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.