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March 12th, 2014 12:00
latitude e6440 lvds/edp question
A question for the LCD/engineering experts:
Under Intel Graphics Control Panel, it shows that my laptop display is an eDP device. However, I found out that my LCD is a LP140WH2-TLTB display which is an LVDS device. Looking at the LCD cable does show 40 pins which is consistent with LVDS rather than eDP. I was just wondering why the control panel would show eDP. Is it that Dell setup the notebook to run LVDS over eDP?
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ejn63
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March 12th, 2014 13:00
The display is LVDS as you note. Intel has some information here
http://www.intel.com/content/www/us/en/intelligent-systems/intel-embedded-graphics-drivers/faq-display-outputs.html
There are some systems out there that have started to use eDP (Lenovo's X240t convertible is one of them). It's possible the Intel driver can't distinguish the two.
http://shop.lenovo.com/us/en/laptops/thinkpad/x-series/x240/