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When I close the lid of my laptop and open it after some time I am greeted with a message "Failed to suspend". When I tried to manually suspend/hibernate, I saw these options are not available there at all. Of course, they did exist when I did the fresh installation but I can't see them anymore.

I am totally pissed off with this. Please help.

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Are you using Wubi? Wubut doesn't fully support suspend/hibernate. – TheXed Oct 29 '10 at 16:28
No I use ubuntu as a sole operating system on my laptop. – Gaurav Butola Oct 29 '10 at 16:36
That was supposed to be Wubi, Wubut. – TheXed Oct 29 '10 at 17:19
wubut? I meant, I only use Ubuntu, so no wubi. – Gaurav Butola Oct 29 '10 at 17:32
Can you provide any more detail of what model of laptop or what hardware you have. That will help troubleshoot the problem. – cprofitt Nov 1 '10 at 14:14
up vote 3 down vote accepted

Finally I was able to resolve the problem by installing acpi-support from the ubuntu software centre. Here is the thread that helped me

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I know you've solved this, but I want to mark it as answered in the system:

Installing acpi-support can bring the suspend/resume back, sometimes issues are fixed in kernel updates and sometimes (rarely) issues are fixed in a bios upgrade.

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Had kind of same issues with my toshiba satellite. After wondering around for long time I ended up installing the new kernel 2.6.36 from here,

It seems to have resolved the issues at least when I am suspending from command line sudo pm-suspend. If I close the lid still haven't figured it out why its not working.

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