RTC errors in system log #477

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opened 2026-02-20 13:59:58 -05:00 by deekerman · 3 comments

deekerman commented

2026-02-20 13:59:58 -05:00

Owner

Originally created by @taintedkernel on GitHub (Jun 15, 2022).

Originally assigned to: @mdevaev on GitHub.

Describe the bug
Built a new PiKVM on a RPi 4 and after bootup, I was trying to figure out why my OLED display was not working and I see repeating entries in the system log:
rtc-pcf8563 1-0051: low voltage detected, date/time is not reliable.

To Reproduce
Steps to reproduce the behavior, like:

Boot system
Run dmesg

Expected behavior
Error messages not in system log

Screenshots
n/a

Desktop (please complete the following information):

PiKVM info:

RPi 4
PiKVM v3.3 HAT
Video capture type: CSI Bridge
KVMD version: kvmd 3.61-1
uStreamer version: ustreamer 5.1-2
Linux pikvm 5.15.25-10-rpi-ARCH #1 SMP Wed Mar 16 06:04:18 MSK 2022 armv7l GNU/Linux

Originally created by @taintedkernel on GitHub (Jun 15, 2022). Originally assigned to: @mdevaev on GitHub. **Describe the bug** Built a new PiKVM on a RPi 4 and after bootup, I was trying to figure out why my OLED display was not working and I see repeating entries in the system log: ` rtc-pcf8563 1-0051: low voltage detected, date/time is not reliable. ` **To Reproduce** Steps to reproduce the behavior, like: 1. Boot system 2. Run `dmesg` **Expected behavior** Error messages not in system log **Screenshots** n/a **Desktop (please complete the following information):** - n/a **PiKVM info:** - RPi 4 - PiKVM v3.3 HAT - Video capture type: CSI Bridge - KVMD version: kvmd 3.61-1 - uStreamer version: ustreamer 5.1-2 - Linux pikvm 5.15.25-10-rpi-ARCH #1 SMP Wed Mar 16 06:04:18 MSK 2022 armv7l GNU/Linux