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Topic # 198900 27-Jul-2016 18:55
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One of our beloved but aged Lenovo G570 laptops has got a "funny screen".

 

Everything is readable but the colours are all over the place, and there are swirly sort of patterns which should not be there.

 

An external VGA connected monitor displays perfectly.

 

A local laptop repairer (who kindly donated the M2.5x8mm screws requested in a previous post) reckoned it was a driver issue.

 

Uninstalling and reinstalling the driver made no difference.

 

Replacing the missing 6 screws also made no difference.

 

But upon reflection, I can state that the display looks odd in BIOS during bootup as well.

 

So that would rule out drivers and point to hardware, yes or no?

 

 





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  Reply # 1599659 27-Jul-2016 18:56
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Photo?




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  Reply # 1599660 27-Jul-2016 18:58
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RunningMan:

 

Photo?

 

 

After dinner I will take a photo, though photos of laptop screens look odd anyway.





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  Reply # 1599676 27-Jul-2016 19:29
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I'd say definitely yes to being hardware if the BIOS is showing the same issue. 

 

It could be something super simple like a loose cable but laptops would be tricky to troubleshoot in that sense since you probably don't have a spare compatible display to rig up and test it with. 





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  Reply # 1599726 27-Jul-2016 20:27
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OK, I have to retract an earlier statement.

 

It actually looks OK once you hit F2 and go into BIOS settings.

 

 

But the initial startup logo

 

 

and Windows desktop look odd.

 

 

 

 

 





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  Reply # 1599728 27-Jul-2016 20:30
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What happens if you start in Safe Mode, or boot from some super super basic linux distro? I'm not 100% sure but I don't think this should be happening on the boot screen (where it shows Lenovo) if it were a driver issue, as that part of the boot process is still before the OS is even loaded. 

 

Possibly because the BIOS screen has a very basic colour scheme the distortion issue isn't obvious there?





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  Reply # 1599745 27-Jul-2016 21:21
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Safe mode is affected by the issue.

 

I dont have another OS to boot from.

 

So starting to look a lot like a hardware issue.





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  Reply # 1599760 27-Jul-2016 22:08
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Daughters laptop had the same issue. Then it started to come up with IRQ(?) errors at boot! In our case, video hardware is dying.


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  Reply # 1599761 27-Jul-2016 22:11
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Can sometimes be bad memory modules.




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  Reply # 1599774 27-Jul-2016 22:17
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coffeebaron: Can sometimes be bad memory modules.

 

 

 

Good point! (Though in my case that was one one of the things I tried... swapped with another laptop and it made no difference, and memory was fine in the other.)


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  Reply # 1599844 27-Jul-2016 22:57
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Had weird colours as the flex thru the hinge was on its way out on an old laptop. Not worth fixing as it was 5 years old when it failed so it ended up stuck somewhere as a computer to RDP into to do things.





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  Reply # 1599935 28-Jul-2016 01:06
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Either screen or GPU (if it has a dedicated GPU that is), more likely the screen.

 

 

 

They go for about $110 on trademe, make sure the one you get is the correct one in terms of part number.





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  Reply # 1600006 28-Jul-2016 08:56
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My guess is the same as richms's.

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  Reply # 1600035 28-Jul-2016 09:50
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The distortion/artefacts look organic to me

 

Have you tried http://www.passmark.com/products/monitortest.htm

 

Download and boot from an Win7/8 PE boot disk or an Ubuntu live disk and see if the problem still exists.

 

Does adjusting the angle of the screen help or worsen the problem? (dodgy cable)


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  Reply # 1602876 2-Aug-2016 13:16
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kiwifidget:

 

An external VGA connected monitor displays perfectly.

 

 

so it will be the display panel (or the cable)
It wont be a driver, RAM or anything else if its OK on an external monitor.

 

The backlight looks full on it the middle, or is that just the camera flash ?

 

 


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