Thanks for your help.
I did what you suggested. Here is the result.
** Attachment added: "dmesg1"
** Changed in: pm-utils (Ubuntu)
Status: Incomplete => New
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Computer sluggish/irresponsive for several minutes after hibernation
Status in pm-utils package in Ubuntu:
my computer is very sluggish for a good five minutes after thawing from
Booting the system and the thawing process in itself seems to run fine
: the console displays the progress of reloading contents into RAM at
a satisfying pace, then the lightdm unlock interface displays.
From this point on, things become strange : the computer has an
constant and intense hard drive activity and applications do not
respond to input in a swift manner (moving the mouse cursor works in
"real time" though, and the clock, which displays seconds, also works
This reminds me of what happens when you set focus back to an
application that had been paged to swap : it is irresponsive until it
is back in RAM. Except this happens for all applications at once.
This stops after several minutes (more than five) and the computer
becomes usable again.
I experienced the problem today again. The current RAM usage is 7.2
Gio / 15.6 Gio and swap usage is 4.2 Gio / 31.3 Gio.
Main memory usage is :
firefox 3.4 Gio
firefox (other instance) 1.7 Gio
thunderbird 624 Mio
xfwm4 213 Mio
Hibernation with TuxOnIce did not induce this problem (I am not using
it currently due to mismanagement of video drivers).
DistroRelease: Ubuntu 16.04
Package: pm-utils 1.4.1-16
ProcVersionSignature: Ubuntu 4.4.0-67.88-generic 4.4.49
Uname: Linux 4.4.0-67-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
Date: Fri Mar 24 09:20:15 2017
InstallationDate: Installed on 2016-09-07 (197 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64
UpgradeStatus: No upgrade log present (probably fresh install)
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