Messages in this thread | | | Date | Mon, 4 Jun 2007 13:46:45 -0400 | From | "Dmitry Torokhov" <> | Subject | Re: 2.6.22-rc[23]: blinking capslock led, stuck keys? |
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On 6/4/07, Henrique de Moraes Holschuh <hmh@hmh.eng.br> wrote: > On Mon, 04 Jun 2007, Dmitry Torokhov wrote: > > >...but I'm not quite sure it is a buggy keyboard. It happens _way_ too > > >often. Launch the line above and try to do some typing... > > > > This used to work fine on my box last time I tried it (the switch > > itself is offloaded to a keventd and shoud not get in the way) but > > then they push all kind of ACPI/SMM crap together with KBC so who > > knows... I should try it again when I get home. > > Err... in laptops, almost *always* the KDC is emulated by the embedded > controller, so I bet you're right on the money, there. It is not "a buggy > KDC", it is a buggy EC firmware and/or buggy SMBIOS which is a lot more > common. > > And DoS'ing the EC is very high on the Don't Do That list on a laptop. If > the X60 is only losing keypresses and producing no bigger fireworks, that's > outstanding behavior (as far as I trust ThinkPad firmware, anyway). > > So please throttle anything that might access the KDC way too much (as > compared to normal keyboard operation by an user).
What would be reasonable throttling? Once every 100 ms?
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