hand-rolled kernels sometimes work, sometimes not

[Colin Law]

On 25 December 2010 17:47, Robert P. J. Day <rpjday at crashcourse.ca> wrote:
>
>  ok, things just got worse.  i went back and selected the latest
> ubuntu-supplied kernel -- 2.6.35-23-generic -- and *that* one failed
> as well.  early in the boot process, i got a *very* brief glimpse of
> something like "i915 graphics turbo disabled" or something like that,
> after which total darkness. so i'm now in the position of having what
> looks like precisely *one* working kernel, which i rolled myself and
> which works for no reason that i know of (and which is the kernel i'm
> running right now).

Do the logs tell you anything?

Colin