Lenovo: X21
| PCI ID | Works? | Vendor | Device | Driver | Kernel |
| 80867190 | Yes | Intel Corporation | 440BX/ZX/DX - 82443BX/ZX/DX Host bridge | agpgart | |
| 80867191 | Yes | Intel Corporation | 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge | agpgart | |
| 80867110 | Yes | Intel Corporation | 82371AB/EB/MB PIIX4 ISA | ignore | |
| 80867111 | Yes | Intel Corporation | 82371AB/EB/MB PIIX4 IDE | ata_piix | v2.6.25- |
| 80867112 | Yes | Intel Corporation | 82371AB/EB/MB PIIX4 USB | usb-uhci,uhci-hcd | |
| 80867113 | Yes | Intel Corporation | 82371AB/EB/MB PIIX4 ACPI | i2c-piix4 | v2.6.25- |
| 11800476 | Yes | Ricoh Co Ltd | RL5c476 II | yenta_socket | v2.6.25- |
| 11800476 | Yes | Ricoh Co Ltd | RL5c476 II | yenta_socket | v2.6.25- |
| 10b76056 | Yes | 3Com Corporation | 3c556B CardBus [Tornado] | 3c59x | v2.6.25- |
| 10b71007 | | 3Com Corporation | Mini PCI 56k Winmodem | | |
| 10136005 | Yes | Cirrus Logic | Crystal CS4281 PCI Audio | snd-cs4281 | v2.6.25- |
| 10024c4d | Yes | ATI Technologies Inc | Rage Mobility P/M AGP 2x | atyfb | v2.6.27- |
| 14e44320 | Yes | Broadcom Corporation | BCM4306 802.11b/g Wireless LAN Controller | ssb | v2.6.25- |
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