Bug#383725: linux-image-2.6.16-2-686: cannot halt properly Thinkpad T22

[The Anarcat <anarcat@anarcat.ath.cx>]

Package: linux-image-2.6.16-2-686
Version: 2.6.16-17
Severity: normal

Hello,

I see a clear regression here after upgrading from 2.6.15 to 2.6.16. The
kernel now doesn't shutdown cleanly the power on my laptop, a IBM
Thinkpad T22. It used to work real nice on 2.6.15, but now, the machine
just sits there after the "Shutting down drives: sda" (probably not the
exact wording, i don't clearly remember, but it's usually the last thing
on the console before the shutdown). I can safely poweroff the machine
by pressing the power key for 5 seconds, but it's a bit annoying.

Usually, i just "suspend to disk" this machine, using an ugly hack (echo
disk > /sys/power/state). This is also affect in that I need to poweroff
the same way as a shutdown, ie. by pressing the power key. The machine
resumes as normal.

Available for debugging/testing with right tools/instructions...

a.

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-2-686
Locale: LANG=fr_CA.UTF-8, LC_CTYPE=fr_CA.UTF-8 (charmap=UTF-8)

Versions of packages linux-image-2.6.16-2-686 depends on:
ii  initramfs-tools [linux-initra 0.73c      tools for generating an initramfs
ii  module-init-tools             3.2.2-3    tools for managing Linux kernel mo

Versions of packages linux-image-2.6.16-2-686 recommends:
ii  libc6-i686                    2.3.6-15   GNU C Library: Shared libraries [i

-- debconf information:
  linux-image-2.6.16-2-686/preinst/lilo-has-ramdisk:
  linux-image-2.6.16-2-686/preinst/bootloader-initrd-2.6.16-2-686: true
  linux-image-2.6.16-2-686/postinst/old-system-map-link-2.6.16-2-686: true
  linux-image-2.6.16-2-686/preinst/failed-to-move-modules-2.6.16-2-686:
  linux-image-2.6.16-2-686/preinst/overwriting-modules-2.6.16-2-686: true
  linux-image-2.6.16-2-686/postinst/old-dir-initrd-link-2.6.16-2-686: true
  linux-image-2.6.16-2-686/postinst/depmod-error-initrd-2.6.16-2-686: false
  linux-image-2.6.16-2-686/postinst/create-kimage-link-2.6.16-2-686: true
  linux-image-2.6.16-2-686/postinst/bootloader-test-error-2.6.16-2-686:
  linux-image-2.6.16-2-686/prerm/removing-running-kernel-2.6.16-2-686: true
  linux-image-2.6.16-2-686/postinst/depmod-error-2.6.16-2-686: false
  linux-image-2.6.16-2-686/preinst/abort-install-2.6.16-2-686:
  linux-image-2.6.16-2-686/postinst/bootloader-error-2.6.16-2-686:
  linux-image-2.6.16-2-686/postinst/kimage-is-a-directory:
  linux-image-2.6.16-2-686/preinst/abort-overwrite-2.6.16-2-686:
  linux-image-2.6.16-2-686/prerm/would-invalidate-boot-loader-2.6.16-2-686: true
  linux-image-2.6.16-2-686/preinst/already-running-this-2.6.16-2-686:
  linux-image-2.6.16-2-686/preinst/elilo-initrd-2.6.16-2-686: true
  linux-image-2.6.16-2-686/preinst/initrd-2.6.16-2-686:
  linux-image-2.6.16-2-686/postinst/old-initrd-link-2.6.16-2-686: true
  linux-image-2.6.16-2-686/preinst/lilo-initrd-2.6.16-2-686: true