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How Do i fix no brightness setting and extreme lag on any app not by Microsoft

Mann Soni 0 Reputation points
2025-11-14T05:09:43.8866667+00:00

🔧 The Problems

Brightness slider is missing

In Settings → System → Display, the brightness control doesn’t appear at all.

Windows isn’t detecting your laptop screen correctly

  In Device Manager, your screen shows as **Generic Monitor** instead of **Generic PnP Monitor**.
  
     This prevents Windows from controlling brightness.
     
     **Brightness keys and night light don’t work either**
     
        Because Windows cannot detect the display as a built-in laptop screen.

đź“Ť Where the Problems Occur

Windows Settings → Display (brightness slider missing)

Device Manager → Monitors (shows Generic Monitor instead of Generic PnP Monitor)

Brightness hotkeys (Fn + F2/F3) (do nothing because brightness is disabled at system level)

Steps I Have Already Tried

Checked Device Manager – Monitors

Confirmed it only shows Generic Monitor.

Tried enabling Generic PnP Monitor

  The enable option wasn’t available.
  
  **Updated graphics driver**
  
     Installed the **AMD Radeon (TM) Graphics** driver from the **HP website**.
     
        Restarted the laptop afterward.
        
        **Uninstalled and let Windows reinstall the Monitor driver**
        
           Windows reinstalled **Generic Monitor**, not **Generic PnP Monitor**.
  1. Verified that Display Adapter shows AMD Radeon (TM) Graphics
    • Driver installed successfully.

      The Problems

    1. Brightness slider is missing
      • In Settings → System → Display, the brightness control doesn’t appear at all.
    2. Windows isn’t detecting your laptop screen correctly
      • In Device Manager, your screen shows as Generic Monitor instead of Generic PnP Monitor.
      • This prevents Windows from controlling brightness.
    3. Brightness keys and night light don’t work either
      • Because Windows cannot detect the display as a built-in laptop screen.

    Where the Problems Occur

    • Windows Settings → Display
      (brightness slider missing)
    • Device Manager → Monitors
      (shows Generic Monitor instead of Generic PnP Monitor)
    • Brightness hotkeys (Fn + F2/F3)
      (do nothing because brightness is disabled at system level)

    Steps I Have Already Tried

    1. Checked Device Manager – Monitors
      • Confirmed it only shows Generic Monitor.
    2. Tried enabling Generic PnP Monitor
      • The enable option wasn’t available.
    3. Updated graphics driver
      • Installed the AMD Radeon (TM) Graphics driver from the HP website.
      • Restarted the laptop afterward.
    4. Uninstalled and let Windows reinstall the Monitor driver
      • Windows reinstalled Generic Monitor, not Generic PnP Monitor.
    5. Verified that Display Adapter shows AMD Radeon (TM) Graphics
      • Driver installed successfully.
Windows for home | Windows 11 | Settings
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2 answers

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  1. David Sanchez 19,080 Reputation points Independent Advisor
    2025-11-14T06:04:23.6833333+00:00

    Hi there!! My name is David. It’s a pleasure to help you today.

     

    According to the information you’ve shared about the issue with your laptop and what you’ve already tried to solve it, please try the following steps to completely uninstall the video drivers from your laptop.

     

    1.       Perform a clean installation of your graphics drivers using DDU.

    • Download DDU from the following link:

     https://www.guru3d.com/download/display-driver-uninstaller-download/

    Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

    • Start your PC in Safe Mode

    • Go to Start > Settings > System > Recovery > look for Advanced Startup > click Restart now.

    • When the system restarts, a blue screen will appear > select Troubleshoot > Advanced Options > Startup Settings > Restart.

    • After restarting, you will see these options:

    • Press 4 – Safe Mode.

    • Press 5 – Safe Mode with Networking.

    • Press 6 – Safe Mode with Command Prompt.

    • You can press key 5 to start in Safe Mode with Networking.

    • Once the PC starts in Safe Mode, unzip and run DDU. • When it opens, click Close on the first window > under "Select device type" choose GPU - NVIDIA. • At the top, select the option Clean and Restart.

    • Once your PC restarts, install the latest driver for your graphics card.

     

    Let me know if the information shared was helpful. Best regards.

    Was this answer helpful?

  2. AI answer

    2025-11-14T05:10:01.89+00:00

    To address the issue of the missing brightness slider and the extreme lag on non-Microsoft apps, you can try the following steps:

    1. Update the Monitor Driver: Since your laptop screen is being detected as a "Generic Monitor," you should try to manually update the monitor driver. Go to Device Manager, right-click on the "Generic Monitor," and select "Update driver." Choose the option to search automatically for updated driver software.
    2. Install the Correct Graphics Driver: Ensure that you have the latest graphics driver installed. Since you mentioned using the AMD Radeon driver from the HP website, double-check that it is the correct version for your specific laptop model. You might also want to try using the AMD Auto-Detect tool to ensure you have the latest driver.
    3. Check Windows Update: Sometimes, Windows Update can provide necessary drivers. Go to Settings > Update & Security > Windows Update and check for updates. Install any available updates.
    4. Run the Hardware and Devices Troubleshooter: This built-in troubleshooter can help identify and fix issues with hardware devices. You can access it by searching for "Troubleshoot" in the Windows search bar and selecting the appropriate option.
    5. Check for BIOS Updates: Sometimes, outdated BIOS can cause hardware detection issues. Visit the HP support website to see if there are any BIOS updates available for your laptop model.
    6. Reinstall Windows: If all else fails and the issues persist, consider performing a clean installation of Windows. Make sure to back up your data before proceeding with this step.
    7. Check for External Monitors: If you have an external monitor connected, disconnect it and see if that resolves the brightness control issue, as brightness controls may not work with legacy monitor transports.

    If the problem continues after trying these steps, it may be necessary to contact HP support for further assistance, as there may be a hardware issue or a deeper compatibility problem with Windows 11.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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