Touchpad support for X.org ?
hegbloom at pdx.edu
Fri Jun 10 22:36:49 CDT 2005
On Sat, 2005-06-11 at 13:21 +1000, Daniel Stone wrote:
> This is what we do by default on laptops. I don't see why you want to
> move this from done-by-default to a Debconf question?
I'm sorry; it was not there by default when I installed on my one and
only laptop. If it's writing a synaptics entry now, and using the
synaptics driver rather than the ps/2 mouse driver for it, then great
work. Back when I installed this, I had to write it in by hand... in
fact, it was probably an XF86Config originally.
> > With 'SHMConfig' on, GUI and command line tools can change touchpad
> > settings.
> SHMConfig is hideously insecure, and also breaks hard if you have more
> than one X server. So my mum would be there trying to change the
> touchpad settings on her session, and changing them to extremities
> because it's not working. Then I'd log back in to my session and find
> my touchpad is unusable.
Why would more than one X server be running on the typical laptop with a
What are the security risks? Why is it insecure? I must admit relative
ignorance of how SHMConfig actually works. I understand that it's using
shared memory, vs some sort of command pipeline. Isn't access to shared
memory controlled in some way? Apache uses it, right? I promise to
read W.R. Stevens fairly soon... a pristine copy is on my shelf glaring
at me even as I type this.
Do you think there's a way to make it more secure, so that it would be
safe to enable it, or a revised incarnation of something like it?
> > There is also a daemon that turns the touchpad off until 1
> > second after the last keystroke. That prevents pointer taps from thumbs
> > hitting the pad while typing.
> If this relies on SHMConfig, see above.
In honesty, I wish they'd stop making touchpads. I hate them. I always
carry a USB mouse for my laptop anyhow. They should use those eraser
things that IBM Thinkpads have. Those work a lot better than touchpads
do --- more responsive, easier to control, less awkward, less carpal
Karl Hegbloom <hegbloom at pdx.edu>
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