Why does my altpcie_demo application display as "PCI Device" under "Other Devices" in the Windows Device Manager for the PCI Express Avalon-ST High-Performance Reference Design? - Why does my altpcie_demo application display as "PCI Device" under "Other Devices" in the Windows Device Manager for the PCI Express Avalon-ST High-Performance Reference Design? Description Due to a problem with the provided driver information file( .inf ), the reference design Device ID does not match that expected by the driver and Message Signal Interrupts (MSIs) are not enabled. This problem causes the kit to be displayed in the Windows® Device Manager under "Other devices" as "PCI Device" with a yellow "!" warning icon next to it. Resolution See the related solution for the workaround Related Articles Why do MSI's not work on my altpcie_demo application for the PCI Express Avalon-ST High-Performance Reference Design? Custom Fields values: ['novalue'] Troubleshooting novalue False ['Interrupt'] ['FPGA Dev Tools Quartus II Software'] novalue 12.1.1 ['Arria® II GX FPGA', 'Arria® II GZ FPGA', 'Arria® V GX FPGA', 'Cyclone® IV GX FPGA', 'Cyclone® V GT FPGA', 'Cyclone® V GX FPGA', 'Stratix® IV GT FPGA', 'Stratix® IV GX FPGA', 'Stratix® V GS FPGA', 'Stratix® V GT FPGA'] ['novalue'] ['novalue'] ['novalue']