Collecting information on alternative displays - please contribute

[Racerboy]

Is this for real? Haha

http://www.ebay.com/itm/US-3-5-HDMI-192 ... Swo4pYdIok

[tronicgr]

Is this for real? Haha

http://www.ebay.com/itm/US-3-5-HDMI-192 ... Swo4pYdIok

Yes, i got some for my projects a few months back for $23 each from another seller on ebay!!!

[teddy.t56]

...I looked them up and they don't make a 3.5" 640x480 display...

Ah well, still worth a test though. Fingers crossed!

Finally tried it out just to see if it would work as a backup camera. No good. Screen would flicker and was dim with 12v connected. Used my multimeter to verify everything was getting voltage. Played with the mode and + - buttons, no change. If there is a section for not recommended displays I would put this in that category. I'm just going to pick up one of the ones people have had success with.

[brigghius]

I tried all the possible combinations:
To remove the integrated circuit XL1509
To connect 5V at the integrated circuit pin, with and without the integrated circuit
to connect also the gnd at the circuit pin

i don't know. pls help me

Please check this thread : viewtopic.php?f=8&t=2805

TY, but there is a problem

https://www.youtube.com/watch?v=f4vAgs4lINo

[kubino]

I tried all the possible combinations:
To remove the integrated circuit XL1509
To connect 5V at the integrated circuit pin, with and without the integrated circuit
to connect also the gnd at the circuit pin

i don't know. pls help me

Please check this thread : viewtopic.php?f=8&t=2805

TY, but there is a problem

https://www.youtube.com/watch?v=f4vAgs4lINo

hmm mine is working fine with this setup. Anyway seems like the display detected singal (blinks at startup). Do you have correctly set config.txt to video output?

[brigghius]

Please check this thread : viewtopic.php?f=8&t=2805

TY, but there is a problem

https://www.youtube.com/watch?v=f4vAgs4lINo

hmm mine is working fine with this setup. Anyway seems like the display detected singal (blinks at startup). Do you have correctly set config.txt to video output?

mh, what you mean?

[brigghius]

i use recalbox:

boot/config.txtShow

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

disable_overscan=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# comment to get jack audio
hdmi_drive=2

config_hdmi_boost=0

# force hdmi while the tv can take time before sending the signal on the hdmi output
hdmi_force_hotplug=1

# uncomment for composite PAL
#sdtv_mode=2

# uncomment for lirc-rpi
#dtoverlay=lirc-rpi

# if you plug your tv at the same time as your rpi and that the rpi switches from the hdmi or give a low resolution because tv had no enough time to initialize it
boot_delay=3

# uncomment if you don't want the rainbow at startup
disable_splash=1

# Overclock
gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=512

avoid_safe_mode=1

kernel=zImage

# NOOBS Auto-generated Settings:
hdmi_force_hotplug=1
arm_freq=1100
core_freq=550
sdram_freq=600
force_turbo=1
over_voltage=8
over_voltage_sdram=6
gpu_freq=250

recalbox.confShow

# System Variable
# You can configure your recalbox from here
# To set a variable, remove the first ; on the line



# ------------ A - System Options ----------- #
# Uncomment the system.power.switch you use
;system.power.switch=ATX_RASPI_R2_6 # http://lowpowerlab.com/atxraspi/#installation
;system.power.switch=MAUSBERRY # http://mausberry-circuits.myshopify.com/pages/setup
;system.power.switch=REMOTEPIBOARD_2003 # http://www.msldigital.com/pages/support ... board-2013
;system.power.switch=REMOTEPIBOARD_2005 # http://www.msldigital.com/pages/support ... -plus-2015
;system.power.switch=PIN56ONOFF # https://github.com/recalbox/recalbox-os ... albox-(EN)
;system.power.switch=PIN56PUSH # https://github.com/recalbox/recalbox-os ... albox-(EN)
;system.power.switch=PIN356ONOFFRESET # https://github.com/recalbox/recalbox-os ... albox-(EN)

