[Expired for xserver-xorg-input-synaptics (Ubuntu) because there has
been no activity for 60 days.]
** Changed in: xserver-xorg-input-synaptics (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/876782
Title:
Touchpad lose X axis and mostly detect 2 fingers
Status in “xserver-xorg-input-synaptics” package in Ubuntu:
Expired
Bug description:
After some time (randomly) the touchpad stop working correctly.
i'm on a acer aspire 5943g. This is the a grep of my Xorg.log:
[ 32.674] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad
(/dev/input/event9)
[ 32.675] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad
catchall"
[ 32.679] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics
TouchPad'
[ 32.679] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 33.016] (--) synaptics: SynPS/2 Synaptics TouchPad: x-axis range 1472 -
5744
[ 33.016] (--) synaptics: SynPS/2 Synaptics TouchPad: y-axis range 1408 -
4792
[ 33.016] (--) synaptics: SynPS/2 Synaptics TouchPad: pressure range 0 -
255
[ 33.016] (--) synaptics: SynPS/2 Synaptics TouchPad: finger width range 0
- 0
[ 33.016] (--) synaptics: SynPS/2 Synaptics TouchPad: buttons: left right
double triple scroll-buttons
[ 33.016] (--) synaptics: SynPS/2 Synaptics TouchPad: Vendor 0x2 Product
0x7
[ 33.136] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 33.136] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 33.256] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics
TouchPad" (type: TOUCHPAD, id 12)
[ 33.256] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MinSpeed is
now constant deceleration 2.5
[ 33.257] (**) synaptics: SynPS/2 Synaptics TouchPad: MaxSpeed is now 1.75
[ 33.257] (**) synaptics: SynPS/2 Synaptics TouchPad: AccelFactor is now
0.037
[ 33.257] (**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration
scheme 1
[ 33.257] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration profile 1
[ 33.257] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration factor:
2.000
[ 33.257] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration threshold:
4
[ 33.257] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 33.258] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad
(/dev/input/mouse0)
I debugged a little with synclient. Normally (as stated above) the touchpad
area is from 1472 to 5744 for the x-axis and 1408 to 4792 on the y-axis.
When this happen:
1) touching the right side i get x: 5800 (correct), istead on the left side
5600(incorrect). So it's like the x coordinate isn't read correctly on the left
side of the touchpad.
2) Related to the first issue, doing the same thing in an area close to the
bottom-right corner i get a value of x that range from 5000 to 5700. Thus the
touchpad somehow works on the bottom right area.
3) However if i touch on the right area and move to the left area without
removing the finger the x coordinate correctly range from 5800 to 1100!!
4) the other issue it's the wrong number of fingers. Again touching on the
bottom-right corner i get one finger (correct), instead on the left side 2
I didn't find the reason that generated this bug, so i can't reproduce
it. Looking at the xorg logs or dmesg i didn't notice any error
message.
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