Dual monitor on RPi4
by louigi600 from LinuxQuestions.org on (#5EW91)
Has anyone had any luck with using 2 displays connected to the RPi4 ?
I can get one display to work in whatever port I use but if I try both at the same time the second display just shows the color boot splash.
On the RPiOS it seems to work fine.
This in the config.txt got the text console to appear on both displays:
Code:[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2But if I start X I don't get the norman window manager appearance, instead just the application bar and the rest black.
xrandr seems to have an issue and is not showing the second display anyway so I don't know how to tell it to use the second display as an extension rather den duplicating them.
I can get one display to work in whatever port I use but if I try both at the same time the second display just shows the color boot splash.
On the RPiOS it seems to work fine.
This in the config.txt got the text console to appear on both displays:
Code:[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2But if I start X I don't get the norman window manager appearance, instead just the application bar and the rest black.
xrandr seems to have an issue and is not showing the second display anyway so I don't know how to tell it to use the second display as an extension rather den duplicating them.