T400 - LED backlit screen?
Posted: Mon May 23, 2016 8:35 am
I bought T400, how to check if my laptop has LED backlight?
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T400 - LED backlit screen?
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Re: T400 - LED backlit screen?
Posted: Mon May 23, 2016 8:59 am
A quick way would be to use a software to read hardware details like HWInfo, then google the model number or check again this list from Thinkwiki
Re: T400 - LED backlit screen?
Posted: Mon May 23, 2016 9:46 am
and in linux?
Re: T400 - LED backlit screen?
Posted: Mon May 23, 2016 10:49 am
Find a package called read-edid (or similar) from your distro's package manager and install it.
Launch a terminal window, acquire superuser privileges (via su or sudo), then type:
Hopefully you'll get a usable EDID string or model identifier. Run through Google and check the results.
Launch a terminal window, acquire superuser privileges (via su or sudo), then type:
Code: Select all
get-edid | parse-edidRe: T400 - LED backlit screen?
Posted: Mon May 23, 2016 11:06 am
In Linux you can check the file /var/log/Xorg.0.log and look for the "EDID" string, you may find the model somewhere close to that string.
Edit: I like Axur's approach more
Edit: I like Axur's approach more
Re: T400 - LED backlit screen?
Posted: Mon May 23, 2016 11:11 am
Code: Select all
root@x200:/home/linux# get-edid
This is read-edid version 3.0.1. Prepare for some fun.
Attempting to use i2c interface
No EDID on bus 0
No EDID on bus 1
No EDID on bus 3
No EDID on bus 4
No EDID on bus 5
No EDID on bus 6
1 potential busses found: 2
128-byte EDID successfully retrieved from i2c bus 2
������0�3@�x���XS�($PT�'��Q�00 60��!��Q�00 60��
2�
Looks like i2c was successful. Have a good day.
(2
�LP141WP1-TLB8<root@x200:/home/linux#http://www.thinkwiki.org/wiki/TFT_display
No LED
Re: T400 - LED backlit screen?
Posted: Wed May 25, 2016 11:35 pm
Its best to confirm with google so you have a full PDF spec sheet etc.
However its going to be used to confirm what you already see. I have a few T400s and out of all the ones I've seen, I've only seen ONE model that has an LED screen.
I beleive they were added very late into the field and they were special order.
The CCFL panel T400s I have are all a bit sepia/grey looking, perhaps moreso given they are well over 5yrs old and have maybe thousands of hours.
My one special LED T400 looks like any other T410 type LED display...ie. cool white but otherwise, questionable quality.
This is one of the reasons why I dont buy any more T400s even though I do like the machines... the chances of getting an LED T400 is very very slim.
I have consulted with many corporates who have deployed decommissioned and still use T400 machines in the office.
However its going to be used to confirm what you already see. I have a few T400s and out of all the ones I've seen, I've only seen ONE model that has an LED screen.
I beleive they were added very late into the field and they were special order.
The CCFL panel T400s I have are all a bit sepia/grey looking, perhaps moreso given they are well over 5yrs old and have maybe thousands of hours.
My one special LED T400 looks like any other T410 type LED display...ie. cool white but otherwise, questionable quality.
This is one of the reasons why I dont buy any more T400s even though I do like the machines... the chances of getting an LED T400 is very very slim.
I have consulted with many corporates who have deployed decommissioned and still use T400 machines in the office.
Re: T400 - LED backlit screen?
Posted: Thu May 26, 2016 12:10 am
Nope.TonyJZX wrote:
I beleive they were added very late into the field and they were special order.
We've bought a brand new T400 directly from Lenovo less than six months after it was introduced and it sported a LED 1440x900 panel. Which was junk. And I'm being kind here.