Review on 🖥️ Eyoyo S801C: Compact 8 Inch HDMI BNC VGA Monitor with 1024x768 4:3 Display and Powerbank Support by Mark Caperton

. Overscan means that pixels left, right, top and bottom are not displayed. Some graphics drivers can compensate for this in the driver configuration settings, but if you're running Linux without X-Windows (i.e. a text or framebuffer console) there doesn't seem to be a way to compensate for this and you're stuck with console characters, that are not displayed. The only non-X-wndows Linux solutions I've seen are for the Raspberry Pi graphics driver only. If you're using X-Windows you *can* get overscan compensation with the "xrandr" utility, but it depends on your video driver/video card/chipset. This seems to be my only option aside from returning the product, using VGA instead of HDMI, which I didn't want to do. VGA connections are not overscanned like HDMI. I recommend that you try to find a non-overscan model if you intend to use HDMI. Look for "overscan" in product reviews.