i.MX6 output 1366x768 resolution issue

[kennywang]

Hi all,

I have an VGA displayer connected to my board , I want to output 1366x768 resolution on the displayer. In mxc_edid.c file I've add the lines:

{

        NULL, 60, 1368, 768, 12232, 274, 48, 17, 2, 32, 5,

       0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA,

    },

When I used this resolution  the  displayer  display 1280x768 resolution I think there are some wrong with the IPU drivers, Any ideas about this ?

[igorpadykov · Accepted solution]

Hi kenny

first you need to make sure that your monitor supports 1366x768,

try this from Linux command line:

cat /sys/class/graphics/fb0/modes

Note i.MX6 HDMI module natively does not support this mode,

supported modes are given in Table 33-3 Video Modes IMX6DQRM

Chapter 18 MX53UG shows how to add new resolution to VGA LCD

Connected to IPU Display Port 0 (Example 18-2), also

one needs to add kernel command line like 1366x768M@60

Best regards

igor

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[kennywang]

Hi igorpadykov

Thank you for your reply, I use the 1360x768 reslution instead of 1366x768, the monitor display 1366x768 reslution. I don't know the reason.