A very annoying problem that most of the Lenovo laptop users usually encounter is Lenovo brightness not working. Due to this problem, the screen of your laptop turns very dim and it hurts your eyes to see things on the screen. When you accidentally press a wrong key, the problem appears on your laptop. The brightness of the laptop’s screen becomes so low that it is difficult for you to read whatever appears on the screen.
Therefore, if you are one of them who are struggling with the same problem, then you don’t have to worry too much. Here, in this post, we have listed 3 important fixes. These will help you to resolve the issue within minutes. Hence, read them and apply them accordingly to make the screen light bright again.
Relevant Hacks to Overcome Lenovo Screen Brightness not Working
There are many factors responsible for the issue of Lenovo screen brightness not working. Some of them are mentioned in the previous section. Apart from them, the faulty graphics drivers one such reason due to which the problem occurs. Hence, we have managed to identify some of the potentials fixes which will be effective for you to get rid of this situation. So, follow them to remove the issue.
Fix 1: Update the Graphics Driver
Basically, the main culprit of a dim laptop screen is an outdated Graphics Driver. So, you have to update it with the current and appropriate version. Before proceeding further, you need to know the model and manufacturer of the graphics card of your laptop. To resolve this annoying problem, try to perform the steps mentioned in the below section:
- At first, press Windows key + R to launch the Run dialog box.
- Type ‘devmgmt.msc’ in the Run box and press the OK button to open the Device Manager.
- Next, form the Device Manager window, choose the Display Adapter option and double-click on it to expand the option.
- After that, select the graphics card from the options and right-click on it.
- Further, select the Update Driver option. It will automatically search for the updated Graphics Driver software.
- Wait till the searching is over.
- At last, download the Graphics Driver with a fresh version and install it on your system. Once done, you will be asked to restart the laptop. Hit the Enter button to restart your system and check whether the Lenovo screen brightness stuck error gets resolved or not.
Fix 2: Press Brightness-Up Key while Starting up the Laptop
If the above solution does not help you, then try to perform this one to fix Lenovo brightness not working issue.
- Firstly, shut down your laptop completely.
- After that, press the Power button to turn on the system. In the meantime, you should press and hold the brightness-up key. You will usually find these keys among the function key F1 to F12.
- After starting up the device, you can find that the laptop’s screen has been brightened up.
Fix 3: Modify the Registry
Changing the registry value is one of the effective fixes to resolve the issue. But, this is a very risky task. Any wrongs step can lead you an unexpected error. Hence, you should be very careful while changing the registry key. It is recommended that you should back up all the data and files which are stored on your laptop. Therefore, go ahead and perform the action carefully.
Step 1: At first, press the Windows key + R button to open the Run dialog box. After that, in the Run box, type ‘regedit’ and press the Enter button. It will lead you in the Registry Editor option.
Step 2: Then, in the Registry Editor, you need to use the Registry Hive which is located in the left-hand side of the screen. After that, navigate to the location that is mentioned in the section below.
- “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000”
- Otherwise, “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0001“.
Step 3: Then, find the FeaturesTestControl option and double-click on it. After that, change the value data to f048 and hit the OK button.
Step 4: Lastly, close the Registry Editor window and restart the system. After successfully completing the steps, check the status of the issue.
These are the fixes which help to resolve the Lenovo brightness not working issue. If the above mentioned does not help you, then it should be a problem with the hardware. Otherwise, the above solutions are enough to get rid of this situation. Also, do not forget to share your feedback with us.
