Incidentally, to add a kernel command line entry, append it to the “APPEND” entry in “/boot/extlinux/extlinux.conf”. It is space delimited, but one single long line.
I am only guessing, but the error report of “can't find device of ID0010”, extending infinitely, makes me think there is a working PCI device reporting that it has certain sub-devices, but the signal or incorrect software (e.g., a driver lacking an ability to work with the device; this isn’t the PCI driver, but the driver of the device itself) means the device will never be found. The ASPM might be a reason for this (if power management disabled the device then the device cannot respond), but it could be a lot of other reasons. The fact is that the PCI itself is working correctly with at least one port, and so perhaps the software lacks the knowledge that this card has more ports (it’s just one possibility, and I don’t know that this is going on, but it seems to be a reasonable guess since an electrical failure would likely affect all devices).
FYI, to see max information on lspci use sudo and “-vvv” option.
Note: Those errors are physical layer. This says it is most likely something related to the physical hardware failing to talk to the PCI card, and not software (software could be involved, but until hardware is fixed, it can’t get to that stage to know). Something as simple as signal quality being bad could do this.
Note you can specify that slot with “lspci -s 01:00.0”. You could then query just this device. It might be interesting to see the topology of that device, though I doubt it would help much since the bus lost the device: sudo lspci -s 01:00.0 -vv
If you connect this to another Linux computer, and find the slot (which is what the “-s 01:00.0” is…it is the listed identifier on the left side of plain “lspci”), does this device work on the other computer, and what does this show (adjust for the new slot, 01:00.0 is just an example from your Jetson):
From some research on this the PHY failure might be related to either overheat or undervolt (which is hardware failure, but not from bad hardware so much as inadequate power or too much power draw). An example would be if the card were pulling more power than the Jetson could produce if it is voltage dropping. Does this card have any accommodation for external power?
