Difference between revisions of "HBW test/test"
From ESS-WIKI
(→set corresponding display dtbo in U-BOot) |
(→On Host PC) |
||
| Line 5: | Line 5: | ||
* PTN3460 Programming Guide | * PTN3460 Programming Guide | ||
=== On Host PC === | === On Host PC === | ||
| − | * | + | * EDID config (128 bytes) to the new LVDS panel |
* (optional) one utility to edit EDID config | * (optional) one utility to edit EDID config | ||
| + | |||
=== On RSB-3810 (Ubuntu) === | === On RSB-3810 (Ubuntu) === | ||
* i2c-tools installed | * i2c-tools installed | ||
Revision as of 08:40, 2 January 2024
Prerequisites
- PTN3460 Programming Guide
On Host PC
- EDID config (128 bytes) to the new LVDS panel
- (optional) one utility to edit EDID config
On RSB-3810 (Ubuntu)
- i2c-tools installed
sudo apt update
sudo apt install i2c-tools
(use EDID 6 and LVDS panel, G070VW01V0, as example below)
Convert EDID config to shell script
On RSB-3810 (Ubuntu)
EDIDNEW=6 # set EDID
EDIDBIN=g070vw01v0.bin
SCRIPT=~/set_new_edid.sh
REG81=$(printf "0x%02x" 0) # Please refer to the PTN3460 Programming Guide to set correct value
REG84=$(printf "0x%02x" $((2*EDIDNEW + 1)))
REG85=$(printf "0x%02x" $EDIDNEW)
echo -e "REG81:$REG81\nREG84:$REG84\nREG85:$REG85\n"
cat << EOT > $SCRIPT
#!/bin/bash
i2cset -f -y 2 0x20 0x85 $REG85 b
$(
xxd -c 16 -ps $EDIDBIN |
sed "s/../0x& /g; s/ *$//" |
for ADDR in `seq 0x00 0x10 0x70`; do
read
echo i2cset -f -y 2 0x20 `printf "0x%02x" $ADDR` $REPLY i
done
)
i2cset -f -y 2 0x20 0x81 $REG81 b
i2cset -f -y 2 0x20 0x84 $REG84 b
i2cset -f -y 2 0x20 0xe8 0x01 0x78 0x45 0x56 i
EOT
chmod +x $SCRIPT
run the script and reboot
sudo $SCRIPT
sudo reboot
set matched device tree overlay (dtbo) in U-Boot
On RSB-3810 (U-Boot)
Press any key to stop auto boot
- Multi-display (HDMI + LVDS)
- The LVDS is always major display that has nothing to do with the specified order.
setenv DISPLAY hdmi.dtbo lvds6.dtbo
saveenv
reset
- LVDS only
setenv DISPLAY lvds6.dtbo
saveenv
reset