How to make xavier to ouput 4K data by default

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

Hi.
I want to 15220000.nvdisplay to ouput 4k data by default， when 15220000.nvdisplay read edid fail.
please give some advices. thanks!

3

Hi,

Generally this could be hardware problem. This issue is only on your custom board, right?

4

yes, it’s my custom board.
Power up, when I don’t connect the cable of hdmi2.0, the driver only output 720p, But power up. when I connect the cable of hdmi2.0. the driver can ouput 3840x2160.
Is there a way to tell the driver to output 3840x2160P without edid?
like this:

static const char default_720p_edid[256] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
    0x3a, 0xc4, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x05, 0x1b, 0x01, 0x03, 0x80, 0x59, 0x32, 0x8c,
    0x0a, 0xe2, 0xbd, 0xa1, 0x5b, 0x4a, 0x98, 0x24,
    0x15, 0x47, 0x4a, 0x20, 0x00, 0x00, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x1d,
    0x00, 0x72, 0x51, 0xd0, 0x1e, 0x20, 0x6e, 0x28,
    0x55, 0x00, 0x75, 0xf2, 0x31, 0x00, 0x00, 0x1e,
    0x01, 0x1d, 0x00, 0xbc, 0x52, 0xd0, 0x1e, 0x20,
    0xb8, 0x28, 0x55, 0x40, 0x75, 0xf2, 0x31, 0x00,
    0x00, 0x1e, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x32,
    0x3d, 0x0f, 0x2e, 0x08, 0x00, 0x0a, 0x20, 0x20,
    0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
    0x00, 0x4e, 0x56, 0x49, 0x44, 0x49, 0x41, 0x00,
    0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xf9,
    0x02, 0x03, 0x19, 0x71, 0x46, 0x84, 0x13, 0x05,
    0x14, 0x03, 0x12, 0x23, 0x09, 0x07, 0x07, 0x83,
    0x01, 0x00, 0x00, 0x65, 0x03, 0x0c, 0x00, 0x10,
    0x00, 0x01, 0x1d, 0x80, 0x18, 0x71, 0x1c, 0x16,
    0x20, 0x58, 0x2c, 0x25, 0x00, 0x75, 0xf2, 0x31,
    0x00, 0x00, 0x9e, 0x01, 0x1d, 0x80, 0xd0, 0x72,
    0x1c, 0x16, 0x20, 0x10, 0x2c, 0x25, 0x80, 0x75,
    0xf2, 0x31, 0x00, 0x00, 0x9e, 0x8c, 0x0a, 0xd0,
    0x8a, 0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96,
    0x00, 0x75, 0xf2, 0x31, 0x00, 0x00, 0x18, 0x8c,
    0x0a, 0xd0, 0x90, 0x20, 0x40, 0x31, 0x20, 0x0c,
    0x40, 0x55, 0x00, 0x75, 0xf2, 0x31, 0x00, 0x00,
    0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xca,
};

thanks!

5

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

Are we talking about the “cable” has to support “Hdmi 2.0” to make Jetson able to read EDID?

7

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