Re: Possible regression with "Add hysteresis-based noise reduction" in synaptics driver

2011-11-25 Thread Peter Clifton
On Thu, 2011-11-24 at 23:14 +0100, Simon Thum wrote: > I think it's better to go with a lower default, and if people have a > need they can reduce to zero if they like. I have attached a patch which > provides some more rationale. Thanks.. I'll give this a test when I get a moment. (Please remind

Re: Possible regression with "Add hysteresis-based noise reduction" in synaptics driver

2011-11-24 Thread Simon Thum
On 11/23/2011 12:47 AM, Chase Douglas wrote: > On 11/22/2011 03:19 PM, Simon Thum wrote: >> Before I forget, it's possible (in theory) for the kernel to supply >> "fuzz" values, but I haven't seen that in practical use. Those could >> make it into your property, but I suspect that is what happens.

Re: Possible regression with "Add hysteresis-based noise reduction" in synaptics driver

2011-11-22 Thread Chase Douglas
On 11/22/2011 03:19 PM, Simon Thum wrote: > Hi Peter(s), > > the story behind the default noise cancellation is that I chose what > worked well on my system (25) and figured out a reasonable fraction of > the diagonal that approximately gave me that number (0.5%; see > set_default_parameters). >

Re: Possible regression with "Add hysteresis-based noise reduction" in synaptics driver

2011-11-22 Thread Simon Thum
Hi Peter(s), the story behind the default noise cancellation is that I chose what worked well on my system (25) and figured out a reasonable fraction of the diagonal that approximately gave me that number (0.5%; see set_default_parameters). "My system" refers to an old HW I no longer have in acti

Possible regression with "Add hysteresis-based noise reduction" in synaptics driver

2011-11-21 Thread Peter Clifton
Hi guys, Recently I've been having some difficulties with my touchpad. I do a lot of electronics design work, and this often requires making small precise movements with the pointer. Just recently though, this has been much harder - I've found myself getting frustrated with the CAD package, and I