Kernel 5.19.0 on Ubuntu 22.04

[Liam Proven]

On Wed, 22 Mar 2023 at 16:29, Jose Luis Alarcon Sanchez
<jlalarcon at planetmail.net> wrote:
>
> I want to ask in the list what is the purpose or sense that kernel 5.19
> has been included in the LTS Jammy Jellyfish.

For each LTS release, some time after the following Ubuntu release
(that is, the normal lifetime edition), its kernel and graphics stack
are backported to the LTS edition, as an optional upgrade for existing
users, so that the LTS will install more easily on hardware released
since the LTS came out.

It used to be called the HWE stack, for Hardware Enablement.

https://wiki.ubuntu.com/Kernel/LTSEnablementStack

Canonical has been doing this for a long time -- at least a decade. I
installed the HWE stack on 12.04, I remember that. TBH I am not sure
if there were HWE updates for 6.06, 8.04 and 10.04. I don't remember
doing them. 6.06 "Dapper Drake" was the first LTS of Ubuntu.

If you already have 22.04 installed and you update, you do not have to
choose 5.19. If you have it and don't want it, you can downgrade.
There are various instructions -- for instance:

https://askubuntu.com/questions/1335453/how-can-i-disable-hwe-support-on-ubuntu-18-04

https://ubuntuhandbook.org/index.php/2017/02/install-remove-enablement-stacks-ubuntu-16-04/

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