On Fri, Dec 25, 2009 at 12:54:16PM +0100, Erik Andrén wrote: > 2009/12/25 Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>: > > On Thu, Dec 24, 2009 at 11:54:27AM +0100, Erik Andrén wrote: > >> 2009/12/23 Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>: > >> > On Wednesday 23 December 2009 03:13:04 am Erik Andrén wrote: > >> >> Hi, > >> >> I have a ASUS 1005HA netbook equipped with a Synaptics touch pad: > >> >> [ 18.341491] Synaptics Touchpad, model: 1, fw: 7.2, id: 0x1a0b1, > >> >> caps: 0xd04731/0xa40000 > >> >> > >> >> In Linux, no multitouch capabilities are detected (Zoom, two and three > >> >> finger button presses etc.). > >> >> This all works with the same hardware in windows 7. > >> >> Is there a bug in the linux driver preventing multitouch to work? > >> >> > >> > > >> > Linux Synaptics driver does not have full multitouch support (yet?). The 2- > >> > and 3- finger taps should work (provided that they are enabled in SYnaptics X > >> > driver) but there is no multiple finger tracking... > >> They don't. I've tried with the 1.1.2 and 1.2.0 version of the xorg > >> synaptics driver. But if this is the issue I guess I should take this > >> inquiry to the proper xorg mailing list. > > > > Not yet, kernel needs to add support for this as well. > > > >> > >> > > >> > BTW, the capability 0xd04731 indicates that your hardware does not report > >> > multi-finger taps. > >> > > >> I'm aware of that, but why does pinch and zoom then work in windows 7? > >> Is it possible to emulate this with a single touch touchpad? > >> > > > > I think your touchpad is a fully multi-finger one, not just multi-finger > > tapping like older touchpads. Only multi-finger tapping is currently > > supported by Synaptcs X driver. > > > Could you elaborate on what a multi-finger touchpad is? Multi-finger touchpad (or touchscreen) is a device that can recognize several objects touching the surface of the device and report separate sets of coordinates (and maybe more data) for every object. > The Synaptics PS/2 Touchpad Interface Guide, 3.2.6 states that two and > three fingers are only detected when the capMultiFinger capability is > detected which according to the driver isn't detected for this > touchpad. > Apparently this guide is a bit obsolete. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
