IBV

Hi, how do you mount the share? It might be that systemd manages the mount in newer systems, then, to umount you have to simply systemctl stop your-share.mount You can check with: systemctl list-units --type=mount --all To see if the mount is systemd managed

Hi, I suggest you try with a different powered hub see if there's a difference. However, please provide logs with armbianmonitor -u

Hi, can you confirm that the OLED is working connecting it to another device (raspberry, Arduino)? It should be properly powered, cables should be checked if ok. Also, check in the spec if pull-up resistors are needed. You can force a scan of all i2c addresses again like this: # Force scan all addresses for i in {0..127}; do sudo i2cget -y 1 $i 2>/dev/null && echo "Device found at: 0x$(printf '%02x' $i)" done

Was the auditd disabled ? Without it is difficult to see where the sysrq comes from. Re. monitoring ttyS1: you could try use screen: sudo screen /dev/ttyS1 9600 Replace 9500 if needed with the baud rate configured in the UPS

Hi, I guess this happens because of the "-x" option in rsync which tells rsync to not cross the filesystem hierarchy. /var/log is typically a mount (/dev/zram1) so it will not be synced.

I suggest to confirm first that it works with the vendor image, just in case. If you boot the vendor image you could also gather some info, like aplay -L, etc.

Do you get sound (HDMI) through your monitor speakers with the official vendor image?

aplay -D plughw:0,0 -f S16_LE -r 48000 -c 2 your_audio_file.wav ? this will force a more common audio format (in case the monitor supports specific audio formats. If not working, no idea, hw detection looks ok.

Sorry I mean Which kind of output device: TV, Monitor with build in speakers? If you try "aplay -D plughw:0,0 your_audio_file.wav", still no sound?

What does "aplay -L" show ? How do you test the HDMI sound ?

Hi, always check with "amixer" (alsa mixer) if your outputs are not muted.

Hi, you can try to set up a readonly root filesystem: https://wiki.debian.org/ReadonlyRoot Cheers

Good news!

Hi, if it is similar to the tinkerboard, you should enable the overlay using "overlays=uart1", and the /dev/ttyS1 should be the serial port. What does "dmesg | grep ttyS" say?

After this test, you might try a boot just with forcing the mode, without edid: extraargs=video=HDMI-A-1:1920x1080@60 drm.debug=0x4