[plug] weird touchpad behaviour

[Gavin Chester]

On 29/01/13 14:22, Brad Campbell wrote:
> On 29/01/13 12:51, Gavin Chester wrote:
>> Hi folks,
> 
>> Specifically, the pointer becomes erratic, but not constantly erratic,
>> just enough to seriously irritate. When pointing at a page link or
>> activation button on web pages or an app dialogue the pointer will
>> rapidly jump to another spot (up to 50mm away) on lifting of my finger
>> to tap a left mouse button click. Sometimes the irritation is compounded
>> by the pointer ending up on some other unwanted link just as my finger
>> taps down on the touchpad. Grrr. This sure sounds like a driver issue to
>> me, since a full reboot solves the problem until the long-running
>> 'suspend to ram' cycle is repeated again.
> 
> I have all sorts of strange and difficult to reproduce problems directly
> associated with suspend to ram (i915 I'm looking at you). The benefits
> mostly outweigh the issues though, so I continue to put up with it.

Yes, ages back I had an acer lappie that would see the hard drive spasm
at random times after resuming from ram suspend so gave up using that
feature until I changed to this dell.

> Can you unload and reload the touchpad driver prior to suspend and after
> resume?
> 
> In a number of cases, this has worked around various driver bugs over
> the years.

Thanks. I'll give that suggestion a go.

Also:

Thanks, Garry. I'll be mindful of cleanliness and see how that goes too :-)

Gavin