Suspend & Hibernate hang on Thinkpad T43

Bug #155037 reported by bonkydog on 2007-10-20
Affects Status Importance Assigned to Milestone
linux-source-2.6.22 (Ubuntu)

Bug Description

I am using a Thinkpad T43 (Type 2687-D4U).

When I invoke suspend or hibernate using the red power icon or Fn-F4, the screen blanks and the little moon led starts flashing as it normally does, but it never stops and the fan keeps running.

Machine can only be revived by holding down the power button to do a hard reboot.

I have recently upgraded from Feisty to Gutsy.

My kernel version is 2.6.22-14-386.

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it, because your description does not yet have enough information.

Please include the following additional information, if you have not already done so (pay attention to lspci's additional options), as required by the Ubuntu Kernel Team:
1. Please include the output of the command "uname -a" in your next response. It should be one, long line of text which includes the exact kernel version you're running, as well as the CPU architecture.
2. Please run the command "dmesg > dmesg.log" after a fresh boot and attach the resulting file "dmesg.log" to this bug report.
3. Please run the command "sudo lspci -vvnn > lspci-vvnn.log" and attach the resulting file "lspci-vvnn.log" to this bug report.
4. Please follow

For your reference, the full description of procedures for kernel-related bug reports is available at [WWW] Thanks in advance!


please let me jump in here as I have the same problem:

uname: Linux braini.brainilan.local #1 Tue Oct 23 22:35:49 CEST 2007 i686 GNU/Linux

dmesg and lspci logs are attached.
Was not yet able to successfully follow DebuggingKernelSuspend. I see this in the log:

[ 17.728990] Magic number: 11:87:602
[ 17.729088] hash matches device ptyd6

but there is no such module.
Will let you know once I have more information.


bonkydog (bonkydog) wrote :

Hello, Jérôme. Thanks for your patience with my n00b bug report.

Here is my uname -a output.

bonkydog (bonkydog) wrote :
bonkydog (bonkydog) wrote :
bonkydog (bonkydog) wrote :

here is my dmesg after a failed suspend caused by issuing this command:

sync; echo 1 > /sys/power/pm_trace; /etc/acpi/ force

bonkydog (bonkydog) wrote :

I am interested in the solution to this problem.

I have a Thinkpad T43-2668 running gutsy gibbon

$ uname -a
Linux t43 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux

When I suspend, and when I do this:

sync; echo 1 > /sys/power/pm_trace; /etc/acpi/ force

the "crescent moon" LED begins to flash immediately.

Using feisty fawn (and other operating systems) when entering the suspend state, this is the LED that flashes for a few seconds, then remains lit while the machine is suspended.

I have attached the the dmesg log from the DebuggingKernelSuspend procedure to this report, and will attach the remaining files you request in following messages.

Thanks for your attention to this.

Here is dmesg log for a fresh boot

Here is the result of lspci -vvnn > lspci-vvnn.log

Thank you, I'm marking this as triaged.

Changed in linux-source-2.6.22:
assignee: nobody → ubuntu-kernel-acpi
status: Incomplete → Triaged
pauls (paulatgm) wrote :

This seems to be the same as confirmed bug 121653. I won't mark it a duplicate, but suggest you take a look and if you agree, you can.

Unfortunately, there is no fix except to wait for AMD/ATI.

bonkydog (bonkydog) wrote :

Disabling the "ATI accelerated graphics driver" in the Restricted Drivers application seems to have fixed the problem. Yay, restricted drivers.

Marking as duplicate of bug 121653.

Curtis Hovey (sinzui) on 2012-04-09
Changed in linux-source-2.6.22 (Ubuntu):
assignee: Registry Administrators (registry) → nobody
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