by miloc » Sat May 30, 2020 7:43 am
Hi,
I am experiencing the same issue. With the default configuration I got rainbow screen over the second hdmi output, then with this /boot/config.txt
$this->bbcode_second_pass_code('', '# See /boot/overlays/README for all available options
gpu_mem=64
initramfs initramfs-linux.img followkernel
# uncomment to force a console size. By default it will be display's size minus
# overscan.
framebuffer_width=1920
framebuffer_height=1080
disable_overscan=1
dtoverlay=vc4-kms-v3d-pi4
')
I get mirror screens.
This is my xrandr output.
$this->bbcode_second_pass_code('', '$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 0.00* ')
Any help would be appreciated.