Re: mouse still losing sync and thus jumping around

[bhaskara <bhaskara@aludra.usc.edu>]

> On 2005-02-23 16:53:04 Dmitry Torokhov wrote:
> > On Wed, 23 Feb 2005 17:29:49 +0100, Nils Kalchhauser wrote:
> [...]
> >> it seems to me like it is connected to disk activity... is that
> >> possible?
>
> > Yes, It usually happens either under high load, when mouse interrupts
> > are significantly delayed. Or sometimes it happen when applications
> > poll battey status and on some boxes it takes pretty long time. And
> > because it is usually the same chip that serves keyboard/mouse it
> > again delays mouse interrupts.
>
> My notebook is an Acer Aspire 1520 (1524) with a Synaptics Touchpad,
> model: 1, fw: 5.8, id: 0x9248b1, caps: 0x904713/0x4000
>
> Kernels 2.6.11.11 and 2.6.12-rc6
> Synaptics driver 0.14.2
>
> The "lost sync at byte" and "driver resynched" began flooding the logs
> when I enabled Sensors --> Temperatures --> thermal_zone [THRC/THRS] in
> the system monitor gkrellm. I haven't tried battery monitoring.
>
> There are only occasional mouse pointer jumps, but the logfiles grow
> very quickly. I tried reducing the gkrellm updates from 10 times a
> second to 2, but it only had a marginal effect. It seems a bit silly
> that this powerful notebook (AMD64 Athlon 3400+) can't 'multitask'
> correctly.
>
> I thought about just erasing the warning messages from the kernel
> source (don't want to disable warn in syslog completely), but when I
> found the gkrellm culprit I turned off the monitoring instead,
> reluctantly.
>
> My system has no taxing desktop, just a window manager.
>

I had this problem with the ps2 mouse on my desktop even under very light
load. This problem went away the very instant I started using a USB mouse.
So, I don't buy the delayed interrupts explanation.

My 2 cents

-G

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