With a 5V/5A power source provided to Tachyon via the 40-pin header, as opposed to the USB-1 power delivery, my Tachyon eventually discharges the battery and powers off. I must then swap the dead battery out and charge it separately because the Tachyon refuses to boot on the discharged battery.
I've noticed the systemd-logind was encountering a 30-min "InactivityTimeout" and suspending the Tachyon, (which has a corresponding entry to what I believe is the Power Management system:
Mar 26 16:26:53 tachyon-2d6effe4 systemd-logind[1189]: The system will suspend now!
...
Mar 26 16:27:10 tachyon-2d6effe4 kernel: PM: suspend entry (s2idle)
I've since attempted to disable the systemd-logind InactivityTimeout by adding the following entry to /etc/systemd/logind/99-disable-suspend.conf
[Login]
IdleAction=ignore
HandlePowerKey=ignore
HandleSuspendKey=ignore
HandleLidSwitch=ignore
HandleLidSwitchDocked=ignore
As of today, the Tachyon was off and battery discharged after leaving it running over the weekend, though I don't see the same "system suspending" entries in the journal logs.
{
"distro": {
"board": "formfactor_dvt",
"distribution": "ubuntu",
"distribution_version": "24.04",
"region": "NA",
"stack": "ubuntu-desktop-24.04",
"variant": "desktop",
"version": "1.1.43"
},
"src": {
"overlays": "HEAD",
"tachyon_composer": "1.1.43",
"u_boot": "1.0.30",
"ubuntu_20_04": "1.0.180",
"ubuntu_24_04": "22-938ac1d"
}
}