820-3115-B weird display glitch

Sr. Robot

Member
Hi, got an 820-3115-B with an LCD glitch i have never seen before, the screen looks fine but as soon as you boot into OS or recovery USB the screen goes black horizontally as you move the cursor (if the cursor goes down the black part goes down, if you go up the black part goes up in a rectangle across the screen). See attachments.

The glitch doesn't happen on boot options.

The worst part is the board itself looks immaculate, like it was never used at all. I replaced the board with a known working one and the screen works fine.

RAM slots look fine, tried different ram sticks no change.
 

Attachments

  • WhatsApp Image 2022-03-14 at 9.57.53 PM (1).jpeg
    WhatsApp Image 2022-03-14 at 9.57.53 PM (1).jpeg
    203.3 KB · Views: 1
  • WhatsApp Image 2022-03-14 at 9.57.53 PM.jpeg
    WhatsApp Image 2022-03-14 at 9.57.53 PM.jpeg
    222.6 KB · Views: 1

2informaticos

Administrator
Staff member
Boot Windows, or Linux Live and see what happens with image.
Possibly iGPU problem, when graphics driver is loaded.

Did PRAM reset?
 
Top