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769 Posts

08-07-2010

United States of America

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Re: Faint Ghosting on X220 IPS screen

2011-09-06, 15:28 PM

justincwatt wrote:

I called Lenovo Tech Support (800-426-7378) this morning about the issue (I wanted to wait until after the holiday weekend). My call was handled by a support center in Atlanta, GA. I was on hold for about 8 minutes, until I was able to talk to someone. I described the problem (image permanence/ghosting on a new X220 with IPS screen) and referenced this forum, but otherwise he didn't need any other convincing or try to walk me me through some support try this/try that process.

As I have the barebones warranty, he processed repair through the depot. I should get a box in 1 business day and repair should be complete in 6 business days (he said). I've read/skimmed through the entire forum, so I am a little concerned about them "not seeing any problem" or "replacing my screen with another faulty screen" but I have to give it a try. The entire call took 15 minutes---not too shabby.

As an aside, he also mentioned that I should hold onto my hard drive, battery, and AC adapter. Probably makes for lighter/cheaper shipping, but it's also nice for me because it means I don't have to go through the process of reinstalling Ubuntu again ;) I'll update when I have something to share.


There's certainly nothing wrong with giving warranty service a try, but I doubt you'll get much improvement unless your screen happens to be unusually bad. I'm planning to wait until later in the warranty to see if Lenovo finds a way to improve the IPS screen.

 

Have you tried the process I describe in my posting here to see how your screen compares to mine? Saving screen photo(s) will also give you a good objective way to tell if a replacement screen is any better than your current screen.

 

Pulling the hard drive isn't a bad idea (especially as compared to an mSATA drive), but it should be backed up regardless (!), and you can password protect it to keep Lenovo from (ab)using it.

John   [tips]   ThinkPad T470p:
Win8.1Pro64 | i7-7820HQ | 32GB | 512GB SSD | WQHD | AC | BT | Cam | FR
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1 Posts

09-06-2011

Germany

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Re: Faint Ghosting on X220 IPS screen

2011-09-06, 15:58 PM

Hi, I just wanted to say that I received my new X220 today. I also have the issue (what a surprise) and I'll return my device asap. After reading the 30+ pages on this topic I don't have any faith in Lenovo fixing the display.

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2031 Posts

11-28-2007

Czech Republic

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Re: Faint Ghosting on X220 IPS screen

2011-09-06, 23:29 PM

wrote:

The image persistence definitely happens sooner (and more intensely) when the LCD brightness is at its maximum.


This is an interesting observation. I usually use the lowest possible brightness setting (below 40 cd/m2) because my eyes hurts by over-brighted (crappy office) displays. If the image persistence is not that visible at the lowest brightness, I'd try a unit to buy.

 

I don't expect any notebook display to be perfect as a professional Eizo/NEC desktop monitor but the image persistence screenshots shown here are way too much buggy.

__________________________________
ThinkPad (1992 - 2012): R51, X31, X220, Tablet 8.
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2029 Posts

12-02-2007

Australia

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Re: Faint Ghosting on X220 IPS screen

2011-09-06, 22:36 PM
------------------------------
I don't work for Lenovo
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4 Posts

08-14-2011

New Zealand

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Re: Faint Ghosting on X220 IPS screen

2011-09-07, 1:31 AM

My new X220 IPS has been pretty good so far although I haven't done any formal testing. As long as it doesn't appear in everyday usage it's fine with me.

 

One thing that I have noticed though (and I'm not sure if it's due to the ghosting) is that if I'm viewing a really dark website, then go to a light website, the light website feels slightly dimmer at first then gets brighter in a few seconds.

 

It's so gradual though that I'm not sure if it's just a placebo effect but overall I love the screen. I use my X220 for a few hours a day for paper writing and coding sometimes during travel and couldn't be happier.

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2 Posts

09-04-2011

Canada

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Re: Faint Ghosting on X220 IPS screen

2011-09-07, 3:14 AM

Thanks for getting back to us.

 

This is what I am finding a bit strange/confusing about your experience; perhaps Mark can clear this up for me.

 

The official Lenovo position seems to be that persistence is inherent in their IPS displays (is this correct?).

If this happens to be the position, what is the purpose of getting it serviced?

Will the existing IPS display simply be replaced by another one that exhibits less image persistence?

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39 Posts

07-15-2011

France

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Re: Faint Ghosting on X220 IPS screen

2011-09-07, 8:58 AM

 @jeff3yan

Check in Intel Graphics control panel. There is an option for disable the "dynamic contrast" (energy saving feature) witch make dynamicaly vary the brightness/contrast of the screen. (A little annoying sometime) It's a checkbox

(My control panel is in french so i can not tell you the exact name)

 

Maybe that's what you are talking about

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769 Posts

08-07-2010

United States of America

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Re: Faint Ghosting on X220 IPS screen

2011-09-07, 18:50 PM

Crmb wrote:

 @jeff3yan

Check in Intel Graphics control panel. There is an option for disable the "dynamic contrast" (energy saving feature) witch make dynamicaly vary the brightness/contrast of the screen. (A little annoying sometime) It's a checkbox

(My control panel is in french so i can not tell you the exact name)

Maybe that's what you are talking about


Adaptive Contrast Enhancement, actually to make black look blacker, OFF by default:

 

John   [tips]   ThinkPad T470p:
Win8.1Pro64 | i7-7820HQ | 32GB | 512GB SSD | WQHD | AC | BT | Cam | FR
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8095 Posts

11-19-2007

United States of America

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Re: Faint Ghosting on X220 IPS screen

2011-09-08, 20:01 PM

All,

 

I've wanted to share an update for several weeks but wanted to hold until I could confirm...

 

As you know have received feedback on this thread from customers who are concerned over persistence of image symptoms on X220 ThinkPads equipped with IPS LCDs.   We believe that there may be some variability in individual LCDs and particular usage / environment which may make this symptoms more apparent for some customers which was evidenced by the range of feedback here - some who didn't notice it, some who did but did see it as an issue, and some who saw it occur in less time then expected, and for who it was a detractor.  

 

In the majority of cases, we believe the previously released tip is accurate...

 

Since our last update, Lenovo has continued to work with our LCD supplier to address the concerns expressed by those in this thread and and version of the panel with revised spec / characteristics has been introduced.  Customers who are experiencing these persistence / ghosting symptoms will be able to contact service for replacement of the LCD once updated parts are in stock - this looks like mid to late September at this time.   These revised panels were introduced  in the production of new X220 systems during the first half of August.

 

I'll post a further update once the parts are confirmed in service stock later this month.   Calling service in advance won't be particularly helpful, so I appreciate your bearing with us another week or two.

 

Thank you all for your patience over these past months.

 

Best regards,

 

Mark

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6 Posts

07-07-2011

Seattle, WA

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Re: Faint Ghosting on X220 IPS screen

2011-09-08, 21:15 PM

Mark, that's great to hear. I appreciate you posting this follow up here and look forward to hearing when the new parts are available.

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