Differences

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--- en:vu8_update_edid [2016/12/14 14:51]
joy.cho [Update Guide (1) - Linux Host PC]
+++ en:vu8_update_edid [2017/03/21 13:57] (current)
joy.cho [Write EDID binary]
@@ Line 1: / Line 1: @@
-====== How to Update VU8C EDID ======
+====== How to Check and Write VU8C EDID ======
+<WRAP center round important>
+  *  This wiki is a guide only for the uses who want to use ODROID-VU8C **with OTHER products except ODROID-C1+/C2**.
+  * On our production line, EDID data is already written on VU8C eeprom, so normally, you don't need to update EDID data by force.
+</WRAP>
+<WRAP center round important>
+  * If it seems VU8C is not detected normally from the host, first check the EDID status as described in the following section, 'How to check EDID status', then try the update steps.
+  * Before the update process, please make sure which display path is connected to VU8C via HDMI.
+</WRAP>
 ===== Update Guide - Linux Host PC =====
@@ Line 69: / Line 78: @@
 Please download source codes from the github and build it.
 <code>
+# sudo apt-get install git
 # git clone https://github.com/bulletmark/edid-rw
 # cd edid-rw
 # make
+</code>
+==== How to check EDID status ====
+You can check if the EDID data works normally using **edid-rw**. \\
+**edid-rw** loads the raw data of EDID and **edid-decode** parses it based on EDID specification.
+<code>
+$ edid-rw  [bus no.]  | edid-decode
+</code>
+Here is an example.\\
+If it works normally, you can the information as below.\\
+If not so, all of data patterns are shown as 0's sequence\\
+and no timing and clock description is listed.
+<code>
+$ sudo ./edid-rw 4 | edid-decode
+Extracted contents:
+header:          00 ff ff ff ff ff ff 00
+serial number:   21 6c 00 00 00 00 00 00 0c 1b
+version:         01 03
+basic params:    6d 23 1a 78 ea
+chroma info:     5e c0 a4 59 4a 98 25 20 50 54
+established:     00 08 00
+standard:        61 40 01 01 01 01 01 01 01 01 01 01 01 01 01 01
+descriptor 1:    64 19 00 40 41 00 26 30 08 90 36 00 63 0a 11 00 00 18
+descriptor 2:    00 00 00 ff 00 4c 69 6e 75 78 20 23 30 0a 20 20 20 20
+descriptor 3:    00 00 00 fd 00 3b 3d 2f 31 07 00 0a 20 20 20 20 20 20
+descriptor 4:    00 00 00 fc 00 48 4b 5f 56 55 38 43 0a 20 20 20 20 20
+extensions:      00
+checksum:        7d
+Manufacturer: HKL Model 0 Serial Number 0
+Made week 12 of 2017
+EDID version: 1.3
+Analog display, Input voltage level: 0.7/0.7 V
+Sync: Separate Composite Serration
+Maximum image size: 35 cm x 26 cm
+Gamma: 2.20
+DPMS levels: Standby Suspend Off
+RGB color display
+First detailed timing is preferred timing
+Established timings supported:
+x768@60Hz
+Standard timings supported:
+x768@60Hz
+Detailed mode: Clock 65.000 MHz, 355 mm x 266 mm
+1032 1176 1344 hborder 0
+  771  777  806 vborder 0
+               -hsync -vsync
+Serial number: Linux #0
+    Monitor ranges: 59-61HZ vertical, 47-49kHz horizontal, max dotclock 70MHz
+Monitor name: HK_VU8C
+     Checksum: 0x7d
 </code>
@@ Line 86: / Line 148: @@
 </code>
+<WRAP left round tip 70%>
+We're preparing to release a new edid data binary by adjusting detailed timing to fix ODROID-C2 display auto detection issue.
+</WRAP>
 == Write EDID binary and Check result ==
@@ Line 105: / Line 170: @@
 <code>
 $ sudo ./edid-rw 4 | edid-decode
-Extracted contents:
-header:          00 ff ff ff ff ff ff 00
-serial number:   21 6c 30 00 01 00 00 00 0a 14
-version:         01 03
-basic params:    80 10 0c 78 0a
-chroma info:     cf 74 a3 57 4c b0 23 09 48 4c
-established:     21 08 00
-standard:        61 40 45 40 61 40 95 00 01 01 01 01 01 01 01 01
-descriptor 1:    64 19 00 22 41 00 26 30 14 0a 44 00 a0 78 00 00 00 1e
-descriptor 2:    64 19 80 22 41 00 26 30 14 0a 44 00 a0 78 00 00 00 9e
-descriptor 3:    00 00 00 fc 00 4d 53 74 61 72 20 44 65 6d 6f 0a 20 20
-descriptor 4:    00 00 00 fd 00 32 4b 1e 50 12 00 0a 20 20 20 20 20 20
-extensions:      00
-checksum:        50
-Manufacturer: HKL Model 30 Serial Number 1
-Made week 10 of 2010
-EDID version: 1.3
-Digital display
-Maximum image size: 16 cm x 12 cm
-Gamma: 2.20
-Supported color formats: RGB 4:4:4, YCrCb 4:2:2
-First detailed timing is preferred timing
-Established timings supported:
-x480@60Hz
-x600@60Hz
-x768@60Hz
-Standard timings supported:
-x768@60Hz
-x600@60Hz
-x768@60Hz
-x900@60Hz
-Detailed mode: Clock 65.000 MHz, 160 mm x 120 mm
-1044 1054 1314 hborder 0
-  772  776  806 vborder 0
-               +hsync +vsync
-Detailed mode: Clock 65.000 MHz, 160 mm x 120 mm
-1172 1182 1442 hborder 0
-  772  776  806 vborder 0
-               +hsync +vsync interlaced
-Monitor name: MStar Demo
-  Monitor ranges: 50-75HZ vertical, 30-80kHz horizontal, max dotclock 180MHz
-Checksum: 0x50
 </code>
@@ Line 171: / Line 193: @@
 </code>
-===== Update Guide (2) - ODROID-C2/C1+ =====
-(Under Construction...)
-You can also update VU8C edid binary on ODROID-C2 board.\\
-Almost instructions are same as aforementioned for Linux Host PC except preparing I2C driver for HDMI DDC. \\
-The version should be [......] to activate i2c under dev node.
-== Utility  ==
-<code>
-# sudo apt-get install i2c-tools
-# sudo apt-get install python-smbus edid-decode
-# sudo apt-get install git
-# git clone https://github.com/bulletmark/edid-rw
-# cd edid-rw
-# make
-</code>
-== Instruction  ==
-<code>
-# i2cdetect -l
-i2c-0   i2c             i2c_gpio                                I2C adapter
-# ./edid-rw -w 0 < edid_vu8c.bin
-# ./edid-rw 0 | edid-decode
-</code>