Yesterday I noticed that I could not adjust the screen brightness on my Lenovo Ideapad Gaming 3 15ACH6. I have never had this happen before, and I have had this computer for almost 2 years now. I have tried to update some drivers and even factory reset it, but the issue is still here. Does anyone have any idea how to fix this?

Hi Sackos!

Welcome to the Community!

Sorry to hear about the issue with your screen brightness. Here are a few steps you can try to resolve this:

1. Update Graphics Drivers: Ensure that your graphics drivers are up to date. You can do this through the Lenovo Support website or by using the Lenovo Vantage app.

2. Check Power Settings: Sometimes, power settings can affect screen brightness. Go to Control Panel > Hardware and Sound > Power Options and make sure your power plan settings allow for brightness adjustment.

3. Hotkeys: Ensure that the hotkeys (usually Fn + brightness keys) are working. Sometimes, the function key might be locked, and you can unlock it by pressing Fn + Esc.

4. Windows Update: Make sure your Windows operating system is fully updated, as updates can sometimes fix underlying issues.

5. Disable Hybrid Mode: Open Lenovo Vantage App and make sure that Hybrid Mode is disabled.

Let us know how it goes.

Best regards,

Hector_Lenovo

Hello. Please note that I am using the same model and also experiencing the same issue. I just noticed like 3-5 days ago.

Dear Hector, 

Already done all of the steps above but nothing worked out. 

yea same here, It happened to me around those days, with the same laptop model. is resetting/reinstalling the windows only the solution?

Hi All!

Since you've already tried the steps mentioned earlier, here are a few additional suggestions:

1. BIOS Update: Sometimes, updating the BIOS can resolve hardware-related issues. You can find the latest BIOS update on the Lenovo Support website.

2. Rollback Drivers: If the issue started after a recent driver update, try rolling back to a previous version of the graphics driver.

3. Check for Conflicting Software: Ensure that no third-party software is interfering with the brightness controls. Sometimes, software like screen dimmers or certain power management tools can cause conflicts.

4. Check DGPU Settings: Check if dGPU settings is enabled in Lenovo Vantage. If it's not available, go to NVIDIA Control Panel and make sure that Display Mode is set to Optimus (3D Settings > Manage Display Mode).

5. Contact Support: If none of the above solutions work, it might be best to contact support team. You can also submit a service request here or find a local authorized service center here.

Best regards,

Hector_Lenovo

Hello everyone! My Lenovo IdeaPad Gaming 3 15ACH6 started having the same issues you mentioned. Last few weeks. I was entering the BIOS/UEFI when I had to check something and then upon rebooting and getting into Windows 11 Pro again I noticed the screen is on full brightness and cannot regulate it. I updated the drivers, AMD graphics inside the CPU and RTX3050 also. Went to amd.com and nvidia.com to download. No success. 

I have the same problem also occuring around the same date as above.

Clearly this is an issue.

Tried all teh above fixes and nothing works...

When will you udpate this?!