Computer Help forum


Weird split screen discoloration. Please help.

by Mazamba / June 16, 2015 1:47 PM PDT

I am not entirely certain as to what happened, but for some reason my computer won't display color correctly anymore. Black, Red, and Orange are not affected. However, on the right side of my screen, Yellow looks green, some white turns into a tiny checkerboard that looks grey (this doesn't affect all white, some dialog boxes show as normal), and some colors seem to vibrate. Screenshots don't show the discoloration. Does anyone know what's going on?

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Clarification Request
No make, model etc.
by R. Proffitt Forum moderator / June 16, 2015 2:13 PM PDT

When the screenshot doesn't show it, it's usually a failed LCD or connection to said LCD. If this is a laptop you use an external till you determine if repair is cost effective.

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Toshiba, Satellite c845, purchased in 2013
by Mazamba / June 16, 2015 2:28 PM PDT
In reply to: No make, model etc.

I considered that too, but the discoloration doesn't affect everything. Some white boxes, for example, will remain white but others will get that weird grey. Not all images are affected either. One thing though, my computer won't let me attempt a restoration.

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That's typical of a lcd or connection to lcd failure.
by R. Proffitt Forum moderator / June 16, 2015 2:52 PM PDT

As to the restore, that's not unexpected today. Norton, Kaspesky and other antivirus block system restore. That's on the web for those that want to catch up.

As to the weird gray or such, the failure manifests itself in many ways but repair is usually the cable, lcd and or motherboard.

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by Mazamba / June 16, 2015 6:17 PM PDT

What could've caused that?

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Hold up.
by Mazamba / June 16, 2015 6:27 PM PDT

But it doesn't affect all colors or all files. Could it not be a virus in my drivers? I'm already running a trojan scanner.

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The clue it's not a Trojan.
by R. Proffitt Forum moderator / June 16, 2015 6:33 PM PDT
In reply to: Hold up.

" Screenshots don't show the discoloration. "

It sounds like one of the usual hardware failures to me. As to cause, age, corrision, heat, parts failure.

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That makes sense.
by Mazamba / June 16, 2015 7:30 PM PDT

Is it normal that not all colors or images are affected though? I'm asking because it's the first time I've had issues with this computer other than some overheating. There was another guy with a similar issue but was affected by contrast. Mine is somewhat like that in that it seems to be more of a setting error than anything else.

Either way, thanks for all your help. How can I fix it? Or should I take it to a technician?

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Such has been a subject of many YouTube videos.
by R. Proffitt Forum moderator / June 16, 2015 7:40 PM PDT
In reply to: That makes sense.

If this is your first foray into PC repair the thing is you must accept the machine may totally melt down.

On review of this thread I don't see make, model, age so I'll have to stop here. Many of these are far cheaper to replace than repair.

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I posted that in an earlier reply.
by Mazamba / June 17, 2015 7:50 AM PDT

It's a Toshiba Satellite c845 that was purchased either in 2012 or 2013 (can't remember). It wasn't too expensive and I got it on sale for $700.00.
BTW; how do I post images? It might make more sense if you could see it.

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Thanks. But that's not the full model number
by R. Proffitt Forum moderator / June 17, 2015 8:10 AM PDT

Images are done by putting them on image sharing sites like imgur but after seeing hundreds like this over the years I think it's the same thing. LCD, cables or motherboard.

I never read (or missed) where it worked fine in safe mode. If it did you could try a factory restore (which of course wipes it clean so your backups are going to be important.)

Look for numbers trailing the C845-S4230 so we can see if some 250 to 399 buck laptop is a step up and cheaper than repair.

Most of these, due to the repair cost are relegated to a desktop with an external display hooked up.

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Found it
by Mazamba / June 17, 2015 3:39 PM PDT

It's a Toshiba Sattelite C845-SP4276FM

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" there are no manuals/specs to show for this model."
by R. Proffitt Forum moderator / June 17, 2015 3:47 PM PDT
In reply to: Found it
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Thanks for everything.
by Mazamba / June 17, 2015 7:26 PM PDT

I reinstalled the drivers and it's working fine again. Thanks for everything.

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Never heard about the Safe Mode test.
by R. Proffitt Forum moderator / June 17, 2015 7:37 PM PDT
In reply to: Thanks for everything.

Sorry if I didn't push on that hard. It's one of those tests you do.

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I was wrong.
by Mazamba / June 18, 2015 5:46 PM PDT

It really is the connectors. The computer got banged against the wall, and provided a temporary fix. I'l take it to a technician tomorrow. Depending on what he tells me, I might get a new one.

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One thing I forgot to mention.
by Mazamba / June 16, 2015 7:33 PM PDT

The discoloration seems to "lag" at times. When I first start up the computer, it won't show the discoloration until I open the log in screen. The wallpaper is fine before that.

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Easy test.
by Kees_B Forum moderator / June 17, 2015 8:41 AM PDT

How is it in Safe Mode?
How is it if you boot from a Linux Live disc?


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No good.
by Mazamba / June 19, 2015 7:51 AM PDT
In reply to: Easy test.

Safe Mode did jack squat. Thanks though.

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Ouch. Looking more and more hardwary
by R. Proffitt Forum moderator / June 19, 2015 8:01 AM PDT
In reply to: No good.

But I thought you wrote drivers fixed it. This effect can be rough on folk as the hardware heals and breaks again.

All Answers

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Example replacement today.
by R. Proffitt Forum moderator / June 17, 2015 9:45 AM PDT
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