How to downgrade HWE?

Question

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?

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 '14 at 14:21
@Rinzwind, this is not true, i checked with glmark2 benchmark (see my question here). — Alexey, Feb 20 '17 at 15:47

score 2 · Answer 1 · answered Sep 06 '16 at 21:36

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.

answered Sep 06 '16 at 21:36

Brian Murray

171

1

Additionally, just booting an old kernel won't have you running the older Xorg packages and may cause issues with your graphics. – Brian Murray Sep 06 '16 at 21:37

score 0 · Answer 2 · answered Aug 11 '14 at 14:04

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

answered Aug 11 '14 at 14:04

pero grozny

1

How to downgrade HWE?

2 Answers2

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