Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

It seems that I have been affected by power regression bug. I am using Ubuntu 11.10. I want to know is there any harm in downgrading to a kernel that does not have this bug. How to downgrade the Kernel? Is kernel suitable for this purpose.

share|improve this question
up vote 2 down vote accepted

why dont you try upgrading the kernel to 3.1.0 to remove the bug.

Donwloading from the Mainline the linux-image-3.1.0-030100rc10-generic. Installing it. Rebooting with it and the ubuntu 11.10 is running with the 3.1.

                             if you want to downgrade

Ubuntu Packages Search:

Picking natty-updates kernel linux-image-2.6.38-10-generic :

Downloading it and installing with the command:

sudo dpkg -i linux-image-2.6.38-10-generic_2.6.38-10.46_i386.deb


share|improve this answer
As of kernel 2.6.38 up until 3.1 (still present) there has been a problem of power regression. – Vikramjeet Nov 20 '11 at 7:57
I edited my grub. Now it looks like. GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force i915.i915_enable_rc6=1" Problem is solved – Vikramjeet Nov 20 '11 at 8:03

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.