On Wed, Jul 22, 2015 at 3:21 AM, Pali Rohár [off-list ref] wrote:

On Tuesday 21 July 2015 19:51:48 Douglas Christman wrote:

quoted

On Tue, Jul 21, 2015 at 3:12 AM, Pali Rohár [off-list ref] wrote:

quoted

It is not enough. If do not want to recompile full kernel, but just only
psmouse.ko I think that the easiest way is to change this define

 #define psmouse_dbg

in file drivers/input/mouse/psmouse.h to call dev_warn instead dev_dbg.
And then just compile psmouse.ko and reload it.

Thanks, that seemed to do the trick.  This is what I get from dmesg now:

[    6.281814] psmouse serio1: cypress_ps2: send extension cmd 0x00, [0 0 0 0]
[    6.540028] psmouse serio1: cypress_ps2: Command 0x00 response data
(0x): 00 00 14
[    6.582031] psmouse serio1: alps: E6 report: 00 00 64
[    6.617471] psmouse serio1: alps: E7 report: 22 02 14
[    6.656974] psmouse serio1: alps: EC report: 10 00 64
[    7.104479] psmouse serio1: alps: E6 report: 00 00 64
[    7.139714] psmouse serio1: alps: E7 report: 22 02 14
[    7.176568] psmouse serio1: alps: EC report: 10 00 64
[    7.368849] psmouse serio1: alps: F5 report: 05 01 0a
[    7.541367] input: AlpsPS/2 ALPS DualPoint Stick as
/devices/platform/i8042/serio1/input/input11
[    7.571454] input: AlpsPS/2 ALPS DualPoint TouchPad as
/devices/platform/i8042/serio1/input/input8

Ok, your ALPS touchpad is identified as:

{ { 0x22, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT } },      /* Dell Latitude D600 */

You mentioned that commit 92bac83d introduced your problem:

========================================
commit 92bac83dd79e60e65c475222e41a992a70434beb
Author: Hans de Goede [off-list ref]
Date:   Sun Apr 12 15:42:35 2015 -0700

    Input: alps - non interleaved V2 dualpoint has separate stick button bits
========================================

Hans, can you look at this problem as it is clearly problem with
protocol V2?

Douglas, can you please make a recording of your touchpad/trackstick
with ps2emu-record?
Download it from https://github.com/Lyude/ps2emu , compile it and run
it as root:
- once the touchpad gets re-initialized:
- click once, wait a few seconds
- click twice, wait a few seconds
- click three times, wait few seconds
- use the touchpad a bit, wait a few secs
- use the trackstick (and its buttons) a bit
- Ctrl-C

And send us the resulting file ps2emu_record.txt that will be created
in the current directory.

Can you also confirm that your laptop has a trackstick as seen on
http://www.newegg.com/Product/Product.aspx?Item=N82E16834114551 ?

Cheers,
Benjamin

PS: I am not sure we tested ps2emu-record on an Alps touchpad before,
apologies if there are some hiccups...
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