4 inch RPi LCD displaying MM not working

aecandroid

@lavolp3 Below is my /boot/config.txt I used the drivers for LCD-show from the waveshare link above.I’ve done a fresh install on a new SD got everything up an running on Magic Mirror using HDMI as normal on the Raspberry PI Zero W. Then I do the LCD-show install and ./LCD4-show command. The device reboots and the LCD goes from white backlight to showing the boot cmd line. From there, it almost appears to get stuck. instead of seeing the pi@raspberry: the last line displayed is [ ok ] Started OpenBSD Secure Shell Server.

Thanks again for your help. Let me know if you need to see any other code.

# For more options and information see
# http://www.raspberrypi.org/documentation/configuration/config-txt.md
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#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
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# 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

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
dtparam=spi=on
enable_uart=1
# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on
dtoverlay=waveshare35a
#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
hdmi_force_hotplug=1
#max_usb_current=1
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 480 320 60 6 0 0 0
hdmi_drive=2
display_rotate=0

aecandroid

@aecandroid @lavolp3 So Just as an update, I tried to run ./LCD-hdmi and then sudo reboot. Plugged into the HDMI, the Pi reboots, LCD in the GPIO goes white, Pi boots to pi@raspberry: and does not start MM. The only change is the install of LCD-show; change driver to LCD4-show; back to LCD-hdmi; and MagicMirror no longer works? I even tried doing npm start in /MagicMirror and got nothing. I also tried sh mm.sh and got nothing. I don’t get what happens in the LCD-show install but it kills MagicMirror. I have a backup image of when its working on HDMI, so that’s my reset point at the moment. Not sure what to do, may just need to go for an HDMI display in the end. Anyway, thanks again for your help and suggestions.

aecandroid

Having been in quarantine, I’ve had a chance to sit down and try to sus out the issue. Everything seems to work 100% fine right up until I install LCD-show. After installing LCD-show and doing a reboot, MM never auto starts. I tried to run ./mmstart.sh and the results are below.


Linux raspberrypi 4.19.58+ #1245 Fri Jul 12 17:20:08 BST 2019 armv6l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Apr 11 19:25:01 2020

SSH is enabled and the default password for the 'pi' user has not been changed.
This is a security risk - please login as the 'pi' user and type 'passwd' to set a new password.

pi@raspberrypi:~ $ ls
chromium_start.sh  mmstart.sh                         package-lock.json
LCD-show           node-v10.16.0-linux-armv6l
MagicMirror        node-v10.16.0-linux-armv6l.tar.xz
pi@raspberrypi:~ $ ./mmstart.sh
Starting MagicMirror: v2.8.0
Loading config ...
Loading module helpers ...
No helper found for module: alert.
No helper found for module: clock.
Initializing new module helper ...
Module helper loaded: calendar
No helper found for module: MMM-TFL.
No helper found for module: currentweather.
No helper found for module: weatherforecast.
Initializing new module helper ...
Module helper loaded: MMM-UKNationalRail
All module helpers loaded.
Starting server on port 8080 ... 
Server started ...
Connecting socket for: calendar
Starting node helper for: calendar
Connecting socket for: MMM-UKNationalRail
MMM-UKNationalRail helper started ...
Sockets connected & modules started ...

Ready to go! Please point your browser to: http://localhost:8080
Whoops! There was an uncaught exception...
{ Error: listen EADDRINUSE: address already in use 127.0.0.1:8080
    at Server.setupListenHandle [as _listen2] (net.js:1279:14)
    at listenInCluster (net.js:1327:12)
    at GetAddrInfoReqWrap.doListen [as callback] (net.js:1460:7)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:61:10)
  code: 'EADDRINUSE',
  errno: 'EADDRINUSE',
  syscall: 'listen',
  address: '127.0.0.1',
  port: 8080 }
MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues


X.Org X Server 1.20.4
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.15.0-48-generic armv8l Raspbian
Current Operating System: Linux raspberrypi 4.19.58+ #1245 Fri Jul 12 17:20:08 BST 2019 armv6l
Kernel command line: coherent_pool=1M 8250.nr_uarts=1 bcm2708_fb.fbwidth=480 bcm2708_fb.fbheight=320 bcm2708_fb.fbswap=1 smsc95xx.macaddr=B8:27:EB:B2:0B:D5 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait fbcon=map:10 fbcon=font:ProFont6x11 logo.nologo
Build Date: 05 June 2019  12:49:54PM
xorg-server 2:1.20.4-1+rpt1 (https://www.debian.org/support) 
Current version of pixman: 0.36.0
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Apr 11 19:27:57 2020
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE) 
Fatal server error:
(EE) no screens found(EE) 
(EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error
pi@raspberrypi:~ $

I’ve attached copy of the Xorg.0.log. It appears the main issue is there is no screen selection or default monitor. Any help is greatly appreciated.