## Recalbox Manager (http manager)
system.manager.enabled=1

## Recalbox API (REST)
system.api.enabled=0

## EmulationStation menu style
## default -> default all options menu
## none -> no menu except the game search menu
## bartop -> less menu, only needed for bartops
system.es.menu=default

## Emulator special keys
## default -> default all special keys
## nomenu -> cannot popup the emulator menu
## none -> no special keys in emulators
system.emulators.specialkeys=default

## Show or hide kodi in emulationstation (0,1)
kodi.enabled=1
## Start kodi at launch (0,1)
kodi.atstartup=0
## set x button shortcut (0,1)
kodi.xbutton=1

## Kodi can wait for a network component before starting
## waithost is the ip or hostname that must answer to a ping to validate the availability
## waittime is the maximum time waited when kodi boots
## if waitmode is required, kodi will not start if the component is not available
## if waitmode is wish, kodi will start if the component is not available
## if waitmode is not set or has another value, kodi will start immediately
;kodi.network.waitmode=required
;kodi.network.waittime=10
;kodi.network.waithost=192.168.0.50

# ------------ B - Network ------------ #
## Set system hostname
system.hostname=RECALBOX
## Activate wifi (0,1)
wifi.enabled=1
## Wifi SSID (string)
wifi.ssid=Linkem6CF25C
## Wifi KEY (string)
## Escape your special chars (# ; $) with a backslash : $ => \$
wifi.key=25280125
## Samba share
system.samba.enabled=1
### Virtual Gamepads
system.virtual-gamepads.enabled=1
### SSH
system.ssh.enabled=1

# ------------ C - Audio ------------ #
## Set the audio device (auto, hdmi, jack)
audio.device=auto
## Set system volume (0..100)
audio.volume=90
## Enable or disable system sounds in ES (0,1)
audio.bgmusic=1



# -------------- D - Controllers ----------------- #
# Enable support for standard bluetooth controllers
controllers.bluetooth.enabled=0

## Please enable only one of these
# -------------- D1 - PS3 Controllers ------------ #
##Enable PS3 controllers support
controllers.ps3.enabled=0
## Choose an driver between official (for official and gasia) or shanwan if you have dualshock clones (official,gasia)
controllers.ps3.driver=official


# ------------ D2 - XBOX Controllers ------------ #
## Xbox controllers are already supported, but xboxdrv can solve some compatibility issues
## Enable xboxdrv driver, disable this if you enabled ps3 controllers (0,1)
controllers.xboxdrv.enabled=0
## Set the amount of controllers to use with xboxdrv (0..4)
controllers.xboxdrv.nbcontrols=2


# ------------ D3 - GPIO Controllers ------------ #
## GPIO Controllers
## enable controllers on GPIO with mk_arcarde_joystick_rpi (0,1)
controllers.gpio.enabled=1
## mk_gpio arguments, map=1 for one controller, map=1,2 for 2 (map=1,map=1,2)
controllers.gpio.args=map=1,2


## DB9 Controllers
## Enable DB9 drivers for atari, megadrive, amiga controllers (0,1)
controllers.db9.enabled=0
## db9 arguments
controllers.db9.args=map=1

## Gamecon controllers
## Enable gamecon controllers, for nes, snes psx (0,1)
controllers.gamecon.enabled=0
## gamecon_args
controllers.gamecon.args=map=1

## XGaming's XArcade Tankstik and other compatible devices
controllers.xarcade.enabled=1



# ------------ F - Language and keyboard ------------ #
## Set the language of the system (fr_FR,en_US,en_GB,de_DE,pt_BR,es_ES,it_IT,eu_ES,tr_TR,zh_CN)
system.language=en_US
## set the keyboard layout (fr,en,de,us,es)
;system.kblayout=us
## Set you local time
## Select your timezone from : ls /usr/share/zoneinfo/ (string)
;system.timezone=Europe/Rome



# ------------ G - UPDATES ------------ #
## Automatically check for updates at start (0,1)
updates.enabled=1
# Update type : default to stable
# set to unstable at your own risk to get the development version.
updates.type=stable

