Hi Thomas, On 2/26/07, Thomas Renninger <trenn@xxxxxxx> wrote:
On Thu, 2007-02-22 at 10:02 -0500, Dmitry Torokhov wrote: > > Hope this makes sense (I must admit it makes little sense to me ;) ). Same for me at the beginning. I tracked two of the HP problems (wrong temperature, wrong _PPC value) down to wrong EC reads -> BIOS issue. Someone (this is the guy who actually solved this) reported that unloading psmouse helps. When I saw this report confirmed by other people a .shutdown workaround was easy and got also confirmed working... And now it even makes a bit sense... There is a little microprocessor (Embedded Controller) pre-processing sensor or other data which gets accessed via ACPI. This one also access mouse/keyboard hardware (described a bit in ACPI specs).
Yes, I am aware that KBC is usually emulated by EC chip nowadays, what does not really makes sense to me is how crazy the firmware is. ...
FYI: You might stumble again over the EC in future... I saw reports where mouse jittering or similar bugs where fixed in drivers/acpi/ec.c If trying ec_intr=0 boot param, not loading any ACPI modules or the big hammer: acpi=off helps to solve mouse or keyboard problems it's probably Embedded Controller related (which might need a fix in ec.c, AML or EC BIOS code (in this case we seem to have the latter problem :) )...).
Yep, seen that, except for AML workarounds. Do you have any examples? Although there seem to be lees complaints about mice jittering nowadays... Or maybe they simply got tired of complaining ;) -- Dmitry - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
