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18 Posts

04-14-2019

Australia

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-28, 11:50 AM
Lenovo are the worst. I lost all sound just after my warranty ran out & they didn't want to know me. JUST BUY A MACBOOK LIKE I DID AS Lenovo have not care for their customers... so many people having the same fault issues and no fixes.. so much money wasted on their pathetic products. Tell everyone you know.
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18 Posts

10-04-2020

United Kingdom of Great Britain and Northern Ireland

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-29, 11:15 AM

"Failed with 0x57 retrieving AppModel Runtime status for package Windows."

 

Now this error might be useful to us. Apparently there is a lot of evidence to suggest this was an issue introduced in Windows 2004 that interferes commonly with games on lots of different hardware configurations (https://www.reddit.com/r/Windows10/comments/ie2776/failed_with_0x57_retrieving_appmodel_runtime/). Symptoms include blue screens, games crashing, or laggy performance rather than what we're seeing, but it stands to reason that different hardware platforms will behave differently in different circumstances. Games (obviously) use hardware acceleration, so that is a degree of consistency with our experience.

 

But if this is causing issues to a wider audience rather than just C940 users there is some hope that Microsoft will resolve it in future builds.

 

 

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4 Posts

12-19-2020

Canada

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-29, 15:46 PM

Loccydaborg,

 

Nice name. So we're seeing 3 groups of ppl reporting a new "fix". Either driver 9030 or driver 9077 (me) and 1 person on driver 9079.

 

Keep in mind the 1 person on 9030 said he also disabled HWA in chrome, which resolves this problem anyways.

 

For me, beta driver 9077 is working fine for 7-8 days now, and I have HWA as ENABLED in chrome.

 

I am curious about 9079 but due to bsod reports I'll wait for now.

 

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12 Posts

12-25-2020

Netherlands

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-29, 16:12 PM

I've contacted lenovo via Facebook, and actually they have been very helpful. 

It seems I was the one causing the issue by updating my Nvidia graphics to latest version. 

I'm not gonna cheer yet, but I haven't seen the flickering and glitches yet this day, where before it would have happened by now. 

 

I have the C940 15 inch, with Nvidia graphics card

I'm running windows 1909

I've installed the Intel 9079 driver

And I have the Nvidia 4223 driver. 

I have hardware acceleration turned on

And enabled hdr. 

I have the latest bios update 

And the Intel management engine (by their recommendation) 

 

As I've said, not gonna cheer yet, but so far so good! 

 

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49 Posts

10-03-2020

Norway

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-29, 16:29 PM

got a notice from someone that MS have pushed a new version out on windows update

 

this is the 29.x series, so a jump from 26 and 27.x

 

29.20.100.9116

 

https://drive.google.com/file/d/1eWu95jCe5Ypq0wELz3kyd37BileDUBy8/view?usp=sharing

 

Intel UHD & Iris Graphics Drivers Version 29.20.100.9116 WHQL (station-drivers.com)

 

So anyone with the flickering problem (intel not nvidia) please try.

 

@AskNoMore ?

 

 

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62 Posts

11-14-2020

Turkey

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-29, 16:38 PM

Ok guys,

Everyday i follow the topic twice a day to check whats going on on your side.

I just waited for couple of days to be sure...

Well, In my case 9079 hast just solved the issue for three days with intensive usage.. No flickering, no taskbar replication... Nothing...

Its just solved like a miracle. I am pretty sure that it would happen by now....

 

Besides i am observing better more silent fan speeds and slightly better battery life. (placebo effect?)

I will keep trying this latest driver.

 

I will give informations about progress.

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14 Posts

12-05-2020

Czech Republic

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-30, 11:41 AM

Sure, I can confirm that this driver is the most stable driver ever I had - without any flickering and another screen issue. But there is the serious bug with BSOD if you try to set HDR in windows graphic settings, I have send this bug to the Intel forum...

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62 Posts

11-14-2020

Turkey

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-30, 18:51 PM

HDR was always a mess with windows. I have some other devices with same HDR problems for windows.

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62 Posts

11-14-2020

Turkey

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-30, 19:07 PM

By the way,

After Intensive usage for 1 day more, still no issues with latest stable driver.

4 DAYS and no issue.

 

Its over i think.

Have fun your devices guys :)

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49 Posts

10-03-2020

Norway

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Re:Lenovo Yoga C940 screen glitches, flickering, flashing

2020-12-31, 10:41 AM

@AskNoMore    seems so. so far so good here also

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