Comments (3)
I don't know if the X server can mix and match DRM and FB devices and I haven't looked much at the userspace side of graphics myself.
A search turned up this recent post:
Dual display support with legacy driver (HDMI + SPI-LCD on RPi4)
https://forums.raspberrypi.com/viewtopic.php?t=306624
There's a a new DRM driver coming