[euank]

> Does anyone know if and where I could file a bug report?

The linux kernel does take bug reports: https://docs.kernel.org/admin-guide/reporting-issues.html

However, that bug probably isn't specific enough as you've described it, unless you can find the commit causing it (such as via a git bisect https://docs.kernel.org/admin-guide/bug-bisect.html), or come up with a clearer repro.

Alternatively, if you're seeing the issue on a distro-maintained kernel (such as on fedora/ubuntu/debian with their kernel package), reporting the issue to the distro maintainers may be more appropriate.

[asddubs]

i've had an ubuntu employee fix a kernel bug that rendered my machine unbootable on newer kernels. it was a newer thinkpad so there were quite a few affected users, it'd probably be lesser priority with more obscure hardware. Still, just to support your statement with some concrete experience, reporting to your distro can definitely help