Messages in this thread | | | Date | Thu, 13 May 2010 14:21:52 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [git pull] Input updates for 2.6.34-rc6 |
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On Thu, 13 May 2010, Dmitry Torokhov wrote: > > But I guess because there are no devices plugged in ACPI they are "inactive" > and thus ACPI drop them. I was always wondered by ACPI did that. Len?
Btw, even without actual physically plugging in the device, at least the really early KVM boxes used to basically just _physically_ switch between keyboard ports, and so using such a KVM switch is essentially also going to plug it in after boot time.
Some slightly more fancier KVM devices (probably most of them by now - if you want auto-switching etc) have real electronics and actually emulate a keyboard, needed for computers that require a keyboard to even boot up ("Keyboard not detected. Press F1 to continue").
But the hard-switching ones were at least at some point way more reliable: the "smart" ones would have trouble with any "fancy" features like scroll-wheels etc. Probably not an issue any more.
Of course, these days few people use PS/2 keyboards any more, but it would still be a shame to break a perfectly reasonable setup.
Linus
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