prsolucoes
Posts: 1
Joined: Sat Apr 28, 2018 11:10 am

Jessie Lite + unofficial Touchscreen

Sat Apr 28, 2018 11:14 am

Hi,

I have a problem.

I bought this:
https://www.aliexpress.com/item/New-Ras ... 0.0.sausBW

Im using Raspberry Pi 3 and it is showing the screen, but dont respond to touch events.

My current config. I tried other from web.

Code: Select all

max_usb_current=1
hdmi_force_hotplug=1
config_hdmi_boost=7
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_drive=1
display_rotate=0
hdmi_cvt 1024 600 60 6 0 0 0
On the company website they sad to dont use lite version:

https://www.elecrow.com/wiki/index.php? ... uch_Screen

But i need use the lite version and need install the driver or something to make it work.

Can anyone help me?

SteveSpencer
Posts: 368
Joined: Thu Mar 28, 2013 9:19 am
Location: Nottingham, UK

Re: Jessie Lite + unofficial Touchscreen

Mon Apr 30, 2018 1:17 pm

Firstly, you should upgrade to stretch, rather than Jessie.
That said, the following is, I believe, true for both versions.

The "lite" version doesn't include any GUI elements, so the $64,000 question is, what do you expect the touchscreen to actually do?

You can see if the touchscreen is actually recognized by looking through the boot messages (dmesg), and/or by using lsusb to show what devices are present. If it is present, then you will probably need additional software to work with it.
If you run the full version, with a GUI desktop, the GUI is doing all the heavy lifting required to make it work.

I have many different touchscreens, including an earlier model of this one. In many cases, they are running software I have written that talks directly to the framebuffer to display things, and code to read and interpret the touch events. Most of these are on the "lite" version.
Steve S
No, I can't think of anything funny that won't offend someone if they want it to...

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