weird screen

[heavyice]

I am getting this weird screen on my toshiba c640 laptop. Before I go ahead with the dismantle procedure I would like to know what to check so that I don't miss anything.

P.S. I have not tried anything yet, on software or hardware part.

thanks.

[dellxps15]

Re: weird screen

have you tried with external monitor ?

[spleenharvester]

Re: weird screen

Try with external monitor. That looks like an LVDS problem to me. GPU is possible though.

[dellxps15]

Re: weird screen

i see gpu is intel... hard one to broke...

[lefos]

Re: weird screen

My guess is panel or lvds cable.

[heavyice]

Re: weird screen

I have tried an external source and it seems to be working fine.Can cable also be the reason? What next?

[jeremykum]

Re: weird screen

I have tried an external source and it seems to be working fine.Can cable also be the reason? What next?

Remove the screen, make sure battery is removed.
Carefully peel of the adhesive tape from the LVDS cable connector behind the screen, pull the cable out, then reinsert back. Try on, and see you get any difference.

No difference, if possible get a known working condition LED panel, fit it up.

Mostly this is related to panel it self. Faulty panel. But try the above, sometimes the connector do get oxidized and cause erratic issues.

Since you get perfect picture on external monitor, likeliness problem isn't the Intel chip. As dellxps15 said, this chip is hard to breakdown.

[heavyice]

Re: weird screen

Will try that and post again.

[opamp]

Re: weird screen

Replace the screen, a new cable will not help.

[dj_ricoh]

Re: weird screen

Its doing this in safe mode to?

[Agent24]

Re: weird screen

I only ever saw something like that once before. Funny enough it was also a Toshiba. I never got hold of it physically though, someone just sent me a photo, so I never did find out what was wrong.

[h3roe]

Re: weird screen

replace lcd/led it work for me