My RPi-4B console does not take up the full monitor screen when booting into the linux-raspberrypi4 kernel.
I've tried overscan settings in the /boot/config.txt to see if they would help, but they haven't.
I've tried fbset:
$this->bbcode_second_pass_code('', 'sudo fbset -a -g 1920 1080 1920 1080 16')
When I boot my RPi-4B with the Raspberry Pi OS SD card, both the console and desktop fill the screen.
Likewise, when I boot into my RPi-4B with the "standard" AArch64 kernel, both the console and the desktop environment take up the full screen.
I'm guessing the problem has to do with one of the /boot/cmdline.txt console entries, which I have not changed. I tried to get smart on that today, but I apparently failed since I have not figured out how to fix this.
Note that I'm currently using the "vc4-fkms-v3d" overlay, but I did boot with the "vc4-kms-v3c" overlay as well, and it doesn't fix this problem.
Thank you in advance for any ideas you can provide to help..
sb