Lenovo ThinkPad X61 Tablet

For the past fifteen-odd years I keep selling these and then buying them again. I can't seem to get over the form factor. I started out with the X41 Tablet back in 2005, then had numerous X60/X61 Tablets, on again, off again, ad infinitum. It turns out they're just so damn relatable. They die and then I bring them back to life. You might have bought one from me in the past.

Note: Many parts are interchangeable between the X60 Tablet and X61 Tablet, including the outer shell, keyboard, LCD panel, battery, etc.

models

7762-ae1, 7763-54u, 7767-01u

works

audio, ethernet, tablet, usb, vesa, vga, wifi

audio

echo pin 18 >/dev/audioctl
echo master 75 75 >/dev/volume

Volume/mute buttons on the keyboard work out of the box.

battery

8-cell, FRU 93P5032

aux/acpi	# termrc

Since the stock batteries are essentially impossible to find in working condition, you will probably be stuck purchasing a comically oversized third-party battery. It might even work.

list of known good/bad replacement batteries

comically oversized battery

cpu

These things get really fucking hot. I used to just hold the computer on top of one of those seat cusion pillows to prevent it from burning my legs. The pillow never caught on fire, so I guess that was a totally safe procedure?

lcd

HV121P01-101 (datasheet).

list of x61t models that came with a 1400x1050 panel

The HV121P01-101 is a 1400x1050 IPS panel that contains a pine tar adhesive between the tablet surface and the actual screen. One hundred percent of these screens will eventually develop air bubbles and/or leak pine tar out of the bezel. It is technically possible to remove the adhesive:

HV121P01-101 glue removal

but this is a lot of work to potentially destroy your panel.

This unfortunate hardware shipped with the X61 Tablet and immediately created a warranty nightmare for Lenovo, so they are plentiful on the secondhand market, and are not always clearly (or honestly) labeled. Buyer beware.

hv121p01-101-bubbles-02

HPV121P01-100 (datasheet]

This is the one you actually want. It's the classic SXGA+ AFFS ("FlexView") panel that originally came with some high-end models of the X60 Tablet. Hard to find, but worth the effort.

Update: Refurb HPV121P01-100/101 panels w/ LED backlight

vga

VESA won't work for SXGA+ on this hardware. Luckily, 9front now has a VGA driver that works with Intel 945 graphics.

monitor=x60t
vgasize=1400x1050x32

tablet

Wacom WACF008

uart2=type=isa port=0x200 irq=5	# plan9.ini
aux/wacom && aux/tablet &	# riostart

| tablet button | kbmap | |———————-|————-| | Rotate | 0 108 0 | | ??? | 0 104 0 | | Esc | 0 107 0 | | Up | 0 113 0 | | Down | 0 111 0 | | Left | 0 110 0 | | Right | 0 109 0 |

There still exists an odd bug with aux/wacom. Occasionally it reports incorrect location data for the x and y axis. I've never seen the rio cursor move when this happens, but when drawing in a program like paint or oekaki, unintended lines may appear on screen. Seemingly, the drawing program has joined together the pen's actual location with a phantom location somewhere... else. This usually manifests as bizarre straight lines, or sometimes even triangles. So far, I've not been able to track down the cause, but I did create a very hacky patch that seems to prevent it from happening.