# ------------ H - HERE IT IS - GLOBAL EMULATOR CONFIGURATION ------------ #
## The global value will be used for all emulators, except if the value
## is redefined in the emulator

## Set game resolution for emulators
## select your mode from the command : tvservice -m [MODE]
## CEA 5 HDMI : 1920x1080 @ 60Hz 16:9, clock:74MHz interlaced
## CEA 4 HDMI : 1280x720 @ 60Hz 16:9, clock:74MHz progressive
## use 'default' for using the default resolution
## (string)
global.videomode=default

## Shader set
## Automatically select shaders for all systems
## (none, retro, scanlines)
global.shaderset=none

## Once enabled, your screen will be cropped, and you will have a pixel perfect image (0,1)
global.integerscale=0

## Set gpslp shader for all emulators (prefer shadersets above). Absolute path (string)
global.shaders=

## Set ratio for all emulators (auto,4/3,16/9,16/10,custom)
global.ratio=auto

## Set smooth for all emulators (0,1)
global.smooth=1

## Set rewind for all emulators (0,1)
global.rewind=0

## Set autosave/load savestate for all emulators (0,1)
global.autosave=0

## Enable retroarchievements (0,1)
## Set your www.retroachievements.org username/password
## Escape your special chars (# ; $) with a backslash : $ => \$
global.retroachievements=0
global.retroachievements.username=
global.retroachievements.password=

## Set retroarch input driver (auto, udev, sdl2)
## If you don't have issues with your controllers, let auto
global.inputdriver=auto

## If you do not want recalboxOS to generate the configuration for all emulators (string)
;global.configfile=/path/to/my/configfile.cfg

# ------------ I - EMULATORS CHOICES ----------- #
## You can override the global configuration here
## Here is the snes example
;snes.videomode=CEA 4 HDMI
snes.core=pocketsnes
;snes.shaders=/recalbox/share/shaders/shaders_glsl/mysnesshader.gplsp
;snes.ratio=16/9
;snes.smooth=0
;snes.rewind=1
;snes.autosave=0
;snes.emulator=libretro
;snes.integerscale=0
## If you do not want recalboxOS to generate the configuration for the emulator :
;snes.configfile=/path/to/my/configfile.cfg

## Default cores for RPi1
snes.core=pocketsnes
gba.core=gpsp
mame.core=imame4all
nes.core=fceumm

## NeoGeo emulator
## You can use pifba or a libretro core (fba2x,libretro)
neogeo.emulator=fba2x
## If you set libretro as neogeo.emulator, uncomment the line below and set the retroarch core (fba,imame4all)
;neogeo.core=fba

## Configurations generated by Recalbox
n64.emulator=mupen64plus
psx.emulator=default
psx.ratio=16/9
n64.ratio=4/3

[kubino]

try to comment following lines in config.txt :

Code: Select all

hdmi_drive=2

config_hdmi_boost=0

if it won't work you can try to uncomment sdtv_mode=2 line in config.

Anyway if you have some other composite video device you can test it. I think the display is OK just no composite out configured.

[brigghius]

try to comment following lines in config.txt :

Code: Select all

hdmi_drive=2

config_hdmi_boost=0

if it won't work you can try to uncomment sdtv_mode=2 line in config.

Anyway if you have some other composite video device you can test it. I think the display is OK just no composite out configured.

Nothing!
i think there is some value to change, but i don't know which.
Other suggestions?

[kubino]

try to comment following lines in config.txt :

Code: Select all

hdmi_drive=2

config_hdmi_boost=0

if it won't work you can try to uncomment sdtv_mode=2 line in config.

Anyway if you have some other composite video device you can test it. I think the display is OK just no composite out configured.

Nothing!
i think there is some value to change, but i don't know which.
Other suggestions?

hmm no idea I'm not using recalbox. I used retropie and it worked out of the box.... the best way to test display is from wel known working source. If you have one you can test. The display won't work without signal.