Video output

[dduesing]

My screen flashes no matter what output I use, HDMI or VGA. Tried rebooting to no avail.

[admin]

"1. Check whether the HDMI cable is in good contact (re-plug and plug to confirm that the HDMI contact is good); replace the HDMI cable and try (using the built-in HDMI cable). 3. The BIOS self-test cannot be reset and booted. BIOS discharge tutorial. If the above methods are not valid, follow the post-sale process
2. Detect whether the display is switched to HDMI display (VGA, HDMI, DP switching signal source is HDMI); replace the display to see if there is a display (exclude 1. Make sure the display is OK, 2. Signal compatibility issues). "