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2y ago

If a PCI device is completely non-responsive, it's possible to completely remove the device and then re-scan it, hopefully re-initializing the device so it works again.

unix.stackexchange.com Reset a PCI Device in Linux

Is there a generic way to reset a PCI device in Linux from the command line? That is, cause the PCI bus to issue a reset command.

echo 1 | sudo tee /sys/bus/pci/<pci-id-of-device>/remove and then echo 1 | sudo tee /sys/bus/pci/rescan