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#1 2016-10-18 14:19:12

Bearded_Blunder
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Registered: 2015-09-29
Posts: 730

[SOLVED] General Dynamics laptop touch screen interface inverted.

Just installed to an General Dynamics/Itronix GD8200 laptop, for some odd crazy reason, although the touch screen appears to function, touching at the top of the screen causes the cursor to jump to the bottom, and vice-versa, touching at the bottom, makes it jump to the top. It appears about right left to right.

I've got about no idea where to start with this, I did find this post on the Debian furums regarding fine-tuning the calibration, which has me wondering if I can simply specify the y axis reversed to correct things?  So instead of the example 0 4000 0 4000 I'd maybe use (corrected for my actual system) 0 4000 4000 0?

Would that be safe to experiment with? I know that incorrect display settings can do actual harm, but I have no idea for touch input settings, and I'd prefer to avoid risks with expensive (to me) hardware, even if it is an old used laptop to others.

Just to add to my confusion, the touch screen appears twice doing "xinput list"

beardy@GD8200-DB-BL:~$ xinput list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ eGalax Inc. USB TouchController         	id=11	[slave  pointer  (2)]
⎜   ↳ eGalax Inc. USB TouchController         	id=12	[slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad              	id=14	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=13	[slave  keyboard (3)]
beardy@GD8200-DB-BL:~$ 

so I've no idea if i should be using id 11 or 12...

Last edited by Bearded_Blunder (2016-10-20 05:18:33)


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#2 2016-10-18 21:30:51

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
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Re: [SOLVED] General Dynamics laptop touch screen interface inverted.


“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.

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#3 2016-10-19 00:26:12

Bearded_Blunder
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Re: [SOLVED] General Dynamics laptop touch screen interface inverted.

I have now, being previously unaware of it, once installed, it adds an extra process to the list of running processes, with no other discernable effect.


Blessed is he who expecteth nothing, for he shall not be disappointed...
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#4 2016-10-19 06:18:02

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
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Re: [SOLVED] General Dynamics laptop touch screen interface inverted.

Does this do anything:

x11-touchscreen-calibrator

You will have to excuse me, I hate touchscreens and thus have no personal experience of their configuration so I'm shooting in the dark here big_smile


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#5 2016-10-19 11:26:17

redcollective
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From: The Wilds
Registered: 2015-09-29
Posts: 111

Re: [SOLVED] General Dynamics laptop touch screen interface inverted.

This looks useful:

https://wiki.ubuntu.com/Touchscreen

particularly the eGalax info at the bottom.

Red


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#6 2016-10-20 03:43:27

Bearded_Blunder
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Re: [SOLVED] General Dynamics laptop touch screen interface inverted.

Head_on_a_Stick wrote:

Does this do anything:

x11-touchscreen-calibrator

You will have to excuse me, I hate touchscreens and thus have no personal experience of their configuration so I'm shooting in the dark here big_smile

You are excused smile I'm not fond of touch screens either, if it didn't work at all, I wouldn't even be persuing making it work, however, one thing i dislike more than touch screens, is things that work incorrectly that's tied to an autistic spectrum disorder, since it almost works, it'll bug me forever if I don't get it working right.

To answer your question, it reports my screen resolution, and then sits till I ctrl+c out

beardy@GD8200-DB-BL:~$ x11-touchscreen-calibrator
screen: 1024x768, display: 1024x768 (0,0), preferred: 1024x768 (LVDS1), scaling mode: 'Full aspect' RR_Rotate_0

I'm about to go persue the link provided by @redcollective which does indeed look promising, and will report back with what I find.

Update wrote:

Following the above mentioned link, downloading and installing the eGalaxTouch driver and utilities has enabled me to resolve the issue.

Many thanks @redcollective

Marked [SOLVED] Title edited to snag appropriate searches.

Last edited by Bearded_Blunder (2016-10-20 05:19:41)


Blessed is he who expecteth nothing, for he shall not be disappointed...
If there's an obscure or silly way to break it, but you don't know what.. Just ask me

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