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Re: T520 4243-FS9: downgrade a screen from 1980x1020 to 1366x768

Hello.

 

I've got ThinkPad T520 4243-FS9, it has a FullHD screen with the resolution 1980x1020.

 

I always use external monitor, which has much less DPI, and unfortunately, Linux can't handle that normally: there's no good way to support monitors with different DPI. :( So I consider replacing the screen with the usual HD resolution: 1366x768, e.g. it's 96 dpi, which is pretty fine for me.

 

I asked at https://www.laptopscreen.com , and they reported that the screen I'm looking for is http://www.laptopscreen.com/English/model/IBM-Lenovo/THINKPAD+T520+4243/?hash=915842 , but they also said that I'll need a different video cable:

 

If you wish to use the lower resolution screen in the laptop you will first need to change the video cable in the laptop to a standard HD channel cable (we do not stock video cables, or have cable model info) capable of properly running the lower resolution screen, the current video cable in the laptop will not support the lower resolution screen resolution.

 

But in this thread https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/Upgrading-T520-screen-from-1366-x-768-to-1920-x-1080/td-p/477549 , I see that the guy edit1754 reported:

 

I performed a 1366x768 to 1920x1080 display upgrade on a friend's W510, and can confirm that, at least for his laptop, the cable for the 1366x768 display is a 40-pin dual-channel LVDS cable that will support a 1920x1080-resolution display.

 

So is it possible to say for sure, do I need for different video cable or not? Serial number of my laptop is: R9T7RV4.

 

Thanks in advance.

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Solution

Re: T520 4243-FS9: downgrade a screen from 1980x1020 to 1366x768

I modded two T510 and one T520 from HD to FHD and a W510 from HD+ to FHD using the same LCD cable, so I think you can do the opposite as well...

 

Edit: Be aware that the HD panels image quality and viewing angles are rather poor. You're going to do a big step down in image quality

 

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T520 4243-FS9: downgrade a screen from 1980x1020 to 1366x768

Solution

Re: T520 4243-FS9: downgrade a screen from 1980x1020 to 1366x768

I modded two T510 and one T520 from HD to FHD and a W510 from HD+ to FHD using the same LCD cable, so I think you can do the opposite as well...

 

Edit: Be aware that the HD panels image quality and viewing angles are rather poor. You're going to do a big step down in image quality

 

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Re: T520 4243-FS9: downgrade a screen from 1980x1020 to 1366x768

Thanks.

Poor image quality is still better than being unable to use external monitor normally.

Plus, some applications are ignorant about dpi settings, which causes them to look terrible on hi-dpi screens.

Linux is not yet ready for the hi-dpi world. That's sad of course :(
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Re: T520 4243-FS9: downgrade a screen from 1980x1020 to 1366x768

Sad to hear that... Good  luck with the downgrade, and make sure you get a panel with a proper Lenovo FRU#

 

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