Red Hat Bugzilla – Bug 124337
Thinkpad T40 doesn't suspend (ACPI/s3) with the test kernel-2.6.6-1.383.i686
Last modified: 2015-01-04 17:06:18 EST
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Description of problem:
The T40 doesn't go into suspend state (s3) in "echo 3 >
/proc/acpi/sleep" command is invoked
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. boot to kernel-2.6.6-1.383.i686
2. as root invoke:
echo 3 > /proc/acpi/sleep
Actual Results: The laptom doesn't enter suspend state - it just
comes back to a normal screen/operation
Expected Results: The laptop should suspend
This works with the release kernel-2.6.5-1.358
Created attachment 100553 [details]
Created attachment 100554 [details]
lspci -vv output
can you try to do
and see if you can then suspend ?
I tried rmmod ehci_hcd - and then it could suspend.
Interestingly after the first suspend - the following worked:
- " modprobe ehci_hcd ; echo 3 > /proc/acpi/sleep"
I've also tried kernel-2.6.6-1.397 - the same behavior - except for
the last part. I had to remove ehci_hcd for subsequent suspend as well.
Just duplicated this on IBM R50p running FC2 with latest errata kernel
2.6.6-1.435. Logged into X as myself, xterm as root. "echo 3 >
/proc/acpi/sleep" failed to suspend.
I tried "rmmod ehci_hcd" and "echo 3 > /proc/acpi/sleep". It
suspended, but when I hit the power button, it came back to a Fedora
Created attachment 101218 [details]
lspci -vv from IBM R50p
mass update for old bugs:
Is this still a problem with the 2.6.9 based update kernel ?
ACPI suspend/resume works fine with 'FC3/kernel-2.6.9-1.681_FC3' (without
'modprobe -r ehci_hcd') on the T40
(however I mostly use APM instead of ACPI)
This issue can be considered resolved