Raspberry pi 4 KDE plasma 20.8 Boots up but no GUI only a mouse cursor

Image :Manjaro-ARM-kde-plasma-rpi4-20.08.img
Board: Pi4
Monitor : 1920 x 1080 LG

The board seemed to boot up but after the boot process was getting a blank screen with a mouse cursor

i did add the following to /boot/config.txt

hdmi_force_edid_3d:1=1
hdmi_mode:1=16
hdmi_group:1=1
hdmi_force_mode:1=1
hdmi_ignore_edid:1=0xa5000080

But would not work
any help for the above is welcome