Hi!
Automatic detection of BYD touchpads was sadly disabled at the end of
last year. They can be still be used by forcing the protocol manually as
described by Kai-Heng Feng above.
The reason for disabling detection was that the detection code generated
false positives with normal PS/2 mice (mean
Yep - I changed the bug status to "Fix committed" which I think makes
the most sense - it's committed upstream but as you say won't be fixed
properly in Ubuntu until they update to a newer kernel version (or
backport it).
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Bu
A driver for this has been added upstream - see Linux kernel commits
98ee377144935857d8ad5d7d70cdab1da4ede32e and
98ee377144935857d8ad5d7d70cdab1da4ede32e.
** Changed in: linux (Ubuntu)
Status: Triaged => Fix Committed
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*previous comment continued.
Gesture recognition is done by the touchpad and not the driver, and it's
not very good. I.e., it reports the gesture, not the finger positions,
so we can't configure things like scroll threshold.
The way to improve this would be to somehow put it in 'absolute' mode,
w
Ok, so I've managed to write a kernel driver, as an extension to
psmouse, which recognises the touchpad and puts it into gesture-enabled
mode. Currently it recognises and uses vertical and horizontal two
finger scrolling, and also knows about the other gestures (but I haven't
got around to figuring
** Attachment added: "Qemu 2.2.0's hw/input/ps2.c, modified to dump data
from/to the touchpad"
https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1424293/+attachment/4328778/+files/ps2.c
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Bugs, which is subs
Using the technique here: http://blog.forshee.me/2011/11/touchpad-
protocol-reverse-engineering.html (with Qemu - I couldn't get it to work
under VBox), I have obtained a trace of the interaction between Windows
driver and touchpad on Windows 7 with all features working (two finger
scrolling, pinch
** Attachment added: "A trace of the sent and received bytes between BYD
touchpad and windows driver running in Qemu."
https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1424293/+attachment/4328779/+files/example_trace_w7_qemu.txt
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Hi,
It has been fixed for 'Dolphin V1' touchpads - the driver is upstream so
they are fine.
The problem is that 'Doplhin V2' touchpads don't yet work - although a
driver has been written (it's in the DKMS module and works great), it
hasn't yet been pushed to the mainline kernel.
It would be grea
Hi all,
I have a Dell Vostro 3360 with a 'Dolphin V2' touchpad, running linux 3.10-rc1
(latest from git).
I have been using the psmouse-alps-1.3-alt.tbz driver, works fine (touchpad
detected, multitouch, not too jumpy) except for edge scrolling (but I don't
care about that because two-finger sc
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