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21115 Posts

12-20-2008

Australia, Melbourne

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 5:48 AM

ghosting or image retention problem is something that plagued many IPS monitor.

The fix this issue on these previous IPS LCD, usually, you cycle through some pure white or black background image everytime you notice an image retention problem. Or play a movie that is really colourful, like computer animated movies.

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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63 Posts

06-20-2011

UK

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 8:28 AM

@lead_org
The question is simple, should or should not the X220 screen show ghost images?

If your answer is no then there is a problem. I am sorry lead_org but what you suggested that "cycle through some pure white or black background image everytime you notice an image retention problem" is just plain ridiculous. Ok imagine this, I suggest to you that everytime when you want to start you car in the morning you have to push it around the block and then shake the car body well so the fuel will be mixed properly, then start the engine. Obviously this would not happen and you would be very pissed.

Now, I have question to those who have this retention problem. Has any of you tried the unit with the 90w power supply? I can't seem to find this test scenario. The reason why I am asking this is because it is possible that the display unit does not receive proper power and hence starts acting in odd ways. Theoretically this issue can be related to all the other throttling and fan problems.

Can somebody give a try on a 90w power supply?

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10 Posts

06-29-2011

Germany

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 8:47 AM

This issue is definitely there with the 90W power supply. In fact, the first time I switched on the laptop I used the 90W and made a hard disk image under Linux.


So it's neither PSU nor driver related.

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21115 Posts

12-20-2008

Australia, Melbourne

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 9:54 AM
some of the early iMac with LG IPS had the image retention problem, which were addressed in later iMac. This should be a panel problem.

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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63 Posts

06-20-2011

UK

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 10:27 AM
This poor X220 has all kinds of problems from display to throttling CPU. I remember those old iMacs ... people were pissed :-)
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6 Posts

06-21-2011

UK

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 15:08 PM

I would agree with the timings mentioned: 15-30 minutes to burn in and then 30 minutes plus to fade unless the screen is rapidly switched (e.g. gaming, film etc). The burn is not visible on a white or black background, but mid-tones make it very clear. Lowering the brightness obviously lessens the impact (running it at 10 rather than the full 15 for example), but this is not a solution. I tried switching the display to 60hz refresh on the off-chance, but no change as I would expect. I imagine Lenovo's supplier on this one is going to get a kicking.

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36 Posts

06-21-2011

United States

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 18:18 PM

@methanolninja

 

"I imagine Lenovo's supplier on this one is going to get a kicking."

 

Unfortunately it seems as if Lenovo has decided to kick its paying customers instead by pretending there is no problem. If Lenovo doesn't fix the faulty screen, I wonder how few current customers would actually decide to buy another Thinkpad from them again?

 

 

To answer the previous question asked of us, in my situation the ghosting begins in 5-10 minutes from use. It progressively gets worse until you can read text left on the screen and even see traces of color. This is a horrible, and inexcusable, problem for me since I use this tablet professionally in a photography studio where screen quality is very important.

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271 Posts

05-31-2011

San Francisco

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Re: Faint Ghosting on X220 IPS screen

2011-07-01, 20:19 PM

wrote:
This is a horrible, and inexcusable, problem for me since I use this tablet professionally in a photography studio where screen quality is very important.

 


Hi Amscram,

 

Do you see gradient banding on your X220? If screen quality is very important to you, gradient banding should be even more of a problem than ghosting. I noticed it almost right away but I seem to be the only one who has mentioned it. I don't know if it's caused by the screen itself or the Intel graphics adapter.

 

Here's a test image: http://www.lagom.nl/lcd-test/gradient.php. Compare it to other laptop and desktop monitors. Gradients are smooth on my desktop PC (Dell monitor and low end Radeon card) and MacBook Pro, but banding is easily visible on my X220 with IPS screen.

 

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106 Posts

06-19-2011

Canada

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Re: Faint Ghosting on X220 IPS screen

2011-07-02, 3:33 AM

wrote:

1) Ghosting premium screen

2) Fan pulsing and weird noise

3) touchpad issues

4) throttling issues that renders the X220 to perform like a 5-6 years old laptop

5) Issues with SSD added


der72,

 

I have started a tracking thread on unresolved issues here:

http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/Unresolved-X220-issues/m-p/461613

 

I am not aware of any touchpad issues.  Please point me to the relevant thread.

 

Thank you.

 

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2029 Posts

12-02-2007

Australia

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Re: Faint Ghosting on X220 IPS screen

2011-07-02, 6:47 AM

RichardW wrote:

 

Do you see gradient banding on your X220?

 


There's no gradient banding evident at all on my X220 IPS display.

 

Cheers,

 

Bill

------------------------------
I don't work for Lenovo
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