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7 Posts

12-07-2014

louisvilly, ky

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2014-12-07, 2:04 AM

Is anyone not experiencing the flickering with dim brightness, or is this just a thing? Maybe some people don't notice it with their style of use. 

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7 Posts

12-07-2014

louisvilly, ky

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2014-12-07, 7:54 AM

I installed Ubuntu next to windows to see if the brightness flickering persisted at low brightness levels. And it does. This is a hardware issue. So it looks like we all have laptops with faulty displays. I use my laptops a lot at night on the lowest brightness setting, and it is not possible with this laptop because of the "flickering". Saddening. 

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7 Posts

12-07-2014

louisvilly, ky

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2014-12-07, 18:01 PM

I found a "fix", which is more like a hack.If you install xcalib you can dim your screen to simulate a low brightness setting. Essentially, it is changing the constrast of your screen and not the backlight itself. So if you set it on the lowest brightness setting that doesn't flicker, and then use xcalib to go down the rest of the way, you can achieve an even lower "brightness" than stock without any flickering. Just wated to share, good luck everyone. I'm using it on Ubuntu Gnome right now.

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42 Posts

09-26-2014

Montreal

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2014-12-07, 20:32 PM

While I do agree it's most likely hardware related, a fix could potentially be deployed. It's either a driver issue or a BIOS issue. Having this solved by Lenovo though? Who knows.

 

For the time being, it doesn't happen all that often to me and workaround is to raise brightness to max and lower it again. It's an irritant more than a major issue... But I'm going on year #2 for this laptop. So I'll be shopping for something else by the end of next year.

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3 Posts

02-20-2015

US

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2015-02-20, 16:42 PM

I'm curious as to why Lenovo has done nothing in years to fix the issue. I see posts from 2013.  I bought this device in 12/2014 and having the exact issue that's been around for quite awhile.  

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42 Posts

09-26-2014

Montreal

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2015-02-20, 17:34 PM

Yeeeaahh... It's because Lenovo doesn't really know what they're doing probably. As others have stated, it is not a software issue, but a hardware issue. A BIOS update could possibly solve this.

 

This laptop is riddled with issues... For example: Wireless card is unstable (I replaced it), the yello1w colors being completely off in low performance mode (Worked around with energy manager and BIOS "fix"), this screen issue which has a "Lower brightness, raise brightness fix"... I'm sure some people have had other problems as well.

 

The Lenovo Ideapad Flex 15D is another example of very shoddy hardware integration. An AMD A-6 CPU which stays clocked at 0.76 ghz instead of its real clock speed. Lenovo had NO IDEA how to fix it... And I've seen a dozen of examples. The "fix" is a battery pull, but it always comes back.

 

Lenovo should really take the time to step back and take a good look at their architecture designs before release and should focus more on quality control. I personally, as I've stated earlier, will not buy or recommend a Lenovo laptop ever again.

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3 Posts

05-03-2015

USA

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2015-05-03, 2:32 AM

I also have the same issue, even after turning off the power settings in intel's display management. The flickering only happens when the brightness is below 40%. I also noticed the bottom of the screen is dimmer and has a wavy dimness.

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42 Posts

09-26-2014

Montreal

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2015-05-03, 3:14 AM
There's a new BIOS update that increases DRAM stability that was released a
few days ago... Haven't had time to confirm this fixes our issue though.
Considering video memory is shared with DRAM, here's hoping it helps us out.

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1 Posts

05-07-2015

Maastricht

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  • Message 199 of 250

Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2015-05-07, 8:01 AM

BIOS didn't fix anything...

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7 Posts

12-07-2014

louisvilly, ky

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Re: Yoga 2 Pro - Screen Flickering and Screen Blanking

2015-05-07, 14:07 PM
Just get a new laptop, it seems the flickering is a hardware issue. I ended
up selling my yoga 2 pro for $700 and invested in a Surface Pro 3. Never
looked back.

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