I have an LG LED monitor and it has a VGA output, I use an HDMI/VGA converter (image) and my PC video card is Radeon R7 360 but the problem is that sometimes there is no video without signal I used two converters of different brands and the same problem, my brother used this video card and the same problem sometimes there is no video the last time it happened I cleaned the video card with spray limp contact and the video did not return, my power supply is good Corsair CV450w
