problem in HIbernating UBUNTU 11.04 and Kubuntu11.04

Asked by !ncredible

i have installed ubuntu 11.04 on my system. when i hibernate the system, it doesnot save its state. means, whenever i turn on the system again, it always loads the OS from start rather than its previous saved state.

there are many other problems i am facing after hibernating
1. volume automatically turns to mute .
2. screen brightness increase automatically, after turning on the system after hibernation.
3. previously saved playlists in Banshee dont work, i have to again import the same playlists in the player which are already there
4. most important, that i cant rely on hibernation, cause whenever i hibernate the system without saving my files(keeping them open) they are always closed after i turn on the system again....and my files are lost.

these problems are same in the ubuntu as well as Kubuntu.

plz help

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Sam_ (and-sam) said :
#1

3+4 sound as it doesn't hibernate at all. Verify there is enough RAM to save the image.
Do a websearch with ubuntu+computer name+hibernate, maybe someone has the same issue or there is already a bug reported.
Review log files, dmesg, kern.log.
Hibernation and suspend issues aren't trivial to debug. Could be anything from BIOS (needs update) to wireless (not unloading). In case unplug usb devices.
https://wiki.ubuntu.com/DebuggingKernelSuspendHibernateResume
http://lxr.linux.no/#linux+v2.6.38/Documentation/power/basic-pm-debugging.txt

Test if hibernate and suspend are supported with this one-liner.
echo; for i in --suspend --hibernate --suspend-hybrid; do pm-is-supported $i && echo "$(echo $i | tr [:lower:] [:upper:] | tr -d -) is supported"; done; echo

Maybe install and test 'hibernate'.
http://packages.ubuntu.com/natty/hibernate
http://manpages.ubuntu.com/manpages/natty/en/man8/hibernate.8.html

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