Have you first tried to update the Monitor's driver, if any new ones? Also have you tried to double check your configuration on your Monitor to work with the proper resolutions.
By the way, AMD latest Drivers work best when Intel Graphics and Chip sets have the latest drivers installed. You can download and use Intel's own updater called Intel Driver and Support Assistant to properly update all your Intel drivers including your Intel APU.
After updating all the Intel drivers including the Intel APU, try doing a clean installation of the AMD Drivers again and see if it makes any difference.
Also the RX 4xx and RX 5xx needs to be configured properly for it to be more stable. It may help prevent the black screens using AMD Wattman as per this kingfish instructions:
In the game profile:
In wattman, set Temperature to manual, lower slider to about 75c-80c.
Power Limit set to the maximum + value (all the way to the right)
Click 'apply' at top of page.
Do not touch any other setting...leave all at default (automatic)
Dual boot? Have you disabled fast startup?
Windows 10 Fast Startup could be detrimental to your computer
If you're thinking about dual-booting Windows 10 with an older version of Windows or another operating system, you might want to heed How-To Geek's advice:
When you shut down a computer with Fast Startup enabled, Windows locks down the Windows hard disk. You won’t be able to access it from other operating systems if you have your computer configured to dual-boot. Even worse, if you boot into another OS and then access or change anything on the hard disk (or partition) that the hibernating Windows installation uses, it can cause corruption. If you're dual booting, it’s best not to use Fast Startup or Hibernation at all.
- When you shut down a computer with Fast Startup enabled, Windows locks down the Windows hard disk. You won’t be able to access it from other operating systems if you have your computer configured to dual-boot. Even worse, if you boot into another OS and then access or change anything on the hard disk (or partition) that the hibernating Windows installation uses, it can cause corruption. If you’re dual booting, it’s best not to use Fast Startup or Hibernation at all.
How to Enable or Disable Fast Startup
Deciding whether to bother with Fast Startup actually takes longer than turning it on or off. First, open up your power options by hitting Windows+X or right-clicking your Start menu and selecting Power Options. In the Power Options window, click “Choose what the power buttons do.”
If this is the first time you’ve messed with these settings, you’ll need click “Change settings that are currently unavailable” to make the Fast Startup option available for configuration.
Scroll to the bottom of the window and you should see “Turn on fast startup (recommended),” along with other shutdown settings. Just use the check box to enable or disable Fast Startup. Save your changes and shut down your system to test it out.
If you don’t see the option at all, it means hibernation is not enabled on your machine. In this case, the only shutdown options you’ll see are Sleep and Lock. The quickest way to enable hibernation is to close the power settings window and then hit Windows+X and open Command Prompt (Admin). At the Command Prompt, type the command:
powercfg /hibernate on
