No Signals</span>?'''
A:
# Please check the hardware connection. Double-check that the video capture device is connected correctly and tightly.
# Make sure you use the original HDMI port. If your desktop only has a VGA display port, there may be no video signal when you use <b>VGA to HDMI adapter</b>, and there is no way to solve this; However, you can try to lower the resolution and restart the PC to test, but the probability of success is very low.
# Change the HDMI cable to test.
# Test the X630 separately to check if there is HDMI output.
# Some laptops do not output any signal until you switch the output (usually via the FN + and an F5 key on the keyboard).
# Your computer maybe enter sleep mode, please exit sleep mode.
su root
#default password is root also
==References==