Re: Usability for touch typers: Keeping fingers on F and J

2014-11-19 Thread Thomas Güttler
Am 19.11.2014 um 10:16 schrieb Chow Loong Jin:
> On Tue, Nov 18, 2014 at 04:27:51PM +0100, Thomas Güttler wrote:
>> [...]
>> I have seen such keyboards before, but I don't want to leave my concave 
>> lenovo trackpoint.
>> This way the switch between keyboard is very small.
>>
>> I have not seen ergonomic keyboards with a trackpoint yet.
>>
>> But even with a ergonomic keyboards with a trackpoint there are a lot of
>> small places where ergonmic work with ubuntu could be improved.
> 
> But Thinkpad keyboards *are* ergonomic. ;-) You just need to figure out how 
> ton
> keep your wrist straight and let your arm follow your hand while typing.
> 
> Trackpoints aren't ergonomic, though. Those things are terrible for the 
> tendons
> on the back of your hand because of how much pressure you need to put into 
> them.
> I still use mine heavily though, with an aggressive sensitivity setting.


I replaced the convex trackpoint with a concav trackpoint and it's much better.
You need much less force. There exist several concav trackpoints. Some
are good, but some are too flat. 

  Thomas

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Re: Usability for touch typers: Keeping fingers on F and J

2014-11-19 Thread Chow Loong Jin
On Tue, Nov 18, 2014 at 04:27:51PM +0100, Thomas Güttler wrote:
> [...]
> I have seen such keyboards before, but I don't want to leave my concave 
> lenovo trackpoint.
> This way the switch between keyboard is very small.
> 
> I have not seen ergonomic keyboards with a trackpoint yet.
> 
> But even with a ergonomic keyboards with a trackpoint there are a lot of
> small places where ergonmic work with ubuntu could be improved.

But Thinkpad keyboards *are* ergonomic. ;-) You just need to figure out how ton
keep your wrist straight and let your arm follow your hand while typing.

Trackpoints aren't ergonomic, though. Those things are terrible for the tendons
on the back of your hand because of how much pressure you need to put into them.
I still use mine heavily though, with an aggressive sensitivity setting.


/etc/udev/rules.d/66-trackpoint-config.rules:
ACTION=="add", SUBSYSTEM=="serio", WAIT_FOR="protocol", 
ATTR{protocol}=="TPPS/2", WAIT_FOR="sensitivity", ATTR{sensitivity}="255"
ACTION=="add", SUBSYSTEM=="hid", DRIVER=="lenovo_tpkbd", ATTR{sensitivity}="255"

/etc/X11/xorg.conf.d/50-trackpoint-acceleration.conf:
Section "InputClass"
Identifier "trackpoint"
MatchProduct "TPPS/2 IBM TrackPoint"
Option "AccelerationProfile"  "2"
Option "AccelerationNumerator" "25"
Option "AccelerationDenominator" "10"
EndSection

Section "InputClass"
Identifier "trackpoint-usb"
MatchProduct "Lite-On Technology Corp. ThinkPad USB Keyboard with
TrackPoint"
Option "AccelerationProfile"  "2"
Option "AccelerationNumerator" "25"
Option "AccelerationDenominator" "10"
EndSection

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Kind regards,
Loong Jin


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Re: Usability for touch typers: Keeping fingers on F and J

2014-11-19 Thread Chow Loong Jin
On Tue, Nov 18, 2014 at 09:23:36AM +0100, Thomas Güttler wrote:
>
> I think the usability of the keyboard/mouse input could be improved a lot.
> 
> touch typing the letters A-Z blind is quite easy to learn.
> 
> But still you need to do yoga with you fingers for keys like Backspace or Del.
> Event Return is finger gym if you want to keep your pointing finger on F and 
> J.
> 
> There exists completely different keyboard layouts like neo or colemark.
> 
> But the switch is hard, too hard.
>
> Are there any touch typers out there? Don't you feel the pain when pressing 
> "Backspace"?
> That's not ergonomic - and at least I - press this key very often.

I'm happily touch-typing on a QWERTY keyboard (Thinkpad X230 user here) at
120WPM. I don't really have much of a problem hitting backspace or return/enter.
I'm also an Emacs user, and the only thing that really bothered me was the
location of the Ctrl key, which my CapsLock key has become. For backspace and
return, I usually flick my wrist clockwise and back. Pinky goes on the Enter
key, and fourth finger goes on the Backspace key. It doesn't seem to affect my
wrist too much when I do that.

I get RSI pains occasionally, but they stopped being much of a problem after I
found this useful video[1] on stretching your muscles when they ache. I believe
that in my case at least, the RSI pains are just muscle fatigue in the same way
your calves burn after a strenuous run.

> What could the current situation be improved?

Nothing that wouldn't break the collective muscle memories of Ubuntu users
unfortunately. Remapping the backspace and enter keys aren't really an option if
you want to keep things usable for end-users.


[1] https://www.youtube.com/watch?v=hUyMNyrOHJQ
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Kind regards,
Loong Jin


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