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hoerni1000 · 2016-09-26, 11:15

I have a RasBerry Pi 3 B with LibreELEC running and I bought a "Kuman 3.5 inch 320*480 Resolution Touch Screen TFT LCD Display". Now I think I have to add the driver to LibreELEC because in the list of drivers I can choose in the LibreELEC setting I don`t find the driver for my LCD. Together with the LCD also the driver ws delivered as a gz file. Can someone help me to activate my LCD?

Milhouse · 2016-09-26, 11:24

Upload the gz file somewhere. Not promising it will be supported but it might give clues on what is required.

hoerni1000 · 2016-09-26, 11:57

http://www.mediafire.com/download/57fdc9...701.tar.gz

Milhouse · 2016-09-26, 16:08

I was hoping that would include source code, but it doesn't. Without knowing what driver is needed by your LCD there's not much that can be done. Contact your vendor?

hoerni1000 · 2016-09-26, 17:26

Hi Milhouse,

thank you for taking time for me. I will contact the vendor or send the display back. Does a list of displays exist which are supported by Raspberry PI 3 B and LibreELEC?

Milhouse · 2016-09-26, 22:02

According to this Amazon post the Kuman is based on the ADS7846 which is supported by LibreELEC.

According to the Amazon posting, add the following to your /flash/config.txt:

Code:
dtparam=audio=on

dtparam=spi=on

dtoverlay=ads7846,penirq=25,penirq_pull=2,xohms=150,swapxy=1,xmin=300,ymin=700,xmax=3800,ymax=3400,pmax=255

It talks about a waveshare35a overlay, but this is not something included in the mainline kernel or LibreELEC - you'll need to source this yourself, or do without (no idea what it does).

Good luck.

hoerni1000 · 2016-09-26, 22:45

I cannot edit the config.txt as it seems to be write protected (I tried ist with Filezilla (FTP)).

Milhouse · 2016-09-26, 22:50

Connect using ssh (username: root, password: libreelec) and run:

Code:
mount -o remount,rw /flash

to make the /flash partition read/write.

Or put the SD card in a PC and access the files in the root of the SD card.

hoerni1000 · 2016-09-26, 22:55

ok I made it by this instruction (1.1):
https://wiki.libreelec.tv/index.php?title=Config.txt

What driver shall I define within LibreELEC Settings/Service? I don`t find a ADS7846.

Milhouse · 2016-09-27, 00:38

No idea, sorry. If nobody replies here, try asking on the LibreELEC forum.