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49 Posts

10-03-2020

Norway

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-01-24, 16:00 PM

@arobi 

 

This is a false positive.

 

the sense driver is already installed, but it still shows up. This is a bug/false positive in the lenovo software.

Just ignore it.

 

Regarding flickering. Try the latest driver from intel site. Lenovos is from the stonage.

 

https://downloadmirror.intel.com/30148/a08/igfx_win10_100.9168.exe

 

 

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3 Posts

01-22-2021

Ireland

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-01-24, 20:59 PM

Thanks @Bertil78 

You were right for false positive related to Intel Sense 10 driver.- any restart of laptop resolved problem with display.

 

Related to Intel GX driver. I already had that version installed on 18/1/2021 when my problems started, but with a number of other updates at the same time.

 

What I did now was to download version you suggested, did update, but probably as I already had that one, information about driver update now was not in device configuration history information. And problem was still there.

 

Then I removed that driver from windows display driver configuration and did installation you recommended again.

Then I had the same problem first 2 shutdowns which disappeared after restart as before.

But after more shutdowns the problem disappeared.

 

I'll check again tomorrow as mostly I do today is doing restarts and shutdowns.

Thanks for the suggestion.

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1 Posts

01-27-2021

United States of America

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-01-27, 23:36 PM

Same Problem

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1 Posts

02-01-2021

United States of America

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-01, 21:30 PM

YES! Downloading the Intel IRIS graphics driver worked to solve the flickering!!!  I was on the phone with Lenovo forever. They did a ton of diagnostics and wanted to send someone out to replace the screen, the motherboard, and who knows what else. Why isn't this fix in their  protocol? What a waste of everyone's time.

 

Thank you for the ideas everyone. You are much more helpful than the customer service at Lenovo. You should get paid! 

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49 Posts

10-03-2020

Norway

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-03, 16:31 PM
hehe Lenovo should pm me and ill give them my account number
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18 Posts

10-04-2020

United Kingdom of Great Britain and Northern Ireland

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  • Message 236 of 300

Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-06, 17:51 PM

This is what frustrates me the most, i.e. that Lenovo are still getting people to go through the farce of hardware repairs knowing full well that this isn't a hardware issue. And there's no way they DON'T know this. None. Meanwhile, we haven't seen a peep in this thread from Lenovo support people, yet there are clearly active on the board and dealing with fluff such as "which dock should I buy?" (where they give bad advice which will end up costing people money). As much as anything, this is the reason why this will be my first and last Lenovo.

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152 Posts

04-26-2020

United Kingdom of Great Britain and Northern Ireland

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  • Message 237 of 300

Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-06, 18:35 PM

Yeah, it's unbelievable. The support (if that's what you call it) is terrible.I posted yesterday about the fact the C940 thunderbolt ports are non-standard and erratic. Usual reply of update your drivers etc. and that's it.

 

When you question any more they stop replying to you.

 

The same dock works every single time on my bootcamped Macbook Pro 16" so the issue is the Lenovo implementation but they just don't care. Even the one they manufacture and suggest to use doesn't even work. It's just not funny any more.

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5 Posts

04-08-2016

India

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-07, 8:07 AM
Can you please detail this thunderbolt dock thing? May be a link where you raised the concern... Also are everyone facing similar issue?
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1 Posts

01-28-2020

United States of America

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-11, 2:38 AM

I'm having the same issue.

I recorded a video a sent it to Lenovo Service Center, and they told me to send them the laptop for repairs.

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1 Posts

02-12-2021

United States of America

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  • Message 240 of 300

Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2021-02-12, 6:34 AM

After downloading this driver Intel GFX Driver for Windows 10 (64-bit) -Yoga C940-14IIL. It fixed it for a couple of days but now right back where I started. At least they sent me a new one but only after my old one was destroyed. By the TEC who came to the house. He replaced the screen and motherboard. Then bit locker screen came on but I never set it up in the first place. The hard drive was useless. 

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