3.5inch lcd touchscreen issues

mitu

Have you tried disabling the HDMI output or disconnecting the HDMI display ?

ryan spicer

@mitu is there a way to force it instead of switching to hdmi in config

ryan spicer

@mitu yep, doesnt change a thing, nor leaving hdmi off for whole process, loads fine then black screen

mitu

Try adding to your config.txt:

enable_dpi_lcd=1
display_default_lcd=1

If that doesn't work, then please post the config.txt file.

ryan spicer

@mitu I'll try that, cheers for your help.

ryan spicer

@ryan-spicer I loaded this and it worked finally, appreciate your help
https://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A)

mitu

Glad you got it working.
For future reference (just in case someone has the same problem), can you post your config.txt file ?

ryan spicer

@mitu not working properly :( will load config soon

ryan spicer

@ryan-spicer seems to work but doesnt load all the title screen headers etc properly, in saying that it does play the games I've tried, not perfect but close :)

# 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=1,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 640 480 60 6 0 0 0
hdmi_drive=2

ryan spicer

@ryan-spicer changed the theme to a more basic theme - carbon, and its working great, stoked