The issue is basically a dimmed screen while playing the full-screen games which makes games difficult (or in some cases, impossible to play). Before proceeding with the solutions, check if reverting the Windows update (if the issue started after a Windows update) resolves the issue. Moreover, keep in mind that you may fail to resolve the issue on Windows 10 Education version (due to its limitations).
Workarounds
Following workarounds are reported by users to solve their issue, you may try if any of them works out for you.
Edit the Monitor Settings
Your screen may go black when playing games if the monitor settings (e.g., Smart Contrast feature) are not properly configured. In this scenario, properly configuring the monitor settings may solve the problem. Keep in mind that settings may differ from device to device and you may have to find the equitant setting in your monitor’s menu to work it for you.
Disable Magic Bright in Samsung TV Settings
Disable ASCR (ASUS Smart Contrast Ratio) in the Monitor Settings
Disable the Windows Game Mode and Game Bar
Your computer screen may go dim while playing games if the Windows Game Mode or Game Bar is hindering the operation of games. In this context, disabling the Windows Game Mode and Game Bar may solve the problem.
Disable Dynamic Back Light Control in the BIOS Settings
The dimming issue may arise if the dynamic backlight control of the system’s BIOS is kicking in while gaming and thus causing the issue. In this context, disabling the Dynamic Back Light Control in the system’s BIOS may solve the problem.
Use a Custom Screen Resolution and Refresh Rate
The full-screen dimming issue may arise as a result of the improper configuration of the screen resolution & refresh rate. In this context, using a custom screen resolution and refresh rate may solve the problem.
Edit the Graphics Control Panel Settings
You may encounter the issue at hand if the graphics control panel settings (e.g., dynamic range, etc.) are not properly configured. In this case, editing the graphics control panel settings may solve the problem.
Disable Power Saving in Intel Graphics Control Panel
The system’s screen may dim out while playing full-screen games if the power-saving feature of the Intel Graphics Control Panel of your system is enabled (even if you have a dedicated GPU) and disabling it may solve the dimming issue in this context. If your system does not have Intel Graphics Control Panel, you may install the Microsoft Store app of Intel Graphics Command to proceed further.
Set the Dynamic Range to Full in the Nvidia Control Panel
Disable Vari-bright in AMD Radeon Settings
Use Sony Vaio Control Center
Use the Alienware AlienFX Editor
Clean Boot Your PC and Disable/Remove the Problematic Applications
The dimming issue may arise if an application on your system is hindering the operation of the games (or display modules of the OS). In this context, clean booting your PC and removing/disabling the problematic applications may solve the dimming issue.
Disable/Remove the Problematic Applications
Users have reported that the following applications caused issues for them (if you cannot disable/remove the process, then you may end it through the Task Manager during the gameplay):
Disable the Profiles Feature in the Antivirus Settings
If that did not do the trick, you may check if your antivirus is interfering with games. Bitdefender has a Profiles feature (that tries to manage power options automatically) that is reported to cause the issue at hand (you may check your antivirus product for a similar feature).
Roll Back, Update or Reinstall the Graphics Driver
The screen dimming issue while playing full-screen games may arise if the graphics driver of your system is outdated, corrupt, or incompatible. In this scenario, rolling back, updating, or reinstalling the graphics driver may solve the problem.
Roll Back the Graphics Driver
Update the Graphics Driver to the Latest Build
Reinstall the Graphics Driver
If the issue persists, then you may play the games in Windowed mode till the issue is resolved. If that is not an option, then you may try the system restore feature or reset your PC to the factory defaults.
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