Odd issues with Cando touch screen

[Peter Hutterer]

On Sun, Jul 08, 2012 at 08:29:40PM +0000, Chandler Paul wrote:
> Hello, I just recently got my hands on a Lenovo S10-3t, and installed Gentoo on it. Everything seems to work, however I am having two problems with the touch screen related to Xorg.
> For one, evdev does not seem to honor my settings no matter what I do. I have tried to turn on the option "ThirdButtonEmulation" With evdev so that doing a long press on a spot on the screen will have evdev emulate a right click, however even though I can see that Xorg does indeed have the option turned on, it does not actually seem to take affect. I have already checked to make sure that Xfce was not interferring with the settings by trying it in plain Xorg with twm, however it still seems to act the same.
> In addition, I also am unable to interact with window borders in Xfce with my touch screen. I am not sure whether or not this is the fault of Xfce or Xorg, so I figured I might as well ask this here too. Basically, whenever I try to move, close, minimize, etc. any window by using it's title bar, nothing happens. The title bar seems to completely ignore any input from the touch screen, however if I try to do the same with my touchpad I encounter no issues.
> I've already asked forums, the Gentoo mailing lists, IRC chat rooms, and I've still yet to come up with a solution to this issue, I'm almost starting to think it's actually a bug with Xorg. Hopefully I'll be able to find some sort of solution here.

hard to tell without any log but my suspicions:
- right mouse button emulation only works for non-multitouch touchscreens.
  if your touchscreen does speak the kernel's touch event protocol, the
  right button emulation won't be handled in the driver, it's expected to be
  handled in the client stack
  evtest should tell you, if you see ABS_MT_POSITION_X, etc. come in for
  touches then you can't use the driver's button emulation
- use xev to look at what events are sent by the device. if they look
  normal, the issue is unlikely in the server. one possibility is that your
  WM registers for touch events but doesn't do anything with them?
  does the touchscreen work otherwise?

Cheers,
  Peter