6

I connected my 3.5" touchscreen display to the raspberry and nothing appears on it.

When I start the raspberry, only the white screen appears and doesn't disappear.

However, connecting an external monitor (via hdmi) works fine.

What is the problem? Maybe some drivers missing? Is it possible to install them? Is this a known problem?

I'm running NOOBS 1.4.1

Maybe should I try their distribution?

  • Can you give us display link ? – dhruvvyas90 Aug 11 '15 at 6:02
  • @dastaan I edited my question. Some stuff is here. – Ionică Bizău Aug 11 '15 at 6:07
  • Most - if not all - displays don't work out of the box. Almost sure it's because a driver problem - or better a lack of driver. It won't hurt to download their image and give it a try. It's easy to copy the image to your card and you'll find out directly whether your display is actually a working one or a broken one. – EDP Aug 11 '15 at 6:54
  • @EDP And is there a general solution for these problems? – Ionică Bizău Aug 11 '15 at 6:55
  • I've edited my comment above. – EDP Aug 11 '15 at 6:56
7

Indeed, it was a problem with the drivers. I switched to use Raspbian and then I installed the drivers, like explained here.

  • Dowloaded the driver
  • Extracted the files (tar xvf LCD-show.tar.gz)
  • cd LCD-show/
  • sudo ./LCD35-show (this depends on the display size, mine is 3.5")

In my case it didn't reboot automatically, but it displayed some messages regarding that. I unplugged the pi and force-restarted.

  • I was facing the same problem but with the addition that I had to put the LCD-show directory right into the home of the user pi ~/LCD-show. – Bostrot Sep 13 at 20:00
0

I came across the same issue, i bought a similar item (linked below) but couldn't find matching drivers for the lcd (@Ionică Bizău's answer didn't worked for me)

I contact the seller and he replied with this url included with download links for complete image bundled with drivers:

enter image description here


FYI this is the product i bought from ebay: 3-5-TFT-Raspberry-Pi-2-B-B-Touch-Screen-Display-Monitor-LCD-Case-Heatsink

enter image description here

0

Thanks for your answer. I did it with the drivers and the advice on their Ebay site. You have to modify some parameters if you use more actual drivers (e.g. LCD_show -> LCD_show_v6_1_2 or LCD35_v1 -> LCD35_v).

Installation:

  • Get drivers: wget http://en.kedei.net/raspberry/v6_1/LCD_show_v6_1_2.tar.gz

  • Decompress file: tar -xzvf LCD_show_v6_1_2.tar.gz

  • Jump into the file: cd LCD-show

  • Update system: sudo apt-get update

  • Install driver: sudo ./LCD35_v1

Then, after a few seconds, the system will reboot (just WAIT!)

If you want to use the HDMI, you can use the command: sudo ./LCD_hdmi

Note: You must use the command sudo apt-mark hold raspberrypi-bootloader before you update your system.

Then use the commands:

sudo apt-get update
sudo apt-get upgrade

protected by Community Jul 8 '17 at 16:01

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