Screen Resolution low on Raspberry Pi 4

I have Ubuntu 20.04 64bit rpi4 8Gb, ubuntu dektop,
2 24" monitor in simple HD
this is my /boot/firmware/usercfg.txt:

dtparam=spi=off
dtoverlay=vc4-fkms-v3d
hdmi_drive:0=1
hdmi_group:0=2
hdmi_mode:0=82
hdmi_force_hotplug=1
hdmi_drive:1=1
hdmi_group:1=2
hdmi_mode:1=82

the :0 and :1 are ti address monitor.

after this the monitor are detected well
The networkManager and wifi make me crazy but this is a different story.