http://gamingtrend.com
July 29, 2014, 11:44:42 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News:
 
   Home   Help Search Calendar Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Issue with laptop display  (Read 327 times)
0 Members and 1 Guest are viewing this topic.
Graham
Managing Editor
Gaming Trend Senior Member

Offline Offline

Posts: 4015


View Profile WWW
« on: January 20, 2014, 10:10:12 PM »

We have a laptop that we've had for a while.  However, it's been bumped and dropped a few times.  It has still worked, but today I've come across a new issue.

When I boot up my laptop, the screen blinks, but it doesn't show any graphics.  It blinks like it would when the computer boots up, so it appears that the signal is getting to the screen.  I also don't see any damage to the screen, and I checked the connectors and they seem to be fine.  I did hook up an HDMI cable into it and it showed up on the TV, so it doesn't look like the GPU isn't working.  Does anyone have any suggestions as far as what it could be?
Logged

Partial Owner of the World Champion Green Bay Packers
Punisher
Gaming Trend Senior Member

Offline Offline

Posts: 1719



View Profile
« Reply #1 on: January 20, 2014, 10:53:20 PM »

Quote from: Graham on January 20, 2014, 10:10:12 PM

I did hook up an HDMI cable into it and it showed up on the TV, so it doesn't look like the GPU isn't working.  Does anyone have any suggestions as far as what it could be?
Do you mean that the Windows desktop showed up on the TV?
If so, look at the F keys and you should have one that looks like a monitor of sorts. try pressing that a few times slowly. (give it 10 seconds between  presses)
Logged
Graham
Managing Editor
Gaming Trend Senior Member

Offline Offline

Posts: 4015


View Profile WWW
« Reply #2 on: January 21, 2014, 01:00:31 AM »

The Windows desktop did show up on the TV, but not on the monitor, even when I had it set to duplicate.
Logged

Partial Owner of the World Champion Green Bay Packers
heloder
Gaming Trend Reader

Offline Offline

Posts: 428


View Profile
« Reply #3 on: January 21, 2014, 01:27:17 AM »

Shine a flashlight onto the screen and see if you can make the image out. If so, the backlight or inverter is bad. If not, perhaps the connection between the GPU and monitor got jarred loose.
Logged
Graham
Managing Editor
Gaming Trend Senior Member

Offline Offline

Posts: 4015


View Profile WWW
« Reply #4 on: January 21, 2014, 01:38:22 PM »

Quote from: heloder on January 21, 2014, 01:27:17 AM

Shine a flashlight onto the screen and see if you can make the image out. If so, the backlight or inverter is bad. If not, perhaps the connection between the GPU and monitor got jarred loose.

Would the screen go blank and then light up again during the boot process if the connection got loose?
Logged

Partial Owner of the World Champion Green Bay Packers
heloder
Gaming Trend Reader

Offline Offline

Posts: 428


View Profile
« Reply #5 on: January 21, 2014, 02:08:20 PM »

I would think not with that kind of consistency. On screens that light up and then immediately go dark I've found the problem to be the backlight inverter (or perhaps the backlights themselves causing the inverter to shut the light off), but if that's the case you should be able to shine a light on it and see the Windows desktop faintly. How long is the screen staying lit? If it's on during POST and then shuts off for Windows then it's likely a driver issue.

Also, is this a CFL or LED lit screen? If it's the latter, then it's far less likely to be the light itself.
« Last Edit: January 21, 2014, 04:34:54 PM by heloder » Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2013, Simple Machines
Valid XHTML 1.0! Valid CSS!
Page created in 0.089 seconds with 35 queries. (Pretty URLs adds 0.011s, 2q)