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kvmd-oled.service not starting #551

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opened 2026-02-20 14:01:21 -05:00 by deekerman · 12 comments
deekerman commented 2026-02-20 14:01:21 -05:00
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Originally created by @nicedevil007 on GitHub (Nov 22, 2022).

Originally assigned to: @mdevaev on GitHub.

Describe the bug

I followed the guide here => https://docs.pikvm.org/v3/#basic-setup
And on step 4 I tryed to enable the OLED with the following commands:

# rw
# systemctl enable --now kvmd-oled kvmd-oled-reboot kvmd-oled-shutdown
# systemctl enable --now kvmd-fan
# ro

It shows an error message that tells me I have to take a look in journalctl.
Here is the output:

[root@pikvm ~]# journalctl -xeu kvmd-oled.service
Nov 22 10:19:08 pikvm kvmd-oled[3771]:   File "/usr/lib/python3.10/site-packages/luma/oled/device/__init__.py", line 176, in __init__
Nov 22 10:19:08 pikvm kvmd-oled[3771]:     self.command(
Nov 22 10:19:08 pikvm kvmd-oled[3771]:   File "/usr/lib/python3.10/site-packages/luma/core/device.py", line 48, in command
Nov 22 10:19:08 pikvm kvmd-oled[3771]:     self._serial_interface.command(*cmd)
Nov 22 10:19:08 pikvm kvmd-oled[3771]:   File "/usr/lib/python3.10/site-packages/luma/core/interface/serial.py", line 101, in command
Nov 22 10:19:08 pikvm kvmd-oled[3771]:     raise luma.core.error.DeviceNotFoundError(
Nov 22 10:19:08 pikvm kvmd-oled[3771]: luma.core.error.DeviceNotFoundError: I2C device not found on address: 0x3C
Nov 22 10:19:08 pikvm systemd[1]: kvmd-oled.service: Control process exited, code=exited, status=1/FAILURE
-- Subject: Unit process exited
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- An ExecStartPre= process belonging to unit kvmd-oled.service has exited.
--
-- The process' exit code is 'exited' and its exit status is 1.
Nov 22 10:19:08 pikvm systemd[1]: kvmd-oled.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- The unit kvmd-oled.service has entered the 'failed' state with result 'exit-code'.
Nov 22 10:19:08 pikvm systemd[1]: Failed to start Pi-KVM - Small OLED daemon.
-- Subject: A start job for unit kvmd-oled.service has failed
-- Defined-By: systemd
-- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- A start job for unit kvmd-oled.service has finished with a failure.
--
-- The job identifier is 2672 and the job result is failed.

Expected behavior
OLED will start.

PiKVM info:

  • Raspberry Pi board version RPi 4 - 1GB
  • PiKVM platform v3
  • Video capture type [e.g. CSI bridge]
  • KVMD version:
kvmd 3.180-1
kvmd-fan 0.22-1
kvmd-oled 0.13-1
kvmd-platform-v3-hdmi-rpi4 3.180-1
kvmd-webterm 0.42-1
  • uStreamer version: 5.31-1
  • Linux kernel: Linux pikvm 5.15.68-3-rpi-ARCH #1 SMP Mon Oct 31 20:56:54 MSK 2022 armv7l GNU/Linux

Additional context
I already tryed a complete fresh installation with newly downloaded image. I also did the Update process for all packages before testing the OLED again.

