Hi all
First of all, I would like to congratulate for this image and for each of you that bring this initiative to life. It’s very good works.
I have a RPI3 with waveshare32 but I still have my screen in white after a fresh installation Dietpi V152.
I must to tell you I d’ont have a lot of knowledge 
and I hope you can help me.
# /DietPi/dietpi/misc/rpi_boardinfo
- RPi Board Info -
Revision | a22082
Released | Q1 2016
Model | 3 Model B
Memory | 1024 MB
Manufacturer | Embest, China
# cat /proc/version
Linux version 4.9.27-v7+ (root@DietPi) (gcc version 4.9.2 (Raspbian 4.9.2-10) ) #2 SMP Thu May 11 18:50:36 UTC 2017
After updating everything, I installed:
- DietPi-config → Display Option → LCD Panel addon: waveshare32
- DietPi-Cloudshell (to test the LCD)
Remark: I can see the Cloudshell in the hdmi output but not in the LCD.
So, according this good help I found some difference: https://github.com/Fourdee/DietPi/issues/409
- I can’t see the fb_ili9340 and fbtft modules but yes the ads7846 the driver for touch-pressure measurement.
# lsmod
Module Size Used by
evdev 12423 0
joydev 9988 0
ads7846 13656 0
hwmon 10552 1 ads7846
brcmfmac 222798 0
brcmutil 9092 1 brcmfmac
cfg80211 542989 1 brcmfmac
rfkill 20832 2 cfg80211
snd_bcm2835 24427 0
snd_pcm 98629 1 snd_bcm2835
snd_timer 23904 1 snd_pcm
snd 70032 3 snd_timer,snd_bcm2835,snd_pcm
i2c_bcm2835 7167 0
w1_gpio 4818 0
spi_bcm2835 7596 0
wire 32619 1 w1_gpio
bcm2835_gpiomem 3940 0
cn 5889 1 wire
fixed 3285 0
uio_pdrv_genirq 3923 0
uio 10268 1 uio_pdrv_genirq
i2c_dev 6913 0
i2c_bcm2708 5994 0
fuse 99603 1
ipv6 406388 20
So I make apt-get install xserver-xorg-video-fbdev and xserver-xorg-video-fbturbo. But I still the same.
# dmesg
[ 2.317739] i2c /dev entries driver
[ 2.861045] systemd-udevd[170]: starting version 215
[ 3.160507] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[ 3.170064] Driver for 1-wire Dallas network protocol.
[ 3.175039] w1-gpio 4.onewire: gpio pin 4, external pullup pin 1, parasitic power 0
[ 3.175077] w1_add_master_device: set_pullup requires write_byte or touch_bit, disabling
[ 3.484357] EXT4-fs (mmcblk0p2): re-mounted. Opts: discard
[ 3.517804] usbcore: registered new interface driver brcmfmac
[ 3.579167] spi0.1 supply vcc not found, using dummy regulator
[ 3.589695] ads7846 spi0.1: touchscreen, irq 183
[ 3.592782] input: ADS7846 Touchscreen as /devices/platform/soc/3f204000.spi/spi_master/spi0/spi0.1/input/input0
[ 3.657542] brcmfmac: Firmware version = wl0: May 27 2016 00:13:38 version 7.45.41.26 (r640327) FWID 01-df77e4a7
[ 4.106460] systemd-journald[133]: Received request to flush runtime journal from PID 1
[ 4.515520] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 4.515549] brcmfmac: power management disabled
[ 4.578145] brcmfmac: power management disabled
[ 5.130472] brcmfmac: brcmf_cfg80211_escan: Connecting: status (3)
[ 5.130485] brcmfmac: brcmf_cfg80211_scan: scan error (-11)
[ 5.245548] Adding 55292k swap on /var/swap. Priority:-1 extents:2 across:79868k SSFS
[ 5.857595] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 5.873766] w1_master_driver w1_bus_master1: w1_search: max_slave_count 64 reached, will continue next search.
[ 24.768180] brcmfmac: power management disabled
Ok, so I control all the file should be applied and script.
# ls /boot/overlays/waveshare32b.dtbo
/boot/overlays/waveshare32b.dtbo
# cat /boot/cmdline.txt
dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=PARTUUID=ee614650-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait fbcon=map:10 fbcon=font:ProFont6x11 logo.nologo fbcon=map:10 fbcon=font:ProFont6x11
# cat /DietPi/config.txt
#Modifcations to /boot/* files, will not be saved when powered on.
#Please ensure you edit from the DietPi-RamDisk location /DietPi/*
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# Set to 1 if your display has a black border of unused pixels visible
disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
framebuffer_width=1280
framebuffer_height=720
# Rotation
display_rotate=0
lcd_rotate=0
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#-------RPi Camera Module-------
start_x=0
disable_camera_led=0
#-------GPU memory Splits-------
gpu_mem_256=64
gpu_mem_512=64
gpu_mem_1024=64
#-------Max USB Current -------
max_usb_current=1
#-------Disable Ram temp refresh every 500ms---------------
disable_pvt=1
#-------Disable Pi Splash screen on boot-------------
disable_splash=1
#-------Remove dedicated pll for PWM audio -------
avoid_pwm_pll=0
#-------SoundCard-------
#dtoverlay=none
dtparam=audio=on
#-------i2c-------------
dtparam=i2c_arm=on
dtparam=i2c1=on
i2c_arm_baudrate=100000
#-------spi-------------
dtparam=spi=on
#-------Overclock-------
temp_limit=75
initial_turbo=20
force_turbo=0
#over_voltage=0
#arm_freq=1200
#core_freq=400
#sdram_freq=450
#arm_freq_min=700
#core_freq_min=250
#sdram_freq_min=400
#Note To Self, NEVER enable L2 cache, breaks most X based applications that were not compiled with L2 cache enabled.
#Waveshare 32 LCD
dtoverlay=waveshare32b:rotate=270
dtoverlay=ads7846,cs=1,penirq=17,penirq_pull=2,speed=1000000,keep_vref_on=1,swapxy=0,pmax=255,xohms=60,xmin=200,xmax=3900,ymin=200,ymax=3900
dtoverlay=w1-gpio-pullup,gpiopin=4,extpullup=1
# ls /etc/X11/xorg.conf.d/
99-waveshare32_calibration.conf 99-waveshare32_xorg.conf 99-waveshare32_xorg.conf.backup
# ls /usr/share/X11/xorg.conf.d/
10-quirks.conf 40-libinput.conf 99-fbturbo.conf
If I check in the 99-waveshare32_xorg.conf I always have the hdmi even if I change /dev/fb1 or /dev/fb0
# cat /etc/X11/xorg.conf.d/99-waveshare32_xorg.conf
Section "Device"
Identifier "FBDEV"
Driver "fbturbo"
Option "fbdev" "/dev/fb1"
Option "SwapbuffersWait" "true"
EndSection
And If I try to install modules missing
# insmod fb_ili9340
insmod: ERROR: could not load module fb_ili9340: No such file or directory
# insmod fbtft
insmod: ERROR: could not load module fbtft: No such file or directory
Thank you very much for your help.