Messages in this thread | | | Date | Sat, 20 Oct 2007 13:47:55 +0200 | From | "" <> | Subject | Re: Laptop keyboard unusable when ACPI is active was Re: [2.6.22] i8042, ACPI, ipw2100 and issues reported by psmouse.c atkbd.c |
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Pavel Machek ha scritto: > Hi! > Hi! Finally an answer, thank you.
>> legolas558@users.sourceforge.net ha scritto: >> >>> Kernel: 2.6.22-r5 >>> Kernel option: i8042.nomux=1 >>> >> I am now using kernel 2.6.22-r8 (Gentoo) and the following kernel options: >> >> i8042.nomux=1 acpi=off >> >> I have tried kernel 2.6.23-rc9 but the problem is still there. >> > > Try usb keyboard. > I will get one within 24 hours.
> Are you experiencing unusually high latencies in acpi mode? > Yes.
> Any unusual activity on top? > Xorg with XFCE4 - it even happens opening up a mousepad and typing something in it. I do not have particular services running, I have apache, mysql and samba. I have installed it on July, so it's a pretty new system - the problem didn't happen before the most recent kernels.
> Try disabling lm_sensors. > I will and report here.
> Try disabling acpi embedded controller. > How can I accomplish this? Are you referring to the i8042?
> Is it smp box? > It is a laptop (Maxdata Pro 7000 DX) with an Intel Centrino 1.6 GhZ (pentium-m), so it is not.
> Try watching keyboard interrupts. Are they lost? > I am pretty sure they are. I think that ACPI pauses interrupts for a while (100ms?) and so some keyboard interrupts are lost.
See also http://bugzilla.kernel.org/show_bug.cgi?id=9147
I will come up with a test for lm_sensors and the USB keyboard as soon as possible.
Thank you very much -- Daniele
> Pavel >
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