Originally created by @nicedevil007 on GitHub (Nov 22, 2022). Originally assigned to: @mdevaev on GitHub. **Describe the bug** I followed the guide here => https://docs.pikvm.org/v3/#basic-setup And on step 4 I tryed to enable the OLED with the following commands: ``` # rw # systemctl enable --now kvmd-oled kvmd-oled-reboot kvmd-oled-shutdown # systemctl enable --now kvmd-fan # ro ``` It shows an error message that tells me I have to take a look in journalctl. Here is the output: ``` [root@pikvm ~]# journalctl -xeu kvmd-oled.service Nov 22 10:19:08 pikvm kvmd-oled[3771]: File "/usr/lib/python3.10/site-packages/luma/oled/device/__init__.py", line 176, in __init__ Nov 22 10:19:08 pikvm kvmd-oled[3771]: self.command( Nov 22 10:19:08 pikvm kvmd-oled[3771]: File "/usr/lib/python3.10/site-packages/luma/core/device.py", line 48, in command Nov 22 10:19:08 pikvm kvmd-oled[3771]: self._serial_interface.command(*cmd) Nov 22 10:19:08 pikvm kvmd-oled[3771]: File "/usr/lib/python3.10/site-packages/luma/core/interface/serial.py", line 101, in command Nov 22 10:19:08 pikvm kvmd-oled[3771]: raise luma.core.error.DeviceNotFoundError( Nov 22 10:19:08 pikvm kvmd-oled[3771]: luma.core.error.DeviceNotFoundError: I2C device not found on address: 0x3C Nov 22 10:19:08 pikvm systemd[1]: kvmd-oled.service: Control process exited, code=exited, status=1/FAILURE -- Subject: Unit process exited -- Defined-By: systemd -- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- An ExecStartPre= process belonging to unit kvmd-oled.service has exited. -- -- The process' exit code is 'exited' and its exit status is 1. Nov 22 10:19:08 pikvm systemd[1]: kvmd-oled.service: Failed with result 'exit-code'. -- Subject: Unit failed -- Defined-By: systemd -- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- The unit kvmd-oled.service has entered the 'failed' state with result 'exit-code'. Nov 22 10:19:08 pikvm systemd[1]: Failed to start Pi-KVM - Small OLED daemon. -- Subject: A start job for unit kvmd-oled.service has failed -- Defined-By: systemd -- Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- A start job for unit kvmd-oled.service has finished with a failure. -- -- The job identifier is 2672 and the job result is failed. ``` **Expected behavior** OLED will start. **PiKVM info:** - Raspberry Pi board version RPi 4 - 1GB - PiKVM platform v3 - Video capture type [e.g. CSI bridge] - KVMD version: ``` kvmd 3.180-1 kvmd-fan 0.22-1 kvmd-oled 0.13-1 kvmd-platform-v3-hdmi-rpi4 3.180-1 kvmd-webterm 0.42-1 ``` - uStreamer version: 5.31-1 - Linux kernel: Linux pikvm 5.15.68-3-rpi-ARCH #1 SMP Mon Oct 31 20:56:54 MSK 2022 armv7l GNU/Linux **Additional context** I already tryed a complete fresh installation with newly downloaded image. I also did the Update process for all packages before testing the OLED again.
deekerman commented 2026-02-20 14:01:24 -05:00
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@mdevaev commented on GitHub (Nov 22, 2022):

Please show /boot/config.txt.

@mdevaev commented on GitHub (Nov 22, 2022): Please show `/boot/config.txt`.
deekerman commented 2026-02-20 14:01:24 -05:00
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@nicedevil007 commented on GitHub (Nov 22, 2022):

/boot/config.txt:

# See /boot/overlays/README for all available options
initramfs initramfs-linux.img followkernel

hdmi_force_hotplug=1
gpu_mem=128
enable_uart=1
dtoverlay=tc358743
dtoverlay=disable-bt
dtoverlay=dwc2,dr_mode=peripheral
dtparam=act_led_gpio=13

# HDMI audio capture
dtoverlay=tc358743-audio

# SPI (AUM)
dtoverlay=spi0-1cs

# I2C (display)
dtparam=i2c_arm=on

# Clock
dtoverlay=i2c-rtc,pcf8563
@nicedevil007 commented on GitHub (Nov 22, 2022): /boot/config.txt: ``` # See /boot/overlays/README for all available options initramfs initramfs-linux.img followkernel hdmi_force_hotplug=1 gpu_mem=128 enable_uart=1 dtoverlay=tc358743 dtoverlay=disable-bt dtoverlay=dwc2,dr_mode=peripheral dtparam=act_led_gpio=13 # HDMI audio capture dtoverlay=tc358743-audio # SPI (AUM) dtoverlay=spi0-1cs # I2C (display) dtparam=i2c_arm=on # Clock dtoverlay=i2c-rtc,pcf8563 ```
deekerman commented 2026-02-20 14:01:24 -05:00
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@mdevaev commented on GitHub (Nov 22, 2022):

Could you take a photo of V3 HAT with LCD?

