Ubuntu won't power off IBM Thinkpad T22

Bug #186056 reported by cdfalcon24 on 2008-01-25
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
linux-source-2.6.22 (Ubuntu)

Bug Description

This problem is reproducible on the IBM ThinkPad T22: http://www-307.ibm.com/pc/support/site.wss/product.do?template=/product.do?template=%2Fproductpage%2Flandingpages%2FproductPageLandingPage.vm&sitestyle=lenovo&brandind=10&familyind=50305&machineind=82753&modelind=89104&partnumberind=0&subcategoryind=0&doctypeind=100&doccategoryind=0&operatingsystemind=49979&validate=true

It was also reproducible on the ThinkPad T21, but I do not know exactly which model number.

After a clean install of Ubuntu, when I click "Shut down" or "Restart", Ubuntu shuts down the operating system and turns off the monitor, but the power light stays on. "Restart" behaves exactly like "Shut down". I have to hold down the power button for about 5 seconds to turn off the motherboard.

Interestingly, if I boot up Ubuntu recovery mode and type "reboot" at the prompt, it works perfectly. In other words, the problem only occurs in GUI mode.

This is a significant downside to using Ubuntu on ThinkPads - please fix it so that more people will be willing to use Ubuntu.

NKJensen (nkj) wrote :

Thinkpad T20 also has this problem. Using "acpi=force" as a kernel parameter does not solve the problem. apm support is not in the kernel, so I havent tried that.

NKJensen (nkj) wrote :

I've added apport data to bug #206067

hoanzlmann (heinrichkubi) wrote :

same problem..

sometimes it even crashes when booting

please fix this for 8.04

NKJensen (nkj) wrote :

I tested this on the T20 with 8.10-alpha 3, no software updates (yet).

When running the "recovery" boot option, power off works.

But with the normal boot (no options or menu selections) the last lines show:

* Will now halt
halt: Unable to iterate IDE devices: No such file or directory
[ 2750.069356] System halted.

komputes (komputes) wrote :

I am confirming this bug on 7.10 on a T21.

Changed in linux-source-2.6.22:
status: New → Confirmed
/dev/null (arndt-stedler) wrote :

The same on IBM T22 but there you can use this workaround:
just add the following line to your /etc/modules
    apm power_off=1
If you shutdown now it still does not work, but from that time on it does.
Testet with two T22's.
(btw: I added the kernelparameter "acpi=off" and "noapic")

komputes (komputes) wrote :

This seem to fix it for me on 7.10.

apm power_off=1

Sergio Zanchetta (primes2h) wrote :

The 18 month support period for Gutsy Gibbon 7.10 has reached its end of life -
http://www.ubuntu.com/news/ubuntu-7.10-eol . As a result, we are closing the
linux-source-2.6.22 kernel task. It would be helpful if you could test the
new Jaunty Jackalope 9.04 release and confirm if this issue remains -
http://www.ubuntu.com/getubuntu/releasenotes/904overview. If the issue still exists with the Jaunty
release, please update this report by changing the Status of the "linux (Ubuntu)"
task from "Incomplete" to "New". Also please be sure to run the command below
which will automatically gather and attach updated debug information to this
report. Thanks in advance.

apport-collect -p linux-image-2.6.28-11-generic 186056

Changed in linux-source-2.6.22 (Ubuntu):
status: Confirmed → Won't Fix
Changed in linux (Ubuntu):
status: New → Incomplete
Changed in linux (Ubuntu):
status: Incomplete → Confirmed

Problem confirmed on jaunty with a Lenovo Thinkpad SL500 .
Colleagues of mine with the same notebooktype report the same issues.
This problem appears often, but not always.
Solution as offered by #7 komputes is reported as well in https://bugs.launchpad.net/ubuntu/+bug/193125

cdfalcon24, thank you for reporting this and helping make Ubuntu better. This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

Changed in linux (Ubuntu):
status: Confirmed → Incomplete

Please stop sending this notification, I don't use the IBM model anymore..

> cdfalcon24, thank you for reporting this and helping make Ubuntu better

tags: added: needs-upstream-testing
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Duplicates of this bug

Other bug subscribers