_How to repeat_
This has been repeatable on 11.10 and now 12.04 of Lubuntu.
* I click the "Start"-button in Lubntu -> Preferences -> Keyboard and Mouse -> Keyboard-tab. I adjust the sliders and click OK. I repeat the process and notice that the sliders are back to their original positions before adjustments.
* I open an lxterminal -> type: lxinput -> click the Keyboard-tab. I adjust the sliders and click OK. I repeat the process and notice that the sliders are back to their original positions before adjustments.
_How to circumvent the problem_
This works as of Lubuntu 12.04.
* I open the file .config/lxsession/Lubuntu/desktop.conf and adjust the [Keyboard]-section values in an editor, save the values, reboot and enjoy the new settings. The adjusted settings are also visible in lxinput after reboot.
_Weird circumstances_
I have not yet pinpointed this in Lubuntu 12.04, but while doing tests with lxinput (running it with sudo, for instance) the settings seem to go back to their defaults of repeat delay of 500 and repeat interval of 30.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: lxinput 0.3.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
Date: Fri Apr 27 08:33:56 2012
InstallationMedia: Lubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: lxinput
UpgradeStatus: Upgraded to precise on 2012-04-26 (0 days ago)
I did a bit more testing on "sudo lxinput". This indeed resets the values to their defaults of repeat delay of 500 and repeat interval of 30. It also affects my own user session. Now, I'm not saying that sudo is useful at all in the case of changing settings for my own user but I just didn't expect this to happen. Changing the sliders on the Keyboard-tab and clicking OK does not affect either delay or repeat. They stay at their defaults.