1

I was running Ubuntu 12.04 LTS and was accepting all suggested upgrades. About a week ago I was prompted to upgrade the Hardware Enablement Stack because it was going out of support. So I did and I upgraded to 12.04.5. Unfortunately this upgrade brought multiple problems to my computer: if I send computer to sleep it does not recover, and if I shut it down, it restarts automatically for now apparent reason.

Now I want to undo the upgrade that I made last week. Is there a simple way to do that?

3
  • HWE is nothing but a new kernel. When you pick an older kernel during boot (see the options GRUB shows you) you are using the older HWE stack.
    – Rinzwind
    Aug 11, 2014 at 14:21
  • 1
    @Rinzwind, this is not true, i checked with glmark2 benchmark (see my question here).
    – Alexey
    Feb 20, 2017 at 15:47
  • At least, it is no longer true with 16.04.2.
    – Alexey
    Feb 20, 2017 at 15:54

2 Answers 2

2

The correct way to downgrade is to remove the unsupported packages this can be done with the following command sudo apt-get remove $(hwe-support-status --show-all-unsupported) which feeds the unsupported packages to apt for removal.

1
  • 1
    Additionally, just booting an old kernel won't have you running the older Xorg packages and may cause issues with your graphics. Sep 6, 2016 at 21:37
0

same here... what I did to revert is described here:

sudo apt-get install --install-recommends linux-generic-lts-saucy xserver-xorg-lts-saucy libgl1-mesa-glx-lts-saucy

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .