Another ALPS touchpad

I just bought a HP Revolve 810 G1 laptop. (This is a convertible
ultrabook, normally sold with Windows 8.) The touchpad seems to be
another ALPS touchpad, not yet recognized by the kernel; I tried the
Debian package of 3.12 and linux-next-20131224 compiled from
source. Without the proper driver, it is unusuably sensisitive,
registering clicks when my hands are well away from the touchpad.
The relevant line from dmesg is

[    2.776630] psmouse serio4: alps: Unknown ALPS touchpad: E7=73 03 0a, EC=88 b3 18

Should I try hacking drivers/input/mouse/alps.c to see if one of the
existing protocols works?

Thanks,
	Dylan Thurston
	dpt@bostoncoop.net

On Thursday, January 02, 2014 11:59:15 PM Dylan Paul Thurston wrote:

I just bought a HP Revolve 810 G1 laptop. (This is a convertible
ultrabook, normally sold with Windows 8.) The touchpad seems to be
another ALPS touchpad, not yet recognized by the kernel; I tried the
Debian package of 3.12 and linux-next-20131224 compiled from
source. Without the proper driver, it is unusuably sensisitive,
registering clicks when my hands are well away from the touchpad.
The relevant line from dmesg is

[    2.776630] psmouse serio4: alps: Unknown ALPS touchpad: E7=73 03 0a,
EC=88 b3 18

Should I try hacking drivers/input/mouse/alps.c to see if one of the
existing protocols works?

Tommy, Yunkang,

Do you have anything in works to support this new model? Or it is
not an ALPS device at all?

Thanks!

-- 
Dmitry

Hi Dmitry,

Do you have anything in works to support this new model? Or it is
not an ALPS device at all?

Yes, it's an ALPS device and we're now preparing the patch for this new one.
BTW, since it's a ClickPad without seperate buttons, simple resting
finger logic would be added.


-- 
Best Regards,
Tommy

Hi Tommy,

On Sat, Jan 04, 2014 at 01:27:24PM +0800, Tommy Will wrote:

Hi Dmitry,

quoted

Do you have anything in works to support this new model? Or it is
not an ALPS device at all?

Yes, it's an ALPS device and we're now preparing the patch for this new one.
BTW, since it's a ClickPad without seperate buttons, simple resting
finger logic would be added.

Hmm, what finger resting logic? We already properly support clickpads in
X driver (as long as the kernel tells userspace that the device is a
clickpad) so what is missing?

Thanks.

-- 
Dmitry

2014/1/4 Dmitry Torokhov [off-list ref]:

On Thursday, January 02, 2014 11:59:15 PM Dylan Paul Thurston wrote:

quoted

Yes, it's an ALPS device and we're now preparing the patch for this new one.
BTW, since it's a ClickPad without seperate buttons, simple resting
finger logic would be added.

Hmm, what finger resting logic? We already properly support clickpads in
X driver (as long as the kernel tells userspace that the device is a
clickpad) so what is missing?

I remember in previous kernel version, I tried to register the device
as clickpad but only left/right button click can be recognized by
X-Server. When putting 1finger still in button area and moving another
finger in normal area, X-Server would not consider it as 1finger
cursoring.

Looks like this:

http://ubuntuforums.org/showthread.php?t=1991841

Does X-server have already supported this feature? (I'm sorry I did
not try the latest X-Server)

-- 
Best Regards,
Tommy

On Sat, Jan 04, 2014 at 02:08:26PM +0800, Tommy Will wrote:

2014/1/4 Dmitry Torokhov [off-list ref]:

quoted

On Thursday, January 02, 2014 11:59:15 PM Dylan Paul Thurston wrote:

quoted

quoted

Yes, it's an ALPS device and we're now preparing the patch for this new one.
BTW, since it's a ClickPad without seperate buttons, simple resting
finger logic would be added.

Hmm, what finger resting logic? We already properly support clickpads in
X driver (as long as the kernel tells userspace that the device is a
clickpad) so what is missing?

I remember in previous kernel version, I tried to register the device
as clickpad but only left/right button click can be recognized by
X-Server. When putting 1finger still in button area and moving another
finger in normal area, X-Server would not consider it as 1finger
cursoring.

Looks like this:

http://ubuntuforums.org/showthread.php?t=1991841

Does X-server have already supported this feature? (I'm sorry I did
not try the latest X-Server)

It should as far as I know (I do not have any clickpad devices).

Thanks.

-- 
Dmitry

2014/1/4 Dmitry Torokhov [off-list ref]:

On Sat, Jan 04, 2014 at 02:08:26PM +0800, Tommy Will wrote:

quoted

Does X-server have already supported this feature? (I'm sorry I did
not try the latest X-Server)

It should as far as I know (I do not have any clickpad devices).

Got that, thanks! We would check that with latest kernel.

-- 
Best Regards,
Tommy

On Sat, Jan 04, 2014 at 01:27:24PM +0800, Tommy Will wrote:

Hi Dmitry,

quoted

Do you have anything in works to support this new model? Or it is
not an ALPS device at all?

Yes, it's an ALPS device and we're now preparing the patch for this new one.

Glad to hear it's being worked on! I'm eager to test out anything.

BTW, since it's a ClickPad without seperate buttons, simple resting
finger logic would be added.

I didn't quite follow this or the following discussion. One thing I
wanted to look into was whether it was possible to have a middle mouse
click in addition to the left and right clicks. I had reported
spurious clicks with the generic driver; I'm quite sure I'm not
actually touching the pad when this happens, in case that's relevant.

--Dylan Thurston

2014/1/4 Dylan Paul Thurston [off-list ref]:

I didn't quite follow this or the following discussion. One thing I
wanted to look into was whether it was possible to have a middle mouse
click in addition to the left and right clicks.

Normally, clickpad only supports Left/Right click. I'm afraid middle
click would not be supported as standard.
However, if you have interest in middle click, based on our patch, you
can support that by yourself.
# Since it's a clickpad with only one button, you can report any
button event as you like by detecting the finger area when clicking.

I had reported spurious clicks with the generic driver; I'm quite sure I'm not
actually touching the pad when this happens, in case that's relevant.

I'm not sure where is wrong with generic driver. We would check the
behavior with latest kernel later.


-- 
Best Regards,
Tommy

On Sun, Jan 05, 2014 at 10:53:52AM +0800, Tommy Will wrote:

2014/1/4 Dylan Paul Thurston [off-list ref]:

quoted

I didn't quite follow this or the following discussion. One thing I
wanted to look into was whether it was possible to have a middle mouse
click in addition to the left and right clicks.

Normally, clickpad only supports Left/Right click. I'm afraid middle
click would not be supported as standard.

On devices that lack middle button middle click is usually emulated by
pressing both left and right buttons. Also, since this is multi-touch
device quite often middle click is mapped on 2- or 3-finger tap. All of
that is done in X driver and not in kernel.

Thanks.

-- 
Dmitry

2014/1/6 Dmitry Torokhov [off-list ref]:

On devices that lack middle button middle click is usually emulated by
pressing both left and right buttons. Also, since this is multi-touch
device quite often middle click is mapped on 2- or 3-finger tap. All of
that is done in X driver and not in kernel.

Thanks for your info. Got that.

-- 
Best Regards,
Tommy