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Windows 7: Horizontal Lines on Display

10 Feb 2017   #1
BryanJames16

Windows 7 Ultimate 64-bit
 
 
Horizontal Lines on Display

Hi! I recently bought a second hand Dell Latitude E4300 laptop. I have some trouble in display. During the first days of the laptop at my ownership, the display doesn't show this problem. Today, it showed a horizontal 'glitch'. Whenever I move the window, the glitch stays with it.


Look closely at the edge of the window and the task bar.


This picture clearly shows the problem.

I noticed that there is no glitch when I switch to basic theme. I tried creating a batch script that stops Desktop Window Manager and start it again. Upon executing this command, the problem seems to fix for quite sometime, but eventually will glitch again over time. The script has only 1 line:
Code:
net stop uxsms && net start uxsms
Attached to this post is the Speccy dump of the specification of my laptop. What shoul I do? Thanks in advance!




Attached Files
File Type: txt Dell Laptop.txt (69.1 KB, 0 views)
My System SpecsSystem Spec
.
10 Feb 2017   #2
RolandJS

Windows 7 Professional 64-bit
 
 

Have you already tried an external monitor to test? I think you indicated Safe Mode doesn't have this problem,correct?
My System SpecsSystem Spec
10 Feb 2017   #3
BryanJames16

Windows 7 Ultimate 64-bit
 
 

I tried connecting to the external monitor. The problem still persists. I haven't tried in safe mode yet. Does safe mode support aero glass?
My System SpecsSystem Spec
.

10 Feb 2017   #4
RolandJS

Windows 7 Professional 64-bit
 
 

Quote   Quote: Originally Posted by BryanJames16 View Post
...I haven't tried in safe mode yet. Does safe mode support aero glass?
I doubt it, I only mentioned Safe Mode as a test to rule in or rule out hardware being the culprit.
My System SpecsSystem Spec
14 Feb 2017   #5
BryanJames16

Windows 7 Ultimate 64-bit
 
 

I haven't tried the Safe Mode method. However, I found and partially 'fixed' the problem.
I use the laptop to develop different applications (mobile, desktop, and web) running different types of tools. Android Studio has a built-in device emulator so you can run different apps on different devices. However, virtualization technology should be enabled to be able to use that feature. I enabled VT-x on my machine. I also enabled Direct I/O for VT. Enabling Direct I/O seems to be the one causing the problem. Disabling it fixed my problem.
My System SpecsSystem Spec
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 Horizontal Lines on Display




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