ThinkpadT21

* Contact: JeremyWells

  • Make: IBM
  • Brand: Thinkpad
  • Model: T21

Version of Breezy tested: Colony 3 with all updates applied as of 8-27-05.

Current Issues

Built in ethernet controller will not work when ACPI is enabled. In latest development version, the "alt" key combinations don't work. Connot configure screensaver to turn off backlight.

Hardware details

in Hoary (current stable)?

in Breezy (current development)?

Installation works?

Yes

Yes

Hardware Information

Screen & Monitors

Device

Works?

Bug #

in Hoary (current stable)?

in Breezy (current development)?

Screen

Yes

Yes

Correct resolution?

Yes

Yes

Correct refresh rate?

Yes

Yes

3D Acceleration

Untested

Untested

External monitor works?

Untested

Untested

External monitor - mirrors

Untested

Untested

External monitor - extend desktop

Untested

Untested

Power Management

Battery detected?

Yes

Yes

Hibernates?

Yes

No*

14229

Sleep

No

No

14229

Dim monitor on battery

No

No

Blank monitor on inactivity

No**

No**

14230

Lid Close

Untested

Untested

Cpu frequency scaling

Yes

Yes

Sound

Sound works?

Yes

Yes

Correct volume?

Yes

Yes

Hardware volume switch

Yes

Yes

Headphone jack

Yes

Yes

Mic jack

Untested

Untested

Networking

Wired NIC

No***

No***

1994

Wireless NIC

Untested

Untested

PCMCIA NIC

Untested

Untested

Firewire

Untested

Untested

Bluetooth

Untested

Untested

Modem

Untested

Untested

Infrared

Untested

Untested

Touchpad & Mice

Thinkpad Pointer

Yes

Yes

Touchpad - Doubletap = double click

Yes

Yes

External mouse - USB

Yes

Yes

External mouse - scroll wheel

Yes

No****

External mouse - Serial

Yes

Untested

Docking Station/Port Replicator

AC through replicator

Untested

Untested

USB

Untested

Untested

Serial

Untested

Untested

Parallel

Untested

Untested

External Monitor - VGA

Untested

Untested

External Monitor - DVI

Untested

Untested

Modem

Untested

Untested

NIC

Untested

Untested

PS/2

Untested

Untested

Additional Hardware

CD/DVD drive

Yes

Yes

PCMCIA cards

Untested

Untested

Parallel Ports

Untested

Untested

Card reader(s)

Untested

Untested

Function and other keys

Fn key

Operation

Keycode

Works?

Bug #

in Hoary (current stable)?

in Breezy (current development)?

+ F3 (turn off screen)

Yes

No

14231

+ F4 (sleep)

No

No

14231

+ F7 (switch monitors)

Yes

No

14231

+ F12 (hibernate)

Yes

No

14231

+ 1

Untested

Untested

+ 2

Untested

Untested

Other special keys

Key

Operation

Keycode

Works?

Bug #

in Hoary (current stable)?

in Breezy (current development)?

Key

Untested

Untested

Notes

Scripts used to initiate sleep or hibernation:

/etc/acpi/sleep.sh

/etc/acpi/hibernate.sh

CPU speed applet used to confirm CPU frequency scaling occured.

* Upon initiating the hibernate script (/etc/acpi/hibernate.sh), the laptop's screen blanks, the backlight turns off, and there is about 15 seconds of hard drive activity. The laptop never turns off, however. After a forced power cycle, the laptop does a fresh boot.

** The screen blanks, but the backlight never turns off. 'Option "DPMS"' is set in xorg.conf. In Hoary, "xset dpms force off" also blanks the screen, but the backlight still remains on. For some reason, this same command does not work in Breezy, even though the xset package is loaded. "vbetools dpms off" does succeed in turning the backlight off. I believe this may be an issue with the S3 module.

*** On older Thinkpads, the ethernet driver for the built-in 3com controller fails to load when ACPI is enabled. This problem affects the following Thinkpad models: A20m, A20p, A21e, A21m, A21p, A30, A30p, A31, A31p, T20, T21, T22, X20, X21, X22, TransNote. The problem is well documented at http://www.thinkwiki.org/wiki/Problem_with_3Com_10/100_Ethernet_card_not_being_recognized -- this page also includes workarounds and a link to a patch to the 2.6.12 kernel that is reported to fix the problem.

**** The scroll wheel on an external mouse does not work in Breezy, even though it did work in Hoary.

LaptopTestingTeam/Old/Old/ThinkpadT21 (last edited 2011-03-09 21:43:37 by 94)