Touch not working on Pi 3B / Zero W

[luastoned]

Describe the bug

The I2C connection does not appear to work.

To Reproduce

What install steps did you go through so far? Did you install from GitHub or use our one-line-installer?

Installed via the one-line-installer.

Your HyperPixel 4

1. Is it Square or Rectangular? Rectangular
2. Touch or non Touch? Touch
3. Approximately when was it purchased? June 2019
4. How is it connected to your Pi? Directly

Your Raspberry Pi

1. What model of Raspberry Pi are you using (the result of cat /proc/cpuinfo | grep Revision can tell us this exactly
2. Which OS release are you using: lsb_release --description and uname -r
3. Is this a fresh OS setup, or one you might have previously installed scripts/add-ons on?

1. Revision: a02082
2. Description: Raspbian GNU/Linux 10 (buster)
3. 4.19.97-v7+

Extra debugging information

If you're having a problem with touch, try checking dmesg for related errors:

18:14:06 pi@raspberrypi:/code> dmesg | grep i2c
[    2.968454] i2c /dev entries driver
[    4.275606] gpio-10 (i2c@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[    4.275681] gpio-11 (i2c@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[    4.276348] i2c-gpio i2c@0: using lines 10 (SDA) and 11 (SCL)
[    5.279616] Goodix-TS 3-005d: i2c test failed attempt 1: -6
[    5.320321] Goodix-TS 3-005d: i2c test failed attempt 2: -6

Additional info:

18:19:52 pi@raspberrypi:/code > ls /dev/i2c-*
/dev/i2c-3

18:21:02 pi@raspberrypi:/code > i2cdetect -y 3
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

[Gadgetoid]

Thanks for the super thorough issue report!

Looks like you've had it a while, has it ever worked or did you only just find time to try it?

At face value it looks like a total comms failure with the touch driver chip. Do you have any entries in /boot/config.txt or other software installed/running that might be interfering with pins BCM10 and BCM11?

[luastoned]

I tried to use it last fall but the support for Buster was not there yet I think, so I just wrote it off for the time being.

14:45:44 pi@raspberrypi:/code> cat /boot/config.txt
# For more options and information see
# http://rpf.io/configtxt
# 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=off
#dtparam=i2s=on
#dtparam=spi=on

# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18

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

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]
#dtoverlay=vc4-fkms-v3d

dtoverlay=hyperpixel4
overscan_left=0
overscan_right=0
overscan_top=0
overscan_bottom=0
enable_dpi_lcd=1
display_default_lcd=1
display_rotate=1
dpi_group=2
dpi_mode=87
dpi_output_format=0x7f216
hdmi_timings=480 0 10 16 59 800 0 15 113 15 0 0 0 60 0 32000000 6

It's a fresh install, interestingly enough i2cdetect -y 3 now yields a different output:

14:53:09 pi@raspberrypi:/code> i2cdetect -y 3
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- 14 -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

I'm in Discord if that helps.

[luastoned]

After rebooting a couple of times:

pi@raspberrypi:/code $ dmesg | grep i2c
[    5.778133] i2c /dev entries driver
[   12.020072] gpio-10 (i2c@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[   12.020185] gpio-11 (i2c@0): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[   12.027356] i2c-gpio i2c@0: using lines 10 (SDA) and 11 (SCL)
[   23.449973] Goodix-TS 3-005d: i2c test failed attempt 1: -6
[   23.493254] Goodix-TS 3-005d: i2c test failed attempt 2: -6

pi@raspberrypi:/code $ i2cdetect -y 3
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- 5d -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

Also worth noting: i2cdetect as root will show nothing (as in the first post).