# IBM ThinkPad T42

Related articles

- Wireless network configuration

This page documents configuration and troubleshooting of the IBM ThinkPad T42.

## ACPI

If not already loaded, use modprobe to load the `thinkpad_acpi` module. See the acpi and laptop articles for more information.

See http://www.thinkwiki.org/wiki/How_to_make_ACPI_work for more ThinkPad specific information.

## CPU frequency scaling

See cpufrequtils.

## Suspend and hibernate

See Suspend and hibernate.

## Wireless

The MiniPCI slot on the T42 usually comes with 1 of 6 wireless cards, 3 by IBM and 3 by Intel.

### IBM Cards

- IBM 11b/g Wireless LAN Mini PCI Adapter
- IBM 11a/b/g Wireless LAN Mini PCI Adapter
- IBM 11a/b/g Wireless LAN Mini PCI Adapter II

For the `ath5k` module, please read the following article: Wireless Setup#ath5k.

If using the `ath_pci` module, you may need to blacklist the `ath5k` module.

### Intel Cards

See the following: Wireless Setup#ipw2100 and ipw2200.

- Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter (use ipw2100)
- Intel PRO/Wireless 2200BG Mini-PCI Adapter (use ipw2200)
- Intel PRO/Wireless 2915ABG Mini-PCI Adapter (use ipw2200)

## See Also

- T42 ThinkWiki page

Category:

- IBM