Date: Sat, 03 Oct 1998 23:37:06 -0700 From: Mike Smith <mike@smith.net.au> To: Terry Lambert <tlambert@primenet.com> Cc: mike@smith.net.au (Mike Smith), yokota@zodiac.mech.utsunomiya-u.ac.jp, current@FreeBSD.ORG Subject: Re: VM86 and APM Message-ID: <199810040637.XAA02205@dingo.cdrom.com> In-Reply-To: Your message of "Sun, 04 Oct 1998 03:14:56 -0000." <199810040314.UAA22004@usr06.primenet.com>
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> > Yes. It may mean that it's disabled in the BIOS setup, or that the APM > > BIOS doesn't support being connected to from VM86 mode. I haven't > > heard any confirmation that this might be common. > > Note that the Cyrix Media GX, among other processors, expects SMI > (System Management Interface; includes APM) traps implemented in the > system BIOS. > > These may, in fact, fail in VM86 mode, based on the actual code used > to implement the traps. This would likely fail any BIOS vendor's earliest testing, as it would break any VxD driver, or operation of DOS with any memory manager loaded. It may, however, break on your BIOS if you're not careful. My recommendation: be careful. > > > May be the APM BIOS is deficient? > > > > Possibly, but you wouldn't expect so. Try booting the non-VM86 kernel > > from a cold power-on, and see if the probe still fails. > > The other thing may be that you have updated your BIOS via flash > with a newer, but less APM knowledgable version. 8-(. Also possible that the new BIOS is ACPI-only. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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