See if you have only VGA port on the ASUS Monitor then you need to plugin the VGA part of HDMI to VGA in Asus Monitor and then plug the other part that is HDMI in your Macbook pro.
There might be a problem with you that both Asus monitor and the HDMI to VGA cable have same VGA Plugs,Like both of them are female VGA or both of them are Male VGA hence they cannot be connected together.
For that problem you need to have one more cable of the opposite character to that of your HDMI to VGA and your monitor's VGA port to establish a connection between the Monitor and Macbook pro using the cable you already have. Like if you have female VGA on your monitor and on your existing cable then you need to buy male to male VGA and vice versa you have to buy female to female VGA for male ports on monitor and cable you already have. If you feel that there is some other problem than that then you can message me directly and i will guide you accordingly.
Using a Mini DisplayPort to HDMI Female Adapter Cable Macbooks do not have HDMI female ports. But that do have Mini DisplayPorts.
only newer laptops
An HDMI cable connection will not work on an HP monitor if the cable or monitor are damaged. Trying a new cable or hooking it to a different device can help narrow down the problem.
You would need a hdmi cable, and a hdmi capable monitor.
My LG 20M38H-B Monitor can not work with HDMI cable with my PC but work VGA port Properly.
use HDMI cable
yes it does
Get a monitor with an HDMI or analog input and connect it to a cable TV tuner.
When you use a VGA cable coming out of the monitor, the monitor is giving out an analog signal through the VGA connection. For the monitor to give out a digital signal, you need a DVI or HDMI cable. The VGA to HDMI cord just converts the analog signal into a digital signal so it's not completely useless, however the quality will not be as good as an HDMI to HDMI or DVI to DVI or HDMI to DVI
Use an adapter which would connect to the monitor and PS4. Old monitors usually have a VGA port. Look for a HDMI to VGA cable
You can connect a CATV cable into a computer monitor by first attaching it to an external TV tuner. A VGA or HDMI output can then be attached to the monitor.
The Macbook Pro with Retina display does have an HDMI port. The Macbook Pro without Retina display do not have a HDMI port.