[whysoserious]

That seems to have worked! 

I'm not using a Chromebox, but instead a Gigabyte Brix BXi3-4030. I didn't think to look in the Chromebook wiki. 


Will I have to re-apply this fix after every update?

 FYI, the kernel parameter 'pcie_aspm.policy=performance' is a better workaround / offers better performance

also, if you can pastebin the output of  'lspci -vv -s 3:00.0' (run as sudo if not under LE) that would be helpful in troubleshooting the issue 

<add ' pcie_aspm.policy=performance' after 'quiet'> question?

Should the new parameter be added *after* 'quiet' on the same line, or on a new line below it? And boy howdy, isn't nano fun to figure out for a command line noobie? :-)