1

I bought a touchscreen and installed the drivers for it, but now my hdmi doesn't work. I am currently running Raspbian on Raspberry Pi 4 model B.And I have a 3.5 inch tft screen.I do not no what driver I have. I got it through my terminal from the github. They gave me a command for the terminal to enable the hdmi but it doesen't work. They said that once I installed the driver it would disable my hdmi, but they said you could enable it by executing this command: sudo ./LCD-hdmi. The exact name of my screen is: MHS-3.5 inch Display. Can you guys help me?

Ingo
  • 42,107
  • 20
  • 85
  • 197
Julian
  • 21
  • 1
  • 3
  • Hi @Julian, If you are installing an ILI9341 type touch screen driver, the following post might help: LCD TFT screen 2.8" ILI9341 SPI Connect： https://raspberrypi.stackexchange.com/questions/98549/lcd-tft-screen-2-8-ili9341-spi-connect/98557#98557 – tlfong01 Aug 09 '19 at 01:16
  • 1
    What touchscreen? What drivers? What Raspberry Pi? What operating system? Please edit your question and add missing information to it. – Ingo Aug 09 '19 at 10:28
  • @Julian See the answer from Ravi Mali in the following post. It implies that the sudo ./LCD-hdmi command must be executed from the same directory where you executed the MHS35-show command. You were not specific about how the sudo ./LCD-hdmi command "doesen't work". https://raspberrypi.stackexchange.com/questions/93023/change-back-from-lcd-driver The docs here show you doing a "cd LCD-show" before MHS-35-show. Make sure you are in the directory where the LCD-show executable resides. http://www.lcdwiki.com/MHS-3.5inch_RPi_Display#How_to_use_in_the_Raspberry.2FUbuntu_Mate.2FKali.2FRetropie_system – MartinMarty Aug 10 '19 at 03:19

1 Answers1

1

The command sudo ./LCD-hdmi will run a script that uncomments the line hdmi_force_hotplug=1 in Raspberry PI Config File which will force raspbian to use HDMI instead of the touchscreen. If you do this, you will have to comment the line hdmi_force_hotplug=1 everytime you want to use your touchscreen instead of the HDMI. I hope this helps.

SK73106
  • 611
  • 5
  • 5