This will refresh your hdmi connection and might fix the issue where your hdmi port is not working.
Hdmi to vga cable not working on tv.
Problems associated with vga to hdmi cable.
Video signals may be adapted in either direction hdmi to vga or vga to hdmi but there are certain limitations and expense differences.
This process is a must if you are running a presentation that still operated with a video graphics array capacity in a high definition multimedia interface world.
You should also inspect that the hdmi ports pc and monitor tv aren t covered with debris or dirt.
If you have an hdr enabled device such as a uhd blu ray player or streaming device connected to an hdr compatible tv it s possible that the tv is not recognizing the hdr encoded content.
The cable converts the higher standard high definition multimedia interface signal into the lower video graphics array standard.
Set your hdmi device as the default device.
Your title is saying hdmi vga adapter not working so what is it that the laptop is not working with the hdmi adapter or the system is not working need a little more clear info as being a hp laptop you can do a hard reset by holding the power button down until it shuts down then remove the battery and ac power adapter now hold the power.
Today s video technology is moving away from analog for a digital connection format hdmi dvi displayport however there are still situations where you need to change the display technologies usually due to differing ports on a computer and display.