Date: Mon, 13 Aug 2001 02:23:45 -0700 From: Terry Lambert <tlambert2@mindspring.com> To: John Baldwin <jhb@FreeBSD.org> Cc: current@FreeBSD.org, Sean Kelly <smkelly@zombie.org>, Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>, Matt Dillon <dillon@earth.backplane.com>, Mike Smith <msmith@FreeBSD.org>, Nate Williams <nate@yogotech.com> Subject: Re: FreeBSD's aggressive keyboard probe/attach Message-ID: <3B779CA1.F06B06FE@mindspring.com> References: <XFMail.010812172532.jhb@FreeBSD.org>
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John Baldwin wrote: > > My suggestion for a probe in this case would be to set up > > a different handler for the reset signal, and then ask the > > keyboard to send the reset signal. If it does, then there > > is a keyboard present. > > Yeah, and resetting the controller works fine on machines that don't > have keyboards, so it returns false positives. I don't *want* the controller reset: that's what makes the LEDs flash and screw up the KVM's. > > More ideally, the FreeBSD box would detect whether or not > > the video card had been disabled, and use _that_ to decide > > whether or not to use a keyboard. It would become the job > > of the video driver -- be it a regular driver, or be it an > > LCD driver -- to make the distinction. > > This might be practical except that lots of motherboards ship with > built-in video these days. I think that disabling this in AMI BIOS, at least, will result in the carry flag being set to indicate INT 10 call failures. > What dance? Works great for me. If SRM uses serial console, so > does FreeBSD. If SRM uses vidconsole, so does FreeBSD. In fact, > this is the _only_ way it can work on the Alpha since SRM just > gives you one console device handle and one boot device handle. > > Have you actually used an Alpha before? :-P Yes, I've used a Miata and a Multia with FreeBSD, and several others with DEC UNIX, and had a PC164 at one time. Surprisingly, setting "vidconsole" in the SRM didn't make my TGA work in FreeBSD. 8-p. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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