AnsweredAssumed Answered

lvds display interlace on I.MX8M board

Question asked by coin du on Feb 27, 2019
Latest reply on Feb 28, 2019 by coin du

 HI all

         I meet some problem to display  with dual lvds signal. 

         The screen resolution is 1920x1080 and finally display interlace.  by write data to /dev/fb0  found some clues .

 

         if i want draw a red line, which X axis=0, but it will display on X axis = 1. 

         if i want draw a read line, which X axis =1 , it will display on X axis = 0.

 

        for(x = 0; x< height; x++){

                  draw vertical line which axis = X

         }

         the final display will be

         1  0 3 2 5 4 7 6 ...... 1919 1918

         |   |  |   |  |  |  |  | ........  |       |

         |   |  |   |  |  |  |  | ........  |       |

         |   |  |   |  |  |  |  | ........  |       |

         |   |  |   |  |  |  |  | ........  |       |

 

        has some parameter to fix it ?

Outcomes