On Monday 04 June 2007 16:57, Pavel Machek wrote: > On Mon 2007-06-04 13:46:45, Dmitry Torokhov wrote: > > On 6/4/07, Henrique de Moraes Holschuh <[EMAIL PROTECTED]> 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? > > Well... this thread began with me having problems with leds blinking > once per ten seconds. I do not think throttling is going to help.
For what it worth I finally tried that setleds loop on my laptop. I am not getting any lost keypresses/releases. But then I don't have EC (or at least it is not exported via ACPI). This is an old Dell notebook. -- Dmitry - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
