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05-19-2020

AU

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Lenovo thinkpad T490 display error issue

2020-05-19, 7:27 AM

Recently for my thinkpad T490 there have been display issues where the laptop suddenly turns black and the display stops working. This also occurs when the laptop is asleep or shut off and I restart it and everything works but the display doesn't turn on sometimes. Although the native display doesn't work, I can connect it to my TV with an HDMI and still use the laptop that way. I also hear some musical beeps when this error is occuring and usin lenovos diagnostic app it was shown as a "Computer display error" code 0288. The native display is working sometimes and then stops working/turns black some other times so its really confusing. 

 

I'm having trouble figuring out what the actual problem is. Is it the motherboard, display cable, graphics card etc? Also what are things to diagnose and help solve this issue? 

 

Thanks 

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32 Posts

02-11-2019

CN

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Re:Lenovo thinkpad T490 display error issue

2020-06-03, 2:23 AM

Hello,

 

From your failed phenomenon, I suspect the VGA driver of your machine has some problem, can you try to do Windows Update?

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