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200 Posts

06-14-2016

Sweden

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Re: Graphics Card Choices

2017-05-17, 20:34 PM

wrote:

wrote:

,

 

I have the P51 with the 4K AUO screen in front of me. So far my experience with it has been really good. Doesn´t have the viewing angle problems the Sharp screen in the P50 had. 100 % sRGB & AdobeRGB according to my Spyder 4 Pro. Not the brightest screen, but I would say its pretty close to 300 nits.

 

Here are some pictures in comparison with the P50 FHD (LG LP156WF6-SPK1): https://imgur.com/a/D0bQD#d3LkUug


Thanks. Unfortunately, for me, anything below 300 nits just does not cut it these days. But glad to see that Lenovo has at least improved the P50 screen although it seems  like the improvement are not revolutionary rather than evolutionary.


That said, I still have a constant feeling that Dell just isn't as good as Lenovo in general when it comes to quality etc. If the P51 4K screen turns out to be good enough, I might just get a P51 instead even thoug I dont really need Quadro graphics etc.

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32 Posts

05-06-2016

United States of America

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Re: Graphics Card Choices

2017-05-24, 21:21 PM

The 4K screen uniformity is definitely better than that of the P50.  I'm still having eye strain/dizziness issue with this version of the screen though.  I'm not sure if the backlight frequency is causing this or the color of the LED itself.  Also, the antiglare coating diffuses light aggressively which may also be contributing to the fatigue.

I'll give my eyes a few days to see if they can adjust.  I'd hate to have to send yet another laptop back.

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664 Posts

10-21-2011

Germany

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Re: Graphics Card Choices

2017-05-24, 22:55 PM

@greekcs,

 

Which screen do you have? You can check with HWiNFO for example.

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32 Posts

05-06-2016

United States of America

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Re: Graphics Card Choices

2017-05-25, 15:17 PM

Monitor Name (Manuf): B156ZAN02.1

 

I tried forcing myself to adjust to the new display but it's driving me up a wall.  I ran a program called PWM which allows control of the backlight frequency but to no avail.   My W510 with FHD TN panel doesnt affect me at all.  Im at a loss here.

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4 Posts

12-25-2016

Japan

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Re: Thinkpad P51, P51s, and P71 annoucned

2017-05-25, 15:46 PM

Anyone know if a P51 4k panel or screen assembly can be swapped onto a P50? Anyone tried? Anyone succeeded?

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14 Posts

04-24-2017

United States of America

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Re: Graphics Card Choices

2017-05-26, 0:50 AM

Hi Greekcs,

 

I also have the same display in my P51 but am unable to detect any PWM using my phone, I thought I had read others have reported no PWM too?

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200 Posts

06-14-2016

Sweden

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Re: Graphics Card Choices

2017-05-26, 23:31 PM

 


wrote:

Monitor Name (Manuf): B156ZAN02.1

 

I tried forcing myself to adjust to the new display but it's driving me up a wall.  I ran a program called PWM which allows control of the backlight frequency but to no avail.   My W510 with FHD TN panel doesnt affect me at all.  Im at a loss here.


Suck a shame, had really hoped that Lenovo would up their game in the P51 but only seem to be marginal improvements :(

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3 Posts

06-02-2017

Belgium

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Re: Graphics Card Choices

2017-06-02, 16:53 PM

I tried forcing myself to adjust to the new display but it's driving me up a wall.  I ran a program called PWM which allows control of the backlight frequency but to no avail.   My W510 with FHD TN panel doesnt affect me at all.  Im at a loss here.

 

Hello,

 

Could your symptoms be caused by "IPS glow" ?

 

Thanks,

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32 Posts

05-06-2016

United States of America

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Re: Graphics Card Choices

2017-06-02, 17:43 PM

The IPS glow might be part of the issue. My home PC monitor is also IPS (Dell U2410) but uses CCFL backlighting and doesnt seem to cause eyestrain. Could it be the blue light emitted from the LED back-lighting?

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3 Posts

06-02-2017

Belgium

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Re: Graphics Card Choices

2017-06-10, 16:24 PM

wrote:

The IPS glow might be part of the issue. My home PC monitor is also IPS (Dell U2410) but uses CCFL backlighting and doesnt seem to cause eyestrain. Could it be the blue light emitted from the LED back-lighting?


Thanks for your reply.

I am somewhat sensitive to screen flickering in general.

I wish to go to a laptop shop and test all screens in order to determine whether I am sensitive to these problems, and which screens are affected.

Are there any specific patterns which allow to quickly detect that some screen can cause these problems ? reading black text on white background ? white text on black background ? watching videos ? playing games ? 

After how many minutes ?

If a specific laptop has a good 4K screen without any side effect, I might be tempted to buy it instead of risking being a loser in the screen lottery of Lenovo...

Thanks in advance,

 

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