On Fri, Feb 26, 2021 at 7:04 AM o1bigtenor <o1bigtenor at gmail.com> wrote:
> Greetings
> The last kernel where I had almost no issues with my monitors not
> being willing to un-sleep was 5.4.0-4 (Debian testing). I, foolishly,
> used autoremove  which removed all kernels older than 5.10.1 or some
> such. The newer kernels are really not helping matters.
> Some I come to the nub of the problem - - - - - Debian repositories do
> not seem to have anything like a 5.4.xx kernel available anymore. The
> kernel.org website lists, today anyway, 5.4.100 as not only current
> but that the 5.4.xx kernel is a LTS version with support to Dec 2025
> (that's definitely a ways out there and only some 3 years past the EOL
> of 5.10.x).
> Searching for a procedure what I'm finding is most on installing a
> newer kernel, say from unstable or even experimental, then there are a
> very small number of how tos which are just about downloading
> something that is still in the repositories. Last, and in smallest
> numbers, are those that suggest compiling this kernel is the 'what to
> do'.
> This kernel downgrading and/or kernel compiling is something I really
> haven't even wanted to do and not finding any reasonably current (less
> than 3 years old) information has me concerned.
> Does anyone have a cheat sheet for this kernel compiling (and
> installing) or is there something else that can be done?
> Please advise.

I have been able to find at:

copies of all of linux  - headers, -image and -modules.

Might this be a possible solution short of compiling a kernel?