Vertical lines on Monitor

Aug 6, 2018
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My display is white with waving vertical lines at boot up last thing I did was to open dota 2 tried an external monitor and it only gives me black screen I'm suspecting a faulty videocard as my laptop is stationary and barely moved. But i remember I have igpu i5-3210m and gpu ATI 7670m laptop model: Toshiba Satellite l850 B757. Why does the igpu doesn't work or my suspected component is wrong?
 
Aug 6, 2018
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White screen with waving vertical lines when i boot up. From starting the pc so can't even see POST
 
Apr 30, 2018
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Sounds to me like your screen could be going bad, or there is a loose cable in there somewhere.
 
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