Jetson TK1 R21.5 and 7" HDMI display... why not?

Autonomous Machines Jetson & Embedded Systems Jetson TK1
21

Hi Myzhar,

Since I don’t have such HDMI panel, I can only point out where to check.

According to your kernel log,

[1.529381] Failed to read EDID after 5 times. Giving up.

Looks like driver on r21.5 cannot read EDID from your panel(failed 5 times and hence disable the HDMI). Could you add some debug log in this function in edid.c to check where the error is hit?

///kernel/drivers/video/tegra/dc/edid.c
int tegra_edid_get_monspecs(struct tegra_edid *edid, struct fb_monspecs *specs)

You can also compare the result with r24.2.1 to figure out why TX1 passes

22

Hi Myzhar,

Have you managed to add some debug log to find the possible error?
Any information can be shared?

Thanks

23

Hi Kay,

sorry but I had to switch to another project with TX1 and had not the possibility to test it again.
I will let you know as soon as possible.

Walter