[wacom] Pen pressure is a little erratic
Bug #1421503 reported by
Daniel van Vugt
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Mir |
New
|
Low
|
Unassigned | ||
mir (Ubuntu) |
New
|
Low
|
Unassigned |
Bug Description
On a wacom sensor (ThinkPad X220T), I can paint in mir_demo_
I'm wondering if we're processing the "pressure" value incorrectly, or if this is just an unavoidable hardware issue.
summary: |
- [wacom] Stylus pressure is a little erratic + [wacom] Pen pressure is a little erratic |
Changed in mir: | |
importance: | Undecided → Low |
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One thing im aware of is that max pressure is device specific and needs to
be queried via a device enumeration API (In android and evdev terms, we can
do something different)
On Thu, Feb 12, 2015 at 7:10 PM, Daniel van Vugt <
<email address hidden>> wrote:
> Public bug reported: client_ fingerpaint using the stylus/pen (and its eraser). /bugs.launchpad .net/bugs/ 1421503 /bugs.launchpad .net/mir/ +bug/1421503/ +subscriptions
>
> On a wacom sensor (ThinkPad X220T), I can paint in
> mir_demo_
> Weirdly though the pen tip seems to only alternate between all-on and
> all-off. Meanwhile painting with the larger softer eraser end gives me a
> nice wide range of pressure visible in the fingerpaint demo as opacity.
>
> I'm wondering if we're processing the "pressure" value incorrectly, or
> if this is just an unavoidable hardware issue.
>
> ** Affects: mir
> Importance: Low
> Status: New
>
>
> ** Tags: input wacom
>
> ** Summary changed:
>
> - [wacom] Stylus pressure is a little erratic
> + [wacom] Pen pressure is a little erratic
>
> ** Changed in: mir
> Importance: Undecided => Low
>
> --
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>
> Title:
> [wacom] Pen pressure is a little erratic
>
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