Finally, fixed poor text and image on dell u2410 with MBPr

Hi folks,

Finally, I fixed display issue with MacBook Pro with Retina display which connected to thunderbolt to DP or Thunderbolt to HDMI even HDMI to HDMI.

Solution would be:

Press Menu of U2410 > Display settings > Sharpness : 0

Then it displays fine.

What the ~.

I spent 3 months in vain with watching poor text and image.

Take care.