Difference between revisions of "HDMI display does not display after installing FBCP driver"
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| Line 8: | Line 8: | ||
For the following products: | For the following products: | ||
| − | [[ | + | [[MHS-3.5inch RPi Display]] |
| − | [[MHS - 4. | + | [[MHS-4.0inch Display-B]] |
Following the steps of the wiki page to install the driver supporting FPCP, the above display can display normally. | Following the steps of the wiki page to install the driver supporting FPCP, the above display can display normally. | ||
| Line 16: | Line 16: | ||
However, the hdmi-connected monitor displays nothing or is prompted "input not supported", etc | However, the hdmi-connected monitor displays nothing or is prompted "input not supported", etc | ||
| − | ==<font color="blue"> | + | ==<font color="blue">Analysis</font> == |
| − | Since the default output resolution of the driver installed in the above products is 480*320, | + | 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 640*480, | |
| − | + | the HDMI display cannot display normally or even without display. | |
| − | + | ==<font color="blue">Solution </font> == | |
| − | Change the value of 480 320 to the | + | * Open the "config. txt" file in the TF root directory, |
| − | + | * Find the line at the end of the file | |
| − | + | {{code|1= | |
| − | + | hdmi_cvt <font color="red">480 320</font> 60 6 0 0 0 | |
| − | + | }} | |
| − | + | * Change the value of 480*320 to 640*480, 800*480 or the higher resolution (note the space), | |
| − | Save and safely pop up TF, insert raspberry pie and restart. | + | * For example: change to 800*480 resolution |
| + | {{code|1= | ||
| + | hdmi_cvt <font color="red">800 480</font> 60 6 0 0 0 | ||
| + | }} | ||
| + | * Save and safely pop up TF, insert raspberry pie and restart. | ||
Latest revision as of 11:46, 9 July 2019
Phenomenon
For the following products:
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 640*480,
the HDMI display cannot display normally or even without display.
Solution
- Open the "config. txt" file in the TF root directory,
- Find the line at the end of the file
hdmi_cvt 480 320 60 6 0 0 0
- Change the value of 480*320 to 640*480, 800*480 or the higher resolution (note the space),
- For example: change to 800*480 resolution
hdmi_cvt 800 480 60 6 0 0 0
- Save and safely pop up TF, insert raspberry pie and restart.
