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Display flickering issue with Ideapad S540

2020-09-21, 8:06 AM

i bought new laptop 10 days ago from last 3 days display flickering issue started. please provide solution asap


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Re:Display flickering issue with Ideapad S540

2020-09-21, 8:40 AM

Hi Ronn21,


Welcome to the Community Forums.


Here are some troubleshooting steps you can try:


Test 1 - Is the flickering persistent when entering the BIOS ?  

**To test this please turn off your computer fully and on startup. Press the Novo Button to enter recovery menu, then select BIOS Menu.

No: Software Issue (Continue on Step 1.)

Yes: On board LCD/Cable/Motherboard/Discrete GPU (Continue on Test 2.)


Test 2 - If applicable, please try to connect the laptop to an external/2nd monitor and see if the flickering still happens.

No: On board LCD/Cable/Motherboard  

Yes: Onboard graphics card or Discrete Graphics Card(if available)/Motherboard.


**Note:  If the flickering is present in BIOS, (Yes to any of the above tests) then this is a hardware issue, as bios does not load more then the absolute basic drivers for hardware. In this case, I'd suggest contacting Lenovo support for your country directly (mail, e-ticket, phone) and see what can be done. Most likely it will have to be sent in to be assessed by an authorized technician.


Step 1. Disabling Power Saving Technology For Intel Graphics cards:

- Get into the Intel(R) HD Graphics Control Panel (CUI)

- Go to the "Power" section

- On the left navigation panel, select the "On Battery" option

- Pick "Display Power Saving Technology" | "Disable" |


Step 2. Perform a BIOS reset

- Navigate to the EXIT tab

- Press "Load Default Settings" / "Optimized Default"

- Save & Exit changes


Step 3. Rolling back to a previous Win 10 Version:

**If the screen flickering happened after a Windows update, please try to perform this step.

- Open the Windows 10 Settings Menu by clicking the gear icon in the Windows Start menu, or by pressing “Windows + I” keys.

- Click “Update & security”

- Click the “Recovery” tab on the sidebar.

- Under “Go back to the previous version of Windows 10,” click “Get started.”

- If this is not available, then there should always be a "restore point" you can choose from "System Recovery"

- Click the Windows key and type "System Recovery" and click "Recovery" in the list.  

- Select "Open System Restore" - Click "Next" and select the latest "Restore point" where the device was working.

**Note: System Restore Points will only remove Apps and Programs installed after the selected Restore Point date. It will not remove word/text files or pictures etc.


Step 4. Disable Automatic Hardware drivers update

- Right click the Windows Icon, select the "Search" Function.

- Type "Control Panel" and select "Small icons" or "Large Icons" in the "View By" top right.

- Click the "System Icon"

- Navigate to "Advanced System Settings" -> "Hardware"

- Click "Device Installation Settings" and Select "No"

**This will prevent Windows from interfering with your hardware drivers in future updates, but keep crucial security updates rolling.


Step 5. Uninstall the Display drivers + drivers.

- Press the Windows key + X , Select "Device Manager"

- Expand "Display Adapters"  

- Right click the display adapter (Intel/AMD/Nvidia) and select "Uninstall"

- If prompted to uninstall drivers associated with this device, tick the box and continue.

- Perform a complete restart of the computer to let Windows install the most generic drivers for the device.

- Then download and install the newest drivers for your device from the Support Page

**Just plot in the serial number of the device and hit enter, might have to press it twice, then head to Drivers & Software and Display and Video Graphics


In the event none of the steps above fixes the issue, a factory reset of the device is our last possible solution to fix a software/driver issue:


Step 6. OKR - One Key Recovery

**This is a complete factory reset of the computer

**Loss of data can occur, so we advise you to backup your data if possible.


- Completely shut down the device.  

- Press the Novo Button :  It is the small reset hole on most devices that you need a unfolded paperclip to reach.  

- In case you do not own a device with a OKR button. You can also find out where it is or what reset function it is for your device at the support page under.


Knowledge Base & Guides -> User Guides -> And clicking the User guide(Not HTML one) in the list -> Ctrl+F to search the document for "Reset" and/or "Novo Button" / "Novo Hole"


- When the system boots up, a menu will appear, select System recovery and follow the recovery process.

- When entering the Windows environment again. Perform step 4 before allowing any Windows updates.


Good luck





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