@mdevaev commented on GitHub (Nov 22, 2022): Could you take a photo of V3 HAT with LCD?
deekerman commented 2026-02-20 14:01:24 -05:00
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@nicedevil007 commented on GitHub (Nov 22, 2022):

later :D right now I have a session on it with support. will report back

@nicedevil007 commented on GitHub (Nov 22, 2022): later :D right now I have a session on it with support. will report back
deekerman commented 2026-02-20 14:01:24 -05:00
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@mdevaev commented on GitHub (Nov 22, 2022):

Okay.

@mdevaev commented on GitHub (Nov 22, 2022): Okay.
deekerman commented 2026-02-20 14:01:24 -05:00
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@nicedevil007 commented on GitHub (Nov 22, 2022):

So here we go:

image

image

image

image

@nicedevil007 commented on GitHub (Nov 22, 2022): So here we go: ![image](https://user-images.githubusercontent.com/17103076/203273578-ec76bd08-6914-4c12-a39f-707d6b71d8f3.png) ![image](https://user-images.githubusercontent.com/17103076/203273612-954a106d-af95-4f6b-9153-06ba495db9c9.png) ![image](https://user-images.githubusercontent.com/17103076/203273646-671d79cb-cb61-4817-94c1-e1fd9ebb78ac.png) ![image](https://user-images.githubusercontent.com/17103076/203273672-85acfcc4-47f6-4724-9ed5-745d0801f76d.png)
deekerman commented 2026-02-20 14:01:24 -05:00
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@mdevaev commented on GitHub (Nov 22, 2022):

Looks fine to me. Please try to flash the new OS image: https://files.pikvm.org/images/v3-hdmi-rpi4-box-latest.img.xz

@mdevaev commented on GitHub (Nov 22, 2022): Looks fine to me. Please try to flash the new OS image: https://files.pikvm.org/images/v3-hdmi-rpi4-box-latest.img.xz
deekerman commented 2026-02-20 14:01:24 -05:00
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@nicedevil007 commented on GitHub (Nov 22, 2022):

Looks fine to me. Please try to flash the new OS image: https://files.pikvm.org/images/v3-hdmi-rpi4-box-latest.img.xz

I did this as written above (Additional Context).

@nicedevil007 commented on GitHub (Nov 22, 2022): > Looks fine to me. Please try to flash the new OS image: https://files.pikvm.org/images/v3-hdmi-rpi4-box-latest.img.xz I did this as written above (Additional Context).
deekerman commented 2026-02-20 14:01:24 -05:00
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@mdevaev commented on GitHub (Nov 22, 2022):

Sorry, I'm not thinking straight because of COVID :/ Could you please contact our discord with a link here? Write that I advised you to do this. Our support specialists will help you.

Perhaps you have a defective screen, but to make sure of this, we need our HW guy to look at it.

@mdevaev commented on GitHub (Nov 22, 2022): Sorry, I'm not thinking straight because of COVID :/ Could you please contact our discord with a link here? Write that I advised you to do this. Our support specialists will help you. Perhaps you have a defective screen, but to make sure of this, we need our HW guy to look at it.
deekerman commented 2026-02-20 14:01:25 -05:00
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@nicedevil007 commented on GitHub (Nov 22, 2022):

I have a 2nd device that I baked on kickstarter a year ago or something like this, I can take this OLED and test it on the 2nd device and if this will not work as well, I can contact discord community :) will report back tomorrow.

@nicedevil007 commented on GitHub (Nov 22, 2022): I have a 2nd device that I baked on kickstarter a year ago or something like this, I can take this OLED and test it on the 2nd device and if this will not work as well, I can contact discord community :) will report back tomorrow.
deekerman commented 2026-02-20 14:01:25 -05:00
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@mdevaev commented on GitHub (Nov 22, 2022):

👌

@mdevaev commented on GitHub (Nov 22, 2022): :ok_hand:
deekerman commented 2026-02-20 14:01:25 -05:00
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@nicedevil007 commented on GitHub (Nov 23, 2022):

Ok, tested with 2nd display, that works out of the box.
So I bought a defect display. I will contact the reseller.

@nicedevil007 commented on GitHub (Nov 23, 2022): Ok, tested with 2nd display, that works out of the box. So I bought a defect display. I will contact the reseller.
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