Question My laptop's screen flickers or turns black randomly

Apr 30, 2022
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I've posted this before, but I can't find a fix for this. I have this problem for months without finding a permanent solution. My screen either jitter/shake or turns black and won't turn on even after rebooting, I just keep turning the laptop on and off until I finally get the display to work. The laptop seems to work fine when I connect it to an external monitor (I'm not sure if there won't be a jitter on the external display too since I don't use it for long). Based on what I found the problem could be related to the LCD display itself, the cable connecting to the motherboard, the CMOS battery (I don't understand why, it's just what I found), or faulty display drivers.
I tried to uninstall the INTEL and NVIDIA drivers using DDU uninstaller, then either installing them using one of the following:
-windows update: the problem is not solved, it's even worse than before.
-Directly from INTEL and NVIDIA websites : this seem to fix the black screen problem, or at least before I try another solution, but the screen jitter it's still there.
-Using Lenovo vantage : I think it's about the same result above.
Based on what I've done, could I be sure that it's not related to the hardware itself and it's just software issue?
PS: I have LENOVO yoga s740 with NVIDIA mx250
 

Etrius vanRandr

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May 11, 2022
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Based on what I found the problem could be related to the LCD display itself, the cable connecting to the motherboard, the CMOS battery (I don't understand why, it's just what I found), or faulty display drivers.
I can tell you right away that it's not the drivers or the CMOS battery.

It's either the display itself or the cable is loose.

See also some advice here for a slightly different issue.

https://forums.tomsguide.com/threads/top-part-of-the-screen-is-reflected-at-the-bottom-part-of-the-screen-any-fixes.502464/#post-1992933
 
Apr 30, 2022
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I can tell you right away that it's not the drivers or the CMOS battery.

It's either the display itself or the cable is loose.

See also some advice here for a slightly different issue.

https://forums.tomsguide.com/threads/top-part-of-the-screen-is-reflected-at-the-bottom-part-of-the-screen-any-fixes.502464/#post-1992933
I don't have the same issue, the screen flickers (I'm not sure if it's right way to describe it since english isn't my first language), the best way I can describe it is like the display goes right and left for half a second besides this the screen is fine no lines on the screens..., but I don't understand how reinstalling the drivers would fix big part of the problem, if it's related to a loose cable
 

Etrius vanRandr

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I don't have the same issue, the screen flickers (I'm not sure if it's right way to describe it since english isn't my first language), the best way I can describe it is like the display goes right and left for half a second besides this the screen is fine no lines on the screens..., but I don't understand how reinstalling the drivers would fix big part of the problem, if it's related to a loose cable
Can you take a photo or video of the issue?

Some driver settings can cause wobble, if your display refresh rate is set or modified improperly, and I suppose a reinstall would reset those options, but honestly it's more likely a hardware issue.
 
Apr 30, 2022
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Can you take a photo or video of the issue?

Some driver settings can cause wobble, if your display refresh rate is set or modified improperly, and I suppose a reinstall would reset those options, but honestly it's more likely a hardware issue.
I can't it's not something permanent, it's just happens once every 1-2 hours, I cannot know it will happen, sometimes it's more frequent, sometimes it could happen once a day
 

Etrius vanRandr

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Apr 30, 2022
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Does it look like any of these? If not, the intermittence suggests that the display driver is resetting based on usage. What are you normally doing when it happens?

View: https://imgur.com/a/jwFj0AH
before reinstalling the graphic drivers, sometimes the screen would be like this but I can easily get it back to normal by closing the laptop and reopening it or pressing ctrl+win+shift+b


Usually the screen would start flickering or go black when I'm generally using chrome, watching something or compiling some code.
 

Etrius vanRandr

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That's what I thought but I don't have that problem after reinstalling display drivers
A messed up cable can cause interference issues between the display and the driver.

A driver is literally just a piece of software to let the OS communicate with the hardware. If the hardware is messed up, there will still be issues.
 
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