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3 Posts

12-03-2020

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Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-03, 17:51 PM

I have a Yoga C940-14IIL. I'm having intermittent issues where the screen will turn black then begin to display repeated Windows 10 taskbars down the screen. After a few seconds, it goes away and the screen is back to normal. The thing is that it's happening several times a day.

This occurred on the original version of Windows 10 shipped with the laptop. So I wiped the drive clean and reinstalled Windows 10 2004 from ISO so it would be a fresh, Windows-only install with no extra Lenovo stuff. Unfortunately the problem came back.

Lenovo support on Twitter asked me to ensure I updated the BIOS and driver which I have using the Lenovo Vantage app. At the moment, Windows 10 is at version 20H2 with the latest Lenovo drivers for the laptop (downloaded via Lenovo Vantage).

At this point I'm at a loss of what to do next. Below are videos of the issue:

 

 

 

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170 Posts

04-26-2020

United Kingdom of Great Britain and Northern Ireland

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-03, 17:57 PM

Search the forum. It's a very common issue and as yet unsolved.

Lenovo support are utterly useless.

 

Edit, I'll save you the hassle. One of a few threads: https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Notebooks/Lenovo-Yoga-C940-screen-glitches-flickering-flashing/m-p/5044566

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3 Posts

12-03-2020

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-03, 20:45 PM
Thanks for the heads up. Seems like it's a pervasive issue that's not getting attention. Not a good thing. :(
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9 Posts

10-27-2020

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-05, 18:14 PM

This is the software incompatibility issue. You can either downgrade to Windows 1909 or update to 20H2 with the hardware acceleration option disabled in your software (such as office, chrome, etc.).

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3 Posts

12-03-2020

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-06, 20:59 PM

Thank you for the reply. I went with disabling hardware acceleration for the time being.

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4 Posts

12-08-2020

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-08, 17:38 PM

I am having the exact same issue. I have tried to contact Lenovo support and they are advising me to do a laptop refresh and then take it to geek squad at best buy. So disappointing. Geek Squad / Best buy is the worst. I had taken my old laptop to them and they kept it for 3 months and the laptop then never worked. 

This is how my screen looks.

Is there any possible fix?

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4 Posts

12-08-2020

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2020-12-08, 17:47 PM

Hi. I am on Windows Feature update with 20H2 and I still get this issue. Is there going to be a fix from lenovo. Are you sure this is a software issue? and not the hardware one?

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1 Posts

01-18-2021

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2021-01-23, 19:57 PM

This brand is not what I thought it was. I bought my laptop in December 2020. I started having issues with my taskbar showing down the entire screen and glitching then my laptop would go to a black screen and back to normal. I tried to reset the laptop, I uninstalled windows, someone from Lenovo updated my drivers and nothing worked. So I did a live chat on Lenovo to see if I could take it to a repair center. I was told there wasn’t one near me so I was advised to take it to bestbuy. Mind you it’s under warranty and I told the person i was chatting with that. He then says well you can send it to our repair shop to have it repaired. I can’t do that option because I’m in school. So then he says well you can pay $79 for a onsite repair. I was like why when it’s under warranty and little over a month since I got it. So I was like whatever and I payed it. Then he says you can add another $25 so I can have one site repair whenever I needed it. I felt offended by then. Like i already spent a lot of money on the thing and now it’s acting up after a short period of time. I see that I’m not the only one that has experienced this issue. This is really unacceptable. Sorry for the picture being sideways.

1E932E96-20B0-4EE5-B46D-2AFB8690DFF1.jpeg
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170 Posts

04-26-2020

United Kingdom of Great Britain and Northern Ireland

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Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2021-01-23, 20:51 PM

Everything is explained two threads below this one.

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2 Posts

04-13-2021

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  • Message 10 of 13

Re:Yoga C940 screen issue. Taskbar displays multiple times down the length of the screen

2021-04-13, 18:23 PM

I am having the same exact issue. Windows 10 taskbars repeated down the screen then after a few seconds is okay. Anyone found a fix for this. This is frustrating that Lenovo has so many users reporting this issue and does not care to have a fix.

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