@Julius Thor: Unfortunately I couldn't reproduce your workaround. Once I
undock my laptop in the closed state it does not resume anymore.
Currently I am running
Linux thinkpad 4.4.0-77-generic #98-Ubuntu SMP Wed Apr 26 08:34:02 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
The only "solution" seems to
This bug is still in 16.04.
I seem to be able to work around this issue by closing the display while
in the bug. Let the display orientation update so only the external
monitor(s) is turned on, then undock the computer and finally open the
display and close it again.
But undocking the computer wi
...by closing the display while in the dock", not the "bug" :)
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Title:
Ubuntu 16.04: system freezes instead of suspend after undocking
To manage
brandon211, I am closing it because as per your comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1604313/comments/35
the bug has been fixed in a later version of the package.
This is a significant bug in Ubuntu. If a fix for the bug in previous
versions of Ubuntu is required, please pe
@brandon211: good to know that there is a workaround, however I think it
is not really a solution because the kernel you are currently running is
not the default one. I am also running Ubuntu 16.04.2 but with the
standard kernel 4.4.0-64-generic where this bug is still present.
Furthermore installi
As the person who originally filed this bug, I'd like to add a comment: The bug
actually doesn't affect me anymore to the effect that when Ubuntu 16.04.2 came
out I switched to the new hwe-stack. This means I am (by) now running kernel
4.8.0-39-generic which does fine so far.
Anyway, it would be
I am willing to help but the above comments are a little bit confused. So did I
understood it correctly that wee need to reverse bisect
(https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F)
from kernel version
4.4.0-28-generic to 4.7-rc7 ?
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I also notice that the display changes are not detected properly. When I
undock, there is no change in display orientation and I can still move
the mouse over to the other screen which is not there (missing limb,
still felt). When I run Displays ("unity-control-center display"), the
screen flickers
This is a ubuntu repository kernel, isn't it? Or should I move back to
4.4?
$ sudo apt-cache policy linux-image-4.8.0-30-generic
linux-image-4.8.0-30-generic:
Installed: 4.8.0-30.32~16.04.1
Candidate: 4.8.0-30.32~16.04.1
Version table:
*** 4.8.0-30.32~16.04.1 500
500 http://is.arch
Julius Thor, it will help immensely if you filed a new report with the Ubuntu
repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux
Please feel free to subscribe me to it.
For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.
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I have the same laptop and am experiencing the same bug. I have tried
upgrading to 4.8.0-30-generic but that does not fix the problem for me.
I did try and turn off all monitors except the laptop monitor before
undocking and that allowed me to put the laptop to sleep. I could not
wake it up, though
Given the fix commit came after 4.4.0-28-generic, and either including
or before 4.7-rc7, this would be a more appropriate range.
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Ubuntu
It is clear to me what is the general goal, but as I showed I don't
understand why a (reverse) bisecting between 4.7-rc7 and 4.8.1 is needed
because the problem is not present in both versions.
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brandon211, apologies for letting this get away from me. To clarify, one
would want to bisect from a kernel where this issue is confirmed to a
kernel where this issue is not reproducible in.
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I'd like to renew my question. Did I miss anything? What am I supposed
to do now?
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Title:
Ubuntu 16.04: system freezes instead of suspend after u
I'm confused now. The problem is not present in 4.7-rc7 as well as in
4.8.1, so what is the bisecting supposed to find?
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Title:
Ubuntu 16.04: sys
brandon211, the next step is to fully reverse commit bisect from kernel
4.7-rc7 to 4.8.1 in order to identify the last bad commit, followed
immediately by the first good one. Once this good commit has been
identified, it may be reviewed for backporting. Could you please do this
following
https://wi
With the latest mainline kernel, 4.8.1, the problem is not present.
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Title:
Ubuntu 16.04: system freezes instead of suspend after undocking
To m
brandon211, to keep this relevant to upstream, one would want check for,
and test the latest mainline kernel (now 4.8-rc6) as it is released.
Could you please advise?
** Tags added: bisect-done regression-update
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Author: Maarten Lankhorst
Date: Mon May 9 18:16:48 2016 -0600
drm/atomic: Remove drm_atomic_connectors_for_crtc.
BugLink: http://bugs.launchpad.net/bugs/1542939
Now that connector_mask is reliable there's no need for this
function any more.
Signed-off-by: Maar
brandon211, could you please advise to the full details of that commit
number for this report (author, signed off by, etc.)?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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386e0f97a585fa6a6d4aad767884a760ce3c0782 is the first bad commit
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
U
I will have a look. Basically, I am maybe an experienced user who just
(tries to) use Linux for his daily work. Hopefully I will have the free
time to tinker with the instructions during the next week.
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brandon211, the next step is to fully commit bisect from kernel 4.4.0-22
to 4.4.0-28 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https:/
I have created
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1614513 for this.
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Title:
Ubuntu 16.04: system freezes instead of suspend aft
I'd recommend that. You should then reference the bugs to each other so
that they can be traced.
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Title:
Ubuntu 16.04: system freezes instead of
Should I raise a new bug?
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Title:
Ubuntu 16.04: system freezes instead of suspend after undocking
To manage notifications about this bug go to:
#12: But this means that you are affected by a freeze which comes from the
docking / undocking event.
This is somewhat different to my case, where a freeze comes from the "go to
suspend" event.
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I am getting this problem on a Thinkpad x260. I have two displayport
monitors attached to the docking station. If the machine is booted
docked, undocking causes a freeze. if the machine is booted undocked,
docking causes a freeze.
Kernel is 4.4.8-040408-generic
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And, to be up do tate:
4.4.0-34-generic: problem exists
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Title:
Ubuntu 16.04: system freezes instead of suspend after undocking
To manage notif
Oh, I forgot to install the linux-image-extra-... packages. So here we go:
4.4.0-21-generic: no problem
4.4.0-22-generic: no problem
4.4.0-28-generic: problem exists
4.4.0-31-generic: problem exists
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Regarding the "bios-outdated" tag: I did a BIOS update, it now is
BIOS Information
Vendor: LENOVO
Version: JBET60WW (1.24 )
Release Date: 05/25/2016
but the problem persists.
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I can try that. If you could point out how I can install previous
kernels? Just installing various linux-image-4.4.0. didn't to the
trick as there seem to be drivers missing (sound, graphic accel., etc.).
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brandon211, could you please advise which various kernels specifically
where this issue was not present?
** Tags added: bios-outdated-1.25
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This issue did not start after an upgrade. The system however was
upgraded from Ubuntu 15.10. Yes, there were various kernels where this
issue was not present.
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I tested the kernel you suggest. It fixes this bug *somehow*, which
means that suspend now works but when docking/undocking, the screen
configuruation with the monitor connected to the docking station is not
updated automatically anymore. Moreover, I have to dock/undock several
times until my scree
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.7 kernel[0
There are already bug reports stating general suspend problems (without
involvement of a docking station),
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1589139 and
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1566302/, both
containing comments of people still affected.
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