  GNU nano 3.2                     Xorg.0.log                                
[  1272.263]
X.Org X Server 1.20.4
X Protocol Version 11, Revision 0
[  1272.264] Build Operating System: Linux 4.15.0-48-generic armv8l Raspbian
[  1272.264] Current Operating System: Linux raspberrypi 4.19.58+ #1245 Fri $[  1272.264] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 bcm2708_f$[  1272.265] Build Date: 05 June 2019  12:49:54PM
[  1272.265] xorg-server 2:1.20.4-1+rpt1 (https://www.debian.org/support)
[  1272.265] Current version of pixman: 0.36.0
[  1272.265]    Before reporting problems, check http://wiki.x.org
��������to make sure that you have the latest version.
[  1272.265] Markers: (--) probed, (**) from config file, (==) default setti$��������(++) from command line, (!!) notice, (II) informational,
��������(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[  1272.267] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Apr 11 19:45:42$[  1272.269] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[  1272.279] (==) No Layout section.  Using the first Screen section.
[  1272.283] (==) No screen section available. Using defaults.
[  1272.284] (**) |-->Screen "Default Screen Section" (0)
[  1272.284] (**) |   |-->Monitor "<default monitor>"
[  1272.288] (==) No device specified for screen "Default Screen Section".
��������Using the first device section listed.
[  1272.288] (**) |   |-->Device "Allwinner A10/A13 FBDEV"
[  1272.288] (==) No monitor specified for screen "Default Screen Section".
��������Using a default monitor configuration.
[  1272.289] (==) Automatically adding devices
[  1272.289] (==) Automatically enabling devices
[  1272.289] (==) Automatically adding GPU devices
[  1272.289] (==) Max clients allowed: 256, resource mask: 0x1fffff
[  1272.290] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exi$[  1272.290]    Entry deleted from font path.
[  1272.290] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exis$[  1272.290]    Entry deleted from font path.
[  1272.290] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.[  1272.291]    Entry deleted from font path.
[  1272.291] (WW) The directory "/usr/share/fonts/X11/Type1" does not exist.
������������������������������[ Read 76 lines ]
^G Get Help    ^O Write Out   ^W Where Is    ^K Cut Text    ^J Justify
^X Exit��������^R Read File   ^\ Replace     ^U Uncut Text  ^T To Spell

sdetweil

@aecandroid the lcd is probably not DISPLAY :0… which mm.sh sets.

Boot, open terminal window and dump the env looking for display

aecandroid

@sdetweil thank you for your help.

I’ve checked my mm.sh file and it reads as follows. Not sure where to go from here?


cd ~/MagicMirror
node serveronly &
sleep 30
xinit /home/pi/chromium_start.sh

aecandroid

@sdetweil thank you for your help.

I’ve checked my mm.sh file and it reads as follows. Not sure where to go from here?


cd ~/MagicMirror
node serveronly &
sleep 30
xinit /home/pi/chromium_start.sh

sdetweil

@aecandroid look at that /home/pi/chromium_start.sh

aecandroid

@sdetweil I did, sorry, should’ve mentioned.

This is the code:


/bin/sh
unclutter &
xset -dpms # disable DPMS (Energy Star) features.
xset s off # disable screen saver
xset s noblank # don’t blank the video device
matchbox-window-manager &
#midori -e Fullscreen -a http://localhost:8080
chromium-browser --incognito --kiosk http://localhost:8080/

sdetweil

@aecandroid what version are you running? none of that is current…

use my installer script, it handles piw -4, odroid, jetson nano, any unix variant.

see the readme here

https://github.com/sdetweil/MagicMirror_scripts

it will setup to launch chrome against serveronly exactly as it appears you have done…

oh, you need raspian buster… jessie and stretch are too old now

aecandroid

@sdetweil Thanks for the help. I tried to start over from fresh. I’ve installed buster lite and completed a fresh install of MM and followed the bash -c "$(curl -sL… commands listed. I still am not having any luck getting MagicMirror working on the 4 inch display. Everything is fine right up until I do the Waveshare driver install and then do ./LCD4-show. Once I do that, I can see the device reboot, the HDMI no longer works and on the small LCD, I see the command prompt boot to pi@raspberrypi:~ $. From this point, I can no longer get MagicMirror to run, even if I try to run ./LCD-hdmi, MM does not start working again with HDMI. Something with the install of the Waveshare drivers is killing MM. I am genuinely at a loss.