Comments on: LG L1730SF touch screen display in Ubuntu Linux 8.04 Hardy Heron, part 3

By: Mårten

Mårten — Sun, 25 Jul 2010 08:20:07 +0000

I am using an LG1510SF monitor which is quite similar to the 1730.

I am setting it up on a thin client which means that I need a light weight OS. For that I have choosen puppy linux (5.0.1 LuPu based on Lucid Lynx).

The problem I get is that xorg.o.log tells me:
evtouch.c: undefined symbol xf86getmotionevents
and thus fails to load the driver. This leaves me with only the imt driver which, as you know, mirrors the x axis after an xy swap.

Do you have any suggestions on what I might do about this?

By: aadrew

aadrew — Thu, 24 Jun 2010 08:04:06 +0000

i have tried with the ubuntu 9.04 but I cant get to resolve the jumpiness issue, any help will be highly appreciated

By: Valentin Cozma

Valentin Cozma — Thu, 17 Jun 2010 08:41:59 +0000

Ubuntu 8.04.4 ( probably all 8.04 versions)

I have correctly set up udev.rules as described in the article.

At random boots the /dev/input/touch points at mouse1/2 instead of event5.

In that cases the touchscreen is not calibrated ( it works, probably with usbtouchscreen driver and not with evtouch )

I found that restarting udev ( /etc/init.d/udev restart ) fixes the /dev/input/touch to correct event.

After the event is correct, restarting X makes the calibration work.

An idea will be to execute “/etc/init.d/udev restart” before starting gdm .

Hope it will be useful for someone.

By: Vladimir Todorov

Vladimir Todorov — Sat, 30 Jan 2010 18:55:49 +0000

Well, there is somethig wrong with Ubuntu 9.10. In first time it seems that in 9.10 xorg.conf is totaly ignored by gdm, touch screen working, but everything was mirrored. Xorg.conf doesn’t resolve anything including SwapY, Rotate etc… but after I edited /usr/share/hal/fdi/policy/20thirdparty/50-itm.fdi , everithing run smooth, except that my horizontal was swapped. After this every single row in XORG.CONF was working like a charm. Right now I have LG L1730F working on Ubuntu 9.10, but i’ve other problem now that I’cant resolve.

1. My VNC Server is not responding to Mouse and Keyboard. I can see everything, I can move mouse but it seems that mouse clicks are ignored and keyboard not responding.

2. My virtual keyboard (Florence 0.4.6) is installed and working, but when I press some button, button is going to auto sticky mode – its repeating it self – the only way to stop it is to hit some key on hardware keyboard.

Can some one help with this two pains in the a..s ? I spend two days in recofiguring everything whithout luck.

I’ll try to write manual and publish it here for LG L1730SF on Ubuntu 9.10.

Thank you in advanced.
Greetings from Bulgaria

By: trk

trk — Wed, 26 Aug 2009 07:17:12 +0000

@Michael:

I haven’t tested 9.04 yet, because I try to stick with LTS versions when I get the system stabilized. So next update will properly become topical in next April/May.

However, since touch control is currently booming, I wouldn’t be surprised if some changes had been made already and new issues would appear when upgrading. Then again, some things may work slightly better now, especially touch oriented UI modifications may increase usability.

By: Michael Gimm

Michael Gimm — Tue, 25 Aug 2009 20:54:13 +0000

SO good of you to take the time to do this!! This level of detail is hard to come by!

Have you tried ubuntu 9.04 – any new issues here?

Cheers!

By: LG L1730SF touch screen display in Ubuntu Linux 8.04 Hardy Heron, part 2 @ Northern Nerd

Sun, 16 Aug 2009 16:18:01 +0000

[...] part 3, we will finally continue to fine-tuning the calibration of the touch feature. Ubuntu/Linux [...]