Pi4 4" touch screen doesn't turn off

[xk42]

I bought a Smraza 4 inch lcd display from amazon. The screen doesn't go completely off when it is powered down or in idle. It shows a "No Signal" blue screen.

I tried "vcgencmd display_power 0" but it just goes very dim and still shows the no signal blue screen.


Attached my config.txt

Code: Select all

[all]
#dtoverlay=vc4-fkms-v3d
hdmi_force_hotplug=1
hdmi_force_edid_audio=1
dtparam=i2c_arm=on
dtparam=spi=on
enable_uart=1
display_rotate=3
max_usb_current=1
config_hdmi_boost=7
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_drive=2
hdmi_cvt 480 800 60 6 0 0 0
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900
hdmi_blanking=1