Hi supporters,
here i’m facing one issue with VIM3
when i install android pi OS and it is working with HDMI display
android pi os: VIM3_Pie_V210128
but when i install UBUNTU it is not working with HDMI Display
ubuntu os : VIM3_Ubuntu-gnome-focal_Linux-4.9_arm64_EMMC_V0.9-20200530
i’m installing in VIM3 EMMC
so please help to solve this issue
Thanks
i changed os and
now it’s working with HDMI display
but not with MIPI Display(1920x1080p)
mipi display is totally black
Please help for the same
You can’t use MIPI LCD and HDMI at the same time if you use ubuntu. If you want to use the MIPI LCD please remote the HDMI cable.
yes but i have attached LCD only still not working
LCD is with size 15.1inch and 1920x1080 resolution
so is there any settings required or it should work
@manojec9396 how did you attach the LCD ? if it is not the TS050 screen, some drivers have to be changed to make it work in linux, please show the setup
Thanks for your reply
Yes the display is not TS050,
it is another display with 1920x1080 resolution and with eDP interface so
i have used one bridge board which convert VIM3 MIPI interface to eDP Display interface.
and bridge board is already configured for mipi input and edp output by given parameters of vim3 and lcd display
so now i want to know that is there any changes needed with vim3 and if yes then what?
please help me
first thing is you need to enable the mipi output and get appropriate linux drivers for it, I don’t know about the specifics of what you need to do, but maybe @numbqq or @Frank can give you a gist…
Okay thanks @Electr1 ,
but i think we don’t need driver for this because there is one MCU which configure the Bridge IC
so bridge board should be like plug play but i’m not sure about that.
here you can this image
Hello @numbqq , @Frank
can you please help me for this problem
Thanks
@manojec9396 even then the bridge has to communicate with the device and appear as a “pseudo” display, for it to enumerate and send the correct signals with proper timing etc.
i found following configuration in
/boot.env.txt
#############################DO NOT TOUCH THIS OPTION#############################
rootdev=UUID=ce34b447-6494-4c1f-bba0-b0db9b6738cb
#############################DO NOT TOUCH THIS OPTION#############################
# Cooling FAN mode
# auto - auto schedule the FAN speed depend on the CPU temperature
# low - FAN low speed
# mid - FAN middle speed
# high - FAN high speed
fan_mode=auto
# DMA coherent_pool size
# Don't touch unless you know what you are doing
dma_size=2M
# HDMI resolution auto detection
# yes - auto detection
# no - set HDMI resolution via 'hdmi' node
hdmi_autodetect=yes
# HDMI mode
# Resolution Configuration
# Symbol | Resolution
# ----------------------+-------------
# "480x272p60hz" | 480x272 Progressive 60Hz
# "480x320p60hz" | 480x320 Progressive 60Hz
# "480p60hz" | 720x480 Progressive 60Hz
# "576p50hz" | 720x576 Progressive 50Hz
# "720p60hz" | 1280x720 Progressive 60Hz
# "720p50hz" | 1280x720 Progressive 50Hz
# "1080p60hz" | 1920x1080 Progressive 60Hz
# "1080p50hz" | 1920x1080 Progressive 50Hz
# "1080p30hz" | 1920x1080 Progressive 30Hz
# "1080p24hz" | 1920x1080 Progressive 24Hz
# "1080i60hz" | 1920x1080 Interlaced 60Hz
# "1080i50hz" | 1920x1080 Interlaced 50Hz
# "2160p60hz" | 3840x2160 Progressive 60Hz
# "2160p50hz" | 3840x2160 Progressive 50Hz
# "2160p30hz" | 3840x2160 Progressive 30Hz
# "2160p25hz" | 3840x2160 Progressive 25Hz
# "2160p24hz" | 3840x2160 Progressive 24Hz
# "smpte24hz" | 3840x2160 Progressive 24Hz SMPTE
# "2160p60hz420" | 3840x2160 Progressive 60Hz YCbCr 4:2:0
# "2160p50hz420" | 3840x2160 Progressive 50Hz YCbCr 4:2:0
# "640x480p60hz" | 640x480 Progressive 60Hz
# "800x480p60hz" | 800x480 Progressive 60Hz
# "800x600p60hz" | 800x600 Progressive 60Hz
# "1024x600p60hz" | 1024x600 Progressive 60Hz
# "1024x768p60hz" | 1024x768 Progressive 60Hz
# "1280x800p60hz" | 1280x800 Progressive 60Hz
# "1280x1024p60hz" | 1280x1024 Progressive 60Hz
# "1360x768p60hz" | 1360x768 Progressive 60Hz
# "1440x900p60hz" | 1440x900 Progressive 60Hz
# "1600x900p60hz" | 1600x900 Progressive 60Hz
# "1600x1200p60hz" | 1600x1200 Progressive 60Hz
# "1680x1050p60hz" | 1680x1050 Progressive 60Hz
# "1920x1200p60hz" | 1920x1200 Progressive 60Hz
# "2560x1080p60hz" | 2560x1080 Progressive 60Hz
# "2560x1440p60hz" | 2560x1440 Progressive 60Hz
# "2560x1600p60hz" | 2560x1600 Progressive 60Hz
# "3440x1440p60hz" | 3440x1440 Progressive 60Hz
hdmi=720p60hz
# Specify the initial console log level (0~8)
loglevel=7
# User kernel args
# Add customer kernel args here
user_kernel_args=
# Maximum CPU Frequency of VIM3 Little Core A53
# 500/667/1000/1200/1398/1512/1608/1704/1800(default)/1908/2016/2100/2208
max_freq_a53=1800
# Maximum CPU Frequency of VIM3 Big Core A73
# 500/667/1000/1200/1398/1512/1608/1704/1800/1908/2016/2100/2208(default)/2304/2400
max_freq_a73=2208
# Device Tree Overlays
# uart3 -- Enable UART3 (uart_C, GPIO Header PIN15 & PIN16)
# pwm_f -- Enable PWM_F (GPIO Header PIN35)
# i2c3 -- Enable i2c3 (GPIO Header PIN22 & PIN23)
# spi1 -- Enable SPI1 (GPIO Header PIN15 & PIN16 & PIN35 & PIN37), pwm_f need to be removed
# os08a10 -- Enable OS08A10 Camera
# onewire -- Enable onewire bus (GPIO Header PIN15)
# disable-ts050 -- Disable TS050 LCD
# m2x-eth -- Enable M2X 100M ethernet. Note: 1G ethernet will be disabled.
# otg-device -- Enable USB OTG Device
overlays=uart3 pwm_f i2c3 os08a10
Hello @Electr1 @numbqq @Frank
any solution please
i need to drive this LCD using VIM3 board
please help me
@manojec9396 this is not a plug and play solution, you have to do manual configuration and set the driver parameters in the kernel by yourself
please check the TS050 implementation, create and modify it to your liking, and test
best of luck
Hello @manojec9396
As @Electr1 said, you have to configure it yourself, you can check how TS050 works, and you need to make it works in uboot first, then is kernel.
Yes @numbqq ,
But i don’t know how,where and what kind of changes needed
because i’m not aware of linux kernal and boot and all
and how to check and make sure current configuration
so please help me .guide me.
i’m using Ubuntu 4.9
thanks
Have you configured the panel timing correct in file arch/arm64/boot/dts/amlogic/khadas-ts050-panel.dtsi ？
hi @numbqq
how i can get this path?
and when to configure file?
before installation or after installation
Thanks
You need to configure lcd timging in kernel dts.
After configuration, you need to rebuild the dtb debian package and copy them to board to install. You can check here:
Hello @numbqq
thanks but i have installed using usb installer .img OS
so i don’t know how to do this
and for which os
can you please guide me steps.
for this
“”"""""""""""""""""""
You need to configure lcd timging in kernel dts.
After configuration, you need to rebuild the dtb debian package and copy them to board to install. “”"""""""""""""""""""
Thanks
@manojec9396 those details must be provided by you from your bridge’s datasheet
check that and modify the appropriate *.dtsi shown by @numbqq