Ubuntu
pm-utils package

wake up from suspend/hibernate does a full boot

Asked by werner

With Xubuntu 11.10 my VAIO notebook does a full boot when it wakes up from suspend or hibernate.

followed these tips but no change.

http://thecodecentral.com/2011/01/18/fix-ubuntu-10-10-suspendhibernate-not-working-bug
http://turbulentsky.com/resume-from-hibernate-failed-on-ubuntu.html

Machine goes to sleep correctly (at least I think so and the pm log indicates the same) but when the machine wakes up (e.g. press power button quickly or press any key on the keyboard) it starts to wake and very quickly shows the VAIO logo and the grub2 menu and does a full boot.

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actionparsnip (andrew-woodhead666) said : 		#1

Have you reported a bug, hibernate etc can be tricky to setup

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werner (wbruhin) said : 		#2

No I didn't as I don't see any error messages and I forgot to mention that it worked under 9.10 and 10.10, didn't work on 11.04 but didn't stay on that for long (hours only) before going up to 11.10.

What is the best way of reporting a bug like this?

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Sasa Paporovic (melchiaros) said : 		#3

google search on ubuntu bugreporting. The rest is reading.

(ubuntu-bug linux-generic) ; but read also!

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werner (wbruhin) said : 		#4

Looking for performance tuning tips I came across this:

https://help.ubuntu.com/community/SwapFaq

doing the following three steps:

1. gksu gedit /etc/default/grub & to pull up the boot loader configuration
2. Look for the line GRUB_CMDLINE_LINUX="" and make sure it looks like this (using your UUID of course) GRUB_CMDLINE_LINUX="resume=UUID=41e86209-3802-424b-9a9d-d7683142dab7" and save the file

3. sudo update-grub and wait for it to finish

Then reboot the machine and hibernate is working again.