Toggle menu
Toggle personal menu
Not logged in
Your IP address will be publicly visible if you make any edits.

HDMI display does not display after installing FBCP driver

From LCD wiki

语言选择

Languages

➤中文
➤EN


Phenomenon

For the following products:

MHS-3.5inch RPi Display

MHS-4.0inch Display-B

Following the steps of the wiki page to install the driver supporting FPCP, the above display can display normally.

However, the hdmi-connected monitor displays nothing or is prompted "input not supported", etc

Analysis

Since the default output resolution of the driver installed in the above products is 480*320,

but many traditional HDMI displays do not support HDMI input signal lower than 800*600,

the HDMI display cannot display normally or even without display.

Solution

  • Open the "config. txt" file in the TF root directory,
  • Find "hdmi_cvt 480 320 60 60 0 0 0" lines At the end of the file,
  • Change the value of 480 320 to the corresponding value of resolution above 800*600 (note the space),
  • For example: change to 1024*600 resolution
  • hdmi_cvt 1024 600 600 60 600 00
  • Save and safely pop up TF, insert raspberry pie and restart.