With Gigabyte GA-MA78GM-S2H and with monitor connected via hdmi to the onboard 780g, it always takes a while for bios or boot up to appear on monitor. During this delay the screen is blue. The duration of the delays is not constant.

Then when starting and more commonly when stopping X there is a similar delay. I have a 12' long hdmi cable. I have not yet tried to see if this exists using rgb cable.

What is reason for these delays?

Are there things I can do to change this?