I use the command “get-edid” to get the value of EDID, it’s okay in the tk1, but is not work in the TX1 even the common board.
I get the result like this:
=======================================================================================================
No EDID on bus 0
No EDID on bus 1
No EDID on bus 3
No EDID on bus 4
No EDID on bus 5
No EDID on bus 6
Bus 2 doesn’t really have an EDID…
I still can get the EDID value by xrandr --verbose :
========================================================================================================
ubuntu@tegra-ubuntu:~/Desktop/read-edid-3.0.2/get-edid$ xrandr --verbose
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
HDMI-0 connected primary 1920x1080+0+0 (0x18c) normal (normal left inverted right x axis y axis) 530mm x 300mm
Identifier: 0x18b
Timestamp: 21090
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
TegraOverlayBlendmode: Opaque
supported: Opaque, SourceAlphaBlend, PremultSourceAlphaBlend
TegraOverlayPriority: 255
range: (0, 255)
EDID:
00ffffffffffff005a6331bb01010101
231a010380351e782e6435a5544f9e27
125054bfef80b300a940950090408180
814081c00101023a801871382d40582c
4500132b2100001e000000ff00554732
3136333530303839390a000000fd0018
900fb422000a202020202020000000fc
0058473234303120534552494553018d
020323f14e90050403071f1421221312
013f4023097f078301000067030c0010
000044023a801871382d40582c450013
2b2100001ea483806a70384d400820f8
0c132b2100001c011d007251d01e206e
285500132b2100001e8c0ad08a20e02d
10103e9600132b210000180000000000
000000000000000000000000000000df
===================================================================================================
I change the source code of get-edid command to let it show the result which get from the file /dev/i2c-2, the value is always the same in any monitor ,the value is :
====================================================================================================
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 01 00 0d 00 84 08 e8 03 04 50 00 00 00 00 00 00 ?.?.???P…
10: 00 00 a0 0e 36 39 39 2d 38 32 31 38 30 2d 31 30 …??699-82180-10
20: 30 30 2d 34 30 30 20 50 2e 30 ff ff ff ff ff ff 00-400 P.0…
30: ff ff 95 78 66 4b 04 00 96 78 66 4b 04 00 00 00 …?xfK?.?xfK?..
40: 00 00 00 00 97 78 66 4b 04 00 30 33 32 33 36 31 …?xfK?.032361
50: 36 31 32 33 37 34 34 ff ff ff ff ff ff ff ff ff 6123744…
60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff …
70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff …
80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff …
90: ff ff ff ff ff ff 4e 56 43 42 1c 00 4d 31 00 00 …NVCB?.M1…
a0: 95 78 66 4b 04 00 96 78 66 4b 04 00 97 78 66 4b ?xfK?.?xfK?.?xfK
b0: 04 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ?..
c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff …
d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff …
e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff …
f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff d8 …?
What should I do to use the get-edid to get the correct EDID value?