If you are using a laptop, you can flip it upside down and slide the battery release latch to take the battery out. Then, clear all residual power by pressing and holding the power button for 15 or 20 seconds. Next, reconnect your devices and boot the system to see if you still see the vertical lines.
Fixes to try: Fix 1: Force restart your computer. Fix 2: Check if your monitor is working. Fix 3: Reconnect your monitor to your computer. Fix 4: Disconnect your peripherals. Fix 5: Reinstall your RAM. Fix 6: Reset your BIOS settings to default. Though it might look complicated at first glance, just work your way down the list, step-by-step
It's a blue button near the bottom of the page. This will open the JScreenFix program in your browser. 5. Find the stuck pixel. Most of the browser window will be black, so finding the stuck pixel should be easy. If the stuck pixel isn't in the black section of the window, press F11 to make your browser full-screen.
Acer phone and chat technicians can assist with product setup, technical troubleshooting and general questions you may have about your Acer product. Take advantage of the convenience of texting us for support! 1-877-220-2321. Available 5AM-2AM CST. (Available 5AM-2AM CST - US and Canada): 1-866-695-2237. Available 24/7 - US and Canada.
On the Acer predator range they should flash up with the predator logo set against a black backdrop when you turn it on. If you don’t see that then the controller for the screen is dead Reply Answers. I guess the problem is with the power cord than the port on the unit. If you want to go the tape way then wrap a single layer of tape around the barrel of the plug that fits into the socket and try,if it is still loose add another layer until it is a tight fit. If you dont want to take an risk on it than i guess you can buy a new charger. U8SH. 218 13 16 379 28 176 447 467 242

how to repair acer monitor