Bug#950981: touchpad stopped working reliably

[Timo Aaltonen <tjaalton@debian.org>]

On 10.2.2020 8.34, Michael Biebl wrote:
> Am 10.02.20 um 07:15 schrieb Timo Aaltonen:
> > On 9.2.2020 11.20, Michael Biebl wrote:
> > > On Sun, 09 Feb 2020 09:17:49 +0100 Michael Biebl <biebl@debian.org>
> > > wrote:
> > >
> > > > Device:           SynPS/2 Synaptics TouchPad
> > > > Kernel:           /dev/input/event5
> > > > Group:            8
> > > > Seat:             seat0, default
> > > > Size:             74x43mm
> > > > Capabilities:     pointer gesture
> > > > Tap-to-click:     disabled
> > > > Tap-and-drag:     enabled
> > > > Tap drag lock:    disabled
> > > > Left-handed:      disabled
> > > > Nat.scrolling:    disabled
> > > > Middle emulation: disabled
> > > > Calibration:      n/a
> > > > Scroll methods:   *two-finger edge
> > > > Click methods:    *button-areas clickfinger
> > > > Disable-w-typing: enabled
> > > > Accel profiles:   none
> > > > Rotation:         n/a
> > >
> > > I re-installed 1.15.1 and here's the same output
> > >
> > > Device:           SynPS/2 Synaptics TouchPad
> > > Kernel:           /dev/input/event5
> > > Group:            8
> > > Seat:             seat0, default
> > > Size:             53x24mm
> > > Capabilities:     pointer gesture
> > > Tap-to-click:     disabled
> > > Tap-and-drag:     enabled
> > > Tap drag lock:    disabled
> > > Left-handed:      disabled
> > > Nat.scrolling:    disabled
> > > Middle emulation: disabled
> > > Calibration:      n/a
> > > Scroll methods:   *two-finger edge
> > > Click methods:    *button-areas clickfinger
> > > Disable-w-typing: enabled
> > > Accel profiles:   none
> > > Rotation:         n/a
> > >
> > > Notice how the size is much smaller.
> > > I suspect what happens is, that when I swipe into the outer areas
> > > libinput simply ignores those events due to the wrong dimensions.
> > >
> > > 74x43mm appears like the correct size, 53x24mm is way too small
> >
> > alright, needs to be reported upstream:
> >
> > https://gitlab.freedesktop.org/libinput/libinput/issues
>
> Can you give me some hints which information I should include in the
> upstream bug report?

the libinput output above for starters, they'll ask for more if needed

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