jerky mouse still in 7.0-RELEASE

Coleman Kane cokane at FreeBSD.org
Fri Feb 29 13:30:49 UTC 2008


Dominic Fandrey wrote:
> Kris Kennaway wrote:
>> Dominic Fandrey wrote:
>>> Kris Kennaway wrote:
>>>> Well it doesn't rule it out.  X may be introducing latencies that
>>>> are causing your mouse to lose sync or something.
>>>
>>> It's not the mouse that hangs.
>>> It's the only thing that works,
>>> everything else hangs when I combine moused/X. This issue doesn't
>>> exist on all my systems, though. It existed on my old Thinkpad
>>> (Pentium-m 1.3 GHz), it exists on my new notebook (Core2 Duo with
>>> 2.4 GHz), but it doesn't exist on my P4 with 1.6 GHz.
>>>
>>> Key entries, animations, they all just pile up somewhere and happen
>>> all at once when I start using the mouse. To watch a movie I have to
>>> keep the mouse moving all the time.
>>>
>>> It's not a general X and mouse problem, because without moused in
>>> between everything works fine. I think at some point in time a bug
>>> was either introduced in moused, or in my opinion more likely, in
>>> the sysmouse protocol implementation in X.
>>
>> Could also be an interrupt issue.  Either way it's still a different
>> issue to the ones in this thread.
>
> I always thought it's about the same thing and people were just
> imprecise in their perception. The P4 used to be affected by this,
> too. This changed somewhere around RC1, I think. Since all of my
> machines had encountered the problem since I switched them to
> RELENG_7, I thought my problem was very common and it's the one
> everyone is talking about.
Perhaps this is related to the CX / cpu idle level problems we've been
experiencing on a lot of hardware? What is the output of "sysctl -a |
grep cx" on your system?

--
Coleman



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