Christopher M. Penalver, thank you for your assistance.
I own this laptop for a month and I haven't installed any other Ubuntu
releases. I can download 13.10 and 13.04, boot them from USB and try to
suspend. Is this helpful?
I'll attach the info about the kernel suspend as soon as I get back
Tsvetomir Dimitrov, it would be more helpful if to rule out a regression
is to test 12.04.0 (kernel 3.2.x) via http://old-
releases.ubuntu.com/releases/12.04.0/ (live environment is fine).
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Attached dmesg with resume-trace.
My clock wasn't messed up after the resume-trace so I am afraid I've done
something wrong.
For reference, here is the magic number from the file:
[2.951140] Magic number: 6:273:495
I see no hash matches line.
** Attachment added: dmesg.txt
And also /proc/acpi/wakeup output
** Attachment added: wakeup
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1388618/+attachment/4253090/+files/wakeup
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Absolutely the same behavior with 12.04.3
uname -a
Linux ubuntu 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 16:19:23 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
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Tsvetomir Dimitrov, just to clarify, 12.04.0 (kernel 3.2.x) is not
12.04.3.
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https://bugs.launchpad.net/bugs/1388618
Title:
[Lenovo ThinkPad E440] Ubuntu 14.04 doesn't recover from
Christopher M. Penalver, sorry about that. Just tested with 12.04 - same result.
Here's the output from uname -a:
Linux ubuntu 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC
2012 x86_64 x86_64 x86_64 GNU/Linux
Is the resume-trace good? If you want me to test something else - I'm
Tsvetomir Dimitrov, the issue you are reporting is an upstream one.
Could you please report this problem to the appropriate mailing list
(linux-acpi) by following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel ?
Please provide a direct URL to your e-mail to the
** Tags added: precise
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Title:
[Lenovo ThinkPad E440] Ubuntu 14.04 doesn't recover from suspend
To manage notifications about this bug go to:
** Description changed:
After the system is suspended it doesn't recover. The screen remains black,
the lid still blinks (indicating that the laptop is suspended). The power
button also doesn't start the system.
Bios version is 2.16.
- A workaround for this problem is to disable USB3
** Description changed:
- After the system is suspended it doesn't recover. The screen remains black,
the lid still blinks (indicating that the laptop is suspended). The power
button also doesn't start the system.
- Bios version is 2.16.
- A workaround for this problem is to disable USB3
** Description changed:
After the system is suspended it doesn't recover. The screen remains
- black, the lid still blinks (indicating that the laptop is suspended).
+ black, the led still blinks (indicating that the laptop is suspended).
The power button also doesn't start the system.
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-3.18.0-031800rc3-generic
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Title:
[Lenovo ThinkPad E440] Ubuntu 14.04
Tsvetomir Dimitrov, did this problem not occur in a release prior to
Trusty?
As well, could you please provide the missing information following
https://wiki.ubuntu.com/DebuggingKernelSuspend ?
** Tags removed: kernel-bug-exists-upstream-3.18.0-031800rc3-generic
** Tags added:
I have not disabled USB3 yet to see if the problem goes away (that
leaves the problem of not having USB3 capability), but I can confirm
this bug affected my Lenovo Z580 only after updating to kernel
3.13.0-39-generic.
Hitting the power button, after waiting 30 seconds for the system to
wake from
Mike, thank you for your comment. So your hardware and problem may be tracked,
could you please file a new report with Ubuntu by executing the following in a
terminal while booted into the default Ubuntu kernel (not a mainline one) via:
ubuntu-bug linux
For more on this, please read the
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