Easy to try if it's monitor or the video card. Just try another monitor (ask a friend or family member to bring theirs), or try this monitor on another computer (for example, a friends laptop with a VGA-connector).
Then you know what to replace.
My computer monitor doesn't come on right away when my computer is turned on. When I turn the computer on and after a couple of minutes the monitor is still not on. The power is turned on but the screen still won't come on. I've done the following to make it come on.....unplugged the monitor from the electrical outlet two or three or four or five times and plugged back in and sometimes that will make the monitor come on....sometimes when that won't work, I disconnect the power on back of monitor two or three times and reconnect and that makes the monitor come on.
My computer is a refurbished computer purchased from Walmart last July. It's an "Acer AXC-603G-UW13 with Windows 8.1. 500GB hard drive.and 4GB DDR3 memory and Intel 11900 processor. The computer works very well.
I'm wondering if it's a problem with the monitor which I've had for about 8 years or a problem with the computer. The monitor is a Westinghouse flatscreen model LCM -17v2 SL with DC input 19V---2.6A.
I'm just not sure what to do. I hate to buy a new monitor when I'm not sure it's gone bad. When the monitor comes on it works very good and shows up everything very good as it always has.
I would appreciate any advice or recommendations anyone might have.