“Doe anyone who has this hear a high pitch whine from the monitor of the a940? It goes away for me if I take the brightness below 20%. I am wondering if this is a problem with the system or I just have a bad unit.”
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Hi, We got one a month ago. We don't have that problem. I would take it back and have them look at.
Sorry, there was a problem. Please try again later.There should be no sound created by the screen brightness. We recommend you check to be sure you have the latest version of Windows 10 on the computer. Then update all the BIOS files and drivers up to that latest version of Windows 10. This is easily accomplished by scanning the computer with the Lenovo Utility software installed on the computer. This system has Lenovo utilities installed to help maintain the health of the device and keep the operating system software up to date. Type "Lenovo Vantage" in the Cortana Search window (if Lenovo Vantage is not installed on your device, you can download the APP and install it now). Select Lenovo Vantage from the list. In the window that opens, click on "Health and Support". In the expanded menu, select "Hardware Scan" In the window that opens, select "Run Quick Tests". This will scan your entire system for errors. Follow any directions that may pop up. If the problem continues after this scan, now click on "System Update". First select Windows update from the menu. Scan your system to be sure you have the latest version of Windows 10. Once that scan is complete, select "Additional Updates". This will scan your device to be sure there are no new BIOS/Driver updates needed. Follow any instructions that may pop up. If the issue still continues after these updates, we recommend you call Lenovo Tech Support at: 877-453-6686 for additional help.
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