That’s the bios version shown by fwupdmgr, for my Framework 13, 2025 edition.
None, at least none connected to the expansion cards. Perhaps those messages for coming from the connected expansion card slots. I’ve got two of the USB-C expansion slots plugged in, one of the USB-A, and the mini SD card.
Update: I narrowed down the source of the xhci_hcd 0000:c3:00.0: Refused to change power state from D0 to D3hot errors. It’s the left hand side, closest (to the user) expansion port. The one closest to the audio jack. I’ve plugged in both a USB-A adapter and my SD card adapter to that adapter port, and both start spamming the kernel log. But if I plug them into the same port on the right hand side, there are no such errors.
Update 2: The error doesn’t appear to happen if I have the USB-C expansion card plugged into that slot. I’ve simply swapped the SD Card expansion so that it’s in the back left adapter, and placed the USB-C expansion into the front left adapter. Kernel logs seem to have stopped and all the same devices are plugged in, just in a different order.
However, those errors (while annoying) might be a red herring for the crashes, as they also show up on the 6.17.6 kernel, but I’m not experiencing any crashes.