With a similar hardware Lenovo Ideapad U430 Intel 4400 graphics. A
reinstall on the M2 SSD drive using Sabayon (Gentoo) 4.05 kernel and KDE
4.14.9 the same issue appeared.
Normally after running any native KDE application particularly Dolphin
the Plasma desktop freezes soon after closing a
Current contents of my /etc/pm/config.d/modules
SLEEP_MODULE=uswsusp
S2RAM_OPTS=-f -a 2
Now sleeping with Fn + Zz keys and waking with short press of power
button seems reliable. Sleep from lid close or waking from any other
key will/can fail.
Some attention to /var/log/pm-suspend.log may
The final addition to /etc/pm/config.d/modules
adds:
SLEEP_MODULE=uswsusp
S2RAM_OPTS=-f -a 2
SUSPEND_MODULES=button uhci_hcd
I'm thinking having the most recent kernel you can find could help as
the -a parameter makes use of kernel features.
I'm using 3.6.1
as in
The above seemed to work fine until I rebooted. Strange?? so back to
some research on what the real fix is.
pm-utils seems to be the mechanism behind suspend/resume from both disk
and ram. This is fine tuned for different laptop chipsets and kernel
modules for video/wireless etc by s2ram . A
Correction to the above
The contents of modules file should be: S2RAM_OPTS=-f -a 2
Try as root (su) in a terminal
s2ram -f -a 2
This is the one which worked for me. You may have to search for s2ram
and install it if it is not part of your distribution.
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Having followed the link in post 64 I decided to give re-building my
current kernel a go.
This should apply to Ubuntu as much as the Mandriva 2011 install I'm
using.
Without changing anything in the .config for the re-build resulted in a
kernel which does suspend/resume again and again. No
