"Disable while typing" should disable cursor movement
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
One Hundred Papercuts |
Confirmed
|
Low
|
Unassigned | ||
System76 |
Fix Committed
|
High
|
Jason Gerard DeRose | ||
gnome-settings-daemon (Ubuntu) |
Confirmed
|
Low
|
Unassigned |
Bug Description
On a modern laptop with a large touchpad/clickpad, your palms tend to brush the touch surface as you type. The problem is that on Ubuntu, this creates an annoying amount of cursor wiggle. Competing platforms don't have this problem, so this needs to be improved on Ubuntu.
Part of the problem is that `xserver-
Currently syndaemon is launched like this:
syndaemon -i 1.0 -t -K -R
The "-t" option tells syndaemon to never block cursor movement. It will only block accidental vertical scrolling (which is darn near impossible to do on a modern system with two finger scrolling), and block accidental tap-to-click (which seems unlikely something you can do by mistake with your palms). So from a user perspective, "Disable while typing" currently does nothing.
I'm proposing that syndaemon instead be launched like this:
syndaemon -i 0.5 -K -R
Without the "-t" option, syndaemon will block cursor movement, vertical scrolling, and tap-to-click. And the "-i 0.5" means it will block it for 500ms (half a second).
System76 has been shipping a patched `gnome-
We've also done a lot of testing and tuning on the timeout threshold, and 500ms seems like about the sweet spot. It's long enough to be decently effective for most typists, but not so long that the user will catch the trackpad still disabled when they move from typing back to "cursoring" :P
Note that this isn't a prefect solution, and you really can't do this especially well with a static timeout anyway (would be better to be dynamic based on typing speed). For slow typists, 500ms often isn't long enough. But for now, I feel it's better to find that sweet spot where it at least gives some improvement for most users, without causing any negative impact for any users.
I have a Saucy package available for testing here:
https:/
And the proposed branch here:
https:/
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: gnome-settings-
ProcVersionSign
Uname: Linux 3.11.0-3-generic x86_64
NonfreeKernelMo
ApportVersion: 2.12.1-0ubuntu2
Architecture: amd64
Date: Thu Aug 22 07:35:33 2013
MarkForUpload: True
SourcePackage: gnome-settings-
UpgradeStatus: No upgrade log present (probably fresh install)
Related branches
- Luke Yelavich (community): Needs Information
-
Diff: 4202 lines (+1384/-2531)9 files modified.pc/applied-patches (+1/-0)
.pc/git_keybindings_add_screen_reader_toggle.patch/data/org.gnome.settings-daemon.plugins.media-keys.gschema.xml.in.in (+0/-212)
.pc/sync_input_sources_to_accountsservice.patch/configure.ac (+0/-609)
.pc/sync_input_sources_to_accountsservice.patch/plugins/keyboard/gsd-keyboard-manager.c (+0/-1708)
.pc/tune-syndaemon.patch/plugins/mouse/gsd-mouse-manager.c (+1354/-0)
debian/changelog (+7/-0)
debian/patches/series (+1/-0)
debian/patches/tune-syndaemon.patch (+20/-0)
plugins/mouse/gsd-mouse-manager.c (+1/-2)
Changed in system76: | |
status: | New → Fix Committed |
importance: | Undecided → High |
assignee: | nobody → Jason Gerard DeRose (jderose) |
description: | updated |
Changed in gnome-settings-daemon (Ubuntu): | |
importance: | Medium → Low |
Changed in hundredpapercuts: | |
importance: | Undecided → Low |
Note that the diff is mostly UDD accounting in the .pc directory, but the actual patch is tiny:
http:// bazaar. launchpad. net/~jderose/ ubuntu/ saucy/gnome- settings- daemon/ tune-syndaemon2 /view/head: /debian/ patches/ tune-syndaemon. patch