[coreboot] Asus KGPE-D16 with latest coreboot errors with Unsupported Hardware on Qubes 4 install missing IOMMU?

Nico Huber nico.h at gmx.de
Tue Dec 4 10:18:19 CET 2018

On 03.12.18 19:50, petecb via coreboot wrote:
> I have attached a text file with an overview of all the options I have
> selected with the nconfig utility, on the off-chance someone spots
> something I have done wrong.

Best way to find out is to disable USE_OPTION_TABLE again and leave
everything else as is. If that doesn't result in a reliable image,
the option table is not to blame. Actually, we try to discourage
developers from adding options that may result in a failure, but
you never know.

You can use `make savedefconfig` to save the options that differ from
their default. It writes into a file `defconfig`. That's probably better
than your "screenshots" (unless the D16 requires non-default settings to

Regarding the cmos.default, IMHO, somebody should go through all the
options (from `interleave_chip_selects` to `maximum_p_state_limit` in
cmos.layout), check where they are used in the code (e.g. `git grep
\"interleave_chip_selects\"`) and document their defaults in absence
of the option table (i.e. when get_option() returns a failure or
doesn't do anything at all). Then we'd be able to discuss sane defaults.
Though, we'd need to take all boards using the respective code paths
into account.


More information about the coreboot mailing list