Hey everyone,
I’ve been having this frustrating issue with my USB devices disappearing after a few hours. I’m running HAOS on a dedicated PC with several USB devices connected, including a SONOFF Zigbee 3.0 USB Dongle Plus V2 and a USB FTDI FT232R USB UART adapter. The problem is that these devices stop appearing in the hardware list, and the sensors become unavailable. Restarting HA doesn’t fix it, but rebooting the system temporarily does.
I’ve been digging into this and found some potential leads. It seems like the USB devices might be entering a power-saving mode. I checked the power management settings for my USB buses and found that they’re set to “auto,” which allows them to suspend. However, when I tried editing these settings, I got a “read-only file system” error.
I’ve also noticed some error messages in the dmesg logs related to the FTDI device disconnecting. Some online research suggested this could be a BIOS setting issue, but I haven’t been able to resolve it with the BIOS adjustments mentioned.
Has anyone else encountered this issue or found a workaround? I’d really appreciate any insights or suggestions!
Best,
[Your Name]