Re: Keyboard Stuttering

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On 10/6/06, David Gerber <[email protected]> wrote:
> I'm experiencing some severe keyboard stuttering on my laptop.  The
> problem is particularly bad in X, and I believe it also occurs at the
> console, though I'm having a difficult time verifying that.  The problem
> shows up as repeated characters (not regular key-repeat-related), and
> sometimes dropped key presses.

(I'm not subscribed to the list, CC: to me if needed)

Same problem here. Intel Core 2 Duo with 2.6.19-rc1 x86_64 SMP. Happens on
2.6.17 too. I use 'noapic' as a workaround but that disables one of the CPU
core of course.

I cannot reproduce the problem within the console nor gdm. Only on the X
desktop.

John,

It looks like the only clocksource available on David's box is
"jiffies" although the processor shows that it supporst tsc and PM
timer is enabled and I think that this is what causes keyboard
stuttering in X. See http://bugzilla.kernel.org/show_bug.cgi?id=7291.
I believe clocksources is your turf, could you please take a look at
this.

Thanks!

--
Dmitry
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