[coreboot] Blank screen during boot and max CPU fan speed for ASUS KGPE-D16

[Zoran Stojsavljevic]

> The full speed fan is normal.  These are server boards and coreboot
> *purposefully sets the fans to full speed until the OS boots* and can take
> over fan control duties via 'fancontrol' [1] or a similar application.
> Note that the 'w83795' kernel module is required for this to work.

Correct me if I am wrong, but how I understood the topic/problem, the fans
continue to blow full speed indefinitely even after OS boots, don't they?

Zoran

On Tue, Dec 5, 2017 at 8:26 PM, Timothy Pearson <
tpearson at raptorengineering.com> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 12/05/2017 01:05 AM, Daniel K wrote:
> >
> >
> > Hello,
> >
> >
> > I'm trying out coreboot for the first time. This is great work you are
> > all doing.
> >
> > Having a few issues with my ASUS KGPE-D16 and wonder if anyone could
> help.
> >
> >
> > The issue is that my CPU fans appear to spin at maximum speed at all
> > times, and the whole boot process is black until my Debian login screen.
>
> The full speed fan is normal.  These are server boards and coreboot
> purposefully sets the fans to full speed until the OS boots and can take
> over fan control duties via 'fancontrol' [1] or a similar application.
> Note that the 'w83795' kernel module is required for this to work.
>
> Alternatively, you can install a reflashed iKVM module with the beta
> version of the OpenBMC port for this board [2].  This is somewhat more
> complex, but if you have all of the fan connectors plugged in the BMC
> can handle fan control independently from the host CPU.  If you have
> only a handful of fans, or very slow fans, connected, then you would
> need to modify the OpenBMC source and rebuild, since OpenBMC has no way
> of determining whether uninstalled / slow fans are disconnected or failed.
>
> Hope this helps!
>
> [1] https://linux.die.net/man/8/fancontrol
> [2] https://www.raptorengineering.com/coreboot/kgpe-d16-bmc-
> port-status.php
>
> - --
> Timothy Pearson
> Raptor Engineering
> +1 (415) 727-8645 (direct line)
> +1 (512) 690-0200 (switchboard)
> https://www.raptorengineering.com
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1
>
> iQEcBAEBAgAGBQJaJvL0AAoJEK+E3vEXDOFbx7EIAL2oF7HRCkuyeKLg6Y1jynR5
> nNtgqh2SRooAnMpor/G5z/pA4Lo/iq76CNYh6Z9gXlUaB2LP1Gz6IMprt6+VGrDQ
> wEZbQS1O0MBQriNhD8k/IllljZm4uo0JCe08BgZZW3UXui9z5sxKf3diOsdYn4oA
> X1S6sbGtT0qiqykuVPZyTlHti1+LIFeQRWXcihAs6UFOIpV4h3lXdCZE0iSNJbka
> ZCID3e56BoPXA6HE9Df8vm90NVkhCYXCssE4U1LuOgKz4JA3PkXI0F9yPyYpNc9v
> ZnNFsgS8fpu9FvEdCTy6wT7kSxcJEWCPgLu8msMts04RkP9bok3yuODm6mpL/LM=
> =Pq6E
> -----END PGP SIGNATURE-----
>
> --
> coreboot mailing list: coreboot at coreboot.org
> https://mail.coreboot.org/mailman/listinfo/coreboot
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot/attachments/20171206/014fdc31/attachment.html>