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capptn avatar image
capptn asked

Venus OS Raspberry 4 - 5" MPI5001, calibration Touchscreen

Hello everybody,

I have already successfully got venus os to run on a Raspberry 4 with the original Raspberry 7 inch display.


But now I want to use a 5 "HDMI display with USB touch.

To be more precise a MPI5001.


I did the following:


config.txt - add this:


framebuffer_width = 800

framebuffer_height = 480


hdmi_force_edid_audio = 1

max_usb_current = 1

hdmi_force_hotplug = 1

config_hdmi_boost = 7

hdmi_group = 2

hdmi_mode = 1

hdmi_mode = 87

hdmi_drive = 1

hdmi_cvt 800 480 60 6 0 0 0


then install tslib:


- first changed /etc/opkg/venus.conf to develop

-than:


opkg update

opkg install qt4-embedded-plugin-mousedriver-tslib

opkg install tslib-calibrate


everything looks fine up to here.


then configured the calibrating files:


TSLIB_FBDEVICE = / dev / fb0

TSLIB_TSDEVICE = / dev / input / touchscreen0

TSLIB_CALIBFILE = / etc / pointercal

TSLIB_CONFFILE = / etc / ts.conf

TSLIB_PLUGINDIR = / usr / lib / ts


and than ts_calibrate


but nothings happend.


what am I doing wrong? Does somebody has any idea?


The touchscreen generally works, I also see a mouse pointer, only the size of the touch area is wrong


Best Regards Fabian

Venus OSRaspberry Pi
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1 Answer
capptn avatar image
capptn answered ·

Hello everybody,


I was able to fix the problem by installing firmware version 2.60 for the Raspberry pi 4.

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federico993 avatar image federico993 commented ·

Hi, are you able to regulate the brightness of the HDMI screen through the Venus software?

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ivanjh avatar image ivanjh commented ·

I've recently tried to use a touch screen that reports as MPI5001 on a Cerbo GX (venus 3.00).

All touches were registering at the bottom right of the screen.

Something about it upsets the standard hid driver but is rectified by the hid-multitouch driver. Unfortunately, hid-multitouch is not included in venus v3.00 einstein (and building/installation is non-trivial).

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