i.MX8M could not identify 1200*1920 resolution display

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i.MX8M could not identify 1200*1920 resolution display

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twinkle
Contributor I

I have a development board with i.MX8M processor from boundary devices. When the display is connected on HDMI interface via MIPI DSI to HDMI adapter, the processor could not identify it. The display is being identified on windows os. Also, the development board can identify other 1080p display. 

Here is the link of board and linux os:

https://boundarydevices.com/product/nitrogen8m-som/

https://boundarydevices.com/ubuntu-focal-20-04-unified-image-for-nitrogen8-boards/

Also the display information from the edid:

Block 0, Base EDID:
  EDID Structure Version & Revision: 1.3
  Vendor & Product Identification:
    Manufacturer: LTM
    Model: 11266
    Serial Number: 16843009
    Made in: week 1 of 2011
  Basic Display Parameters & Features:
    Digital display
    Maximum image size: 89 cm x 50 cm
    Gamma: 2.20
    RGB color display
    First detailed timing is the preferred timing
  Color Characteristics:
    Red  : 0.6250, 0.3398
    Green: 0.2802, 0.5947
    Blue : 0.1552, 0.0703
    White: 0.2832, 0.2978
  Established Timings I & II: none
  Standard Timings: none
  Detailed Timing Descriptors:
    DTD 1:  1200x1920   59.998 Hz   5:8   120.235 kHz 163.520 MHz (1200 mm x 1920 mm)
                 Hfront  120 Hsync   8 Hback  32 Hpol P
                 Vfront   63 Vsync   5 Vback  16 Vpol P
    Empty Descriptor
  Display Range Limits:
    Monitor ranges (GTF): 48-62 Hz V, 30-70 kHz H, max dotclock 150 MHz
    Display Product Name: 'LT6911C'
Checksum: 0xda

 

Can someone please help me identify and resolving the problem. Also, going through the other threads, I found that the processor is not able to work with non-standard resolution of Pixel clock. But not sure, how to resolve it.

 

Thanks and regards,

Twinkle

 

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