[MinnowBoard] no suitable video mode found booting in blind mode

Scott Murray scott at spiteful.org
Thu May 21 17:55:24 UTC 2015


I've been running with a laptop drive powered off J2 and a m.SATA card on a
Flotsam lure with a cheap 3A wall wart with no issues.

Scott

On Thu, May 21, 2015 at 11:26 AM, Ken Tait <ktait at venturesystemdesign.com>
wrote:

> There is one other trick you can try to verify that this is the real
> problem with your setup.
>
> place a switch in the + line of the wallwart going to the barrel jack.
>
> Turn switch off, plug in barrel jack, plug in wall wart. Wait 5 seconds,
> then turn on the switch. It the board comes up then the supply is right on
> the edge of being large enough.  What you are doing with this test is
> allowing the wallwart to come up to full voltage and charge it's caps
> before applying a load to it.
>
> Another thing I noticed here on all these boards is that the software on
> boot is not quite right..Someone is making the ASSumption that things turn
> on instantaneously in hardware so the software has no or minimal delays on
> boot. This needs to change. For this type of setup there should be a stall
> delay of at least 800ms on first power application before it checks for a
> boot device or anything else..
>
> Hope this helps
>
> Ken
>
> _______________________________________________
> elinux-MinnowBoard mailing list
> elinux-MinnowBoard at lists.elinux.org
> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.elinux.org/pipermail/elinux-minnowboard/attachments/20150521/1ab63be1/attachment.html>


More information about the elinux-MinnowBoard mailing list