Acer Answers

Driver Display Error May Cause Vertical White Lines or Image Abnormalities on the display

This article only applies to: Aspire E5-491G, Aspire S5-371 and Aspire S5-371T

SYMPTOMS
A display driver conflict may cause white lines or other abnormalities to appear after the system wakes from sleep mode or resumes after a long idle time. Acer is currently releasing BIOS updates to address the video driver conflict.

SOLUTION

You can use either of the methods below to resolve this issue.

Method 1: Download and install the Intel VGA driver 22.20.16.4836 (or later) from our Acer Drivers and Manuals page.

or,

Method 2: Use the following steps to rollback the display driver.

Type Device Manager in the Windows Search Box, and select Device Manager from the list of search results.
Locate and Right Click on the Intel HD driver under Display.
Select Properties.
Select the Driver tab.
Select Roll Back Driver.

If you are still experiencing a problem, please contact Acer support for further assistance..

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