My brightness 100% and can't change it

[abcd123476]

Something strange is happening to my device.

When I press the keyboard, the screen brightness goes up to 100%, and I can't adjust or lower it unless I hit the table or lightly tap the device. When I do that, it returns to normal, and I can control the brightness, but sometimes the problem comes back.

What is the cause? My device is a Victus 15.

[Max3Aj]

@abcd123476, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
It sounds like your Victus 15 laptop has a hardware-related issue, possibly involving:

Possible Causes:

1. Loose Display Cable:
   • The fact that hitting the table or tapping the device temporarily fixes it suggests that the display cable might be loose or partially disconnected.
   • If the connection is unstable, the brightness control could be affected.
2. Keyboard or FN Key Issue:
   • If pressing keys triggers the brightness to jump to 100%, there might be a faulty FN key or brightness control keys (F2/F3 on some models) sticking or short-circuiting.
3. BIOS/Driver Glitch:
   • A corrupted BIOS or GPU driver may cause the system to misinterpret input from the brightness controls.
4. Power Delivery Issue:
   • If the laptop's power connection to the display fluctuates, it might reset the brightness to 100% when a physical movement (like tapping) stabilizes it.

How to Fix It:

Step 1: Check for Loose Display Cable

• If you're comfortable, open the back cover and check the display connector inside the laptop. If it's loose, reseat it carefully.
• Otherwise, take it to an authorized repair center to avoid damage.

Step 2: Test External Display

• Connect an external monitor and check if brightness behaves normally.
  • If it does, the issue is likely with your Victus 15's screen or internal wiring.
  • If not, it could be a software issue.

Step 3: Reset BIOS

1. Shut down the laptop.
2. Press F10 while turning it on to enter BIOS.
3. Look for an option to restore default settings and save changes.
4. Restart and check if brightness control works properly.

Step 4: Update/Reinstall Display Drivers

1. Open Device Manager → Display Adapters.
2. Right-click Intel UHD / NVIDIA GPU → Uninstall device (Check "Delete driver software for this device").
3. Restart your laptop and let Windows reinstall the default drivers.
4. If the issue persists, download the latest Intel & NVIDIA drivers from the HP support page.

Step 5: Test Keyboard Functionality

• Check if the brightness keys (F2/F3 or FN + another key) are stuck.
• Try an external keyboard to see if the issue persists.

Step 6: Hard Reset the Laptop

1. Power off your Victus 15.
2. Unplug the charger and remove the battery (if removable).
3. Hold the power button for 30 seconds.
4. Reconnect power and turn it on.

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping! 

Max3Aj

HP Support