no keyboard after booting r235646 in laptop FS Amilo D 7830
John Baldwin
jhb at freebsd.org
Mon Jul 9 16:05:19 UTC 2012
On Friday, July 06, 2012 7:25:55 pm Kaho Toshikazu wrote:
> Hello,
>
> John Baldwin <jhb at freebsd.org> wrote:
>
> > Almost all systems use one of the IDs we do support as a _CID if not a _HID.
> > In fact, in this case it likely seems to be a BIOS bug as it used the same
> > value for the _CID and _HID. I suspect it is supposed to be using 0303 as its
> > _CID.
>
> I don't think the BIOS should say PNP0303 as a keyboard _CID.
> Using _CID may help some systems, but it may not be helpful
> for many systems having keyboard probe problem.
> I think it's a specification bug made by Microsoft,
> same devices connected different type devices should not have
> different ID but same ID.
Well, my point is that having a _HID and _CID with the same ID is
pointless. It really does look like a typo in the BIOS source.
> People with this problem can override AML code,
> but I don't think it is a bad idea adding other IDs to the list for probing.
Adding IDs is cheap, so I'm fine with doing so.
--
John Baldwin
More information about the freebsd-current
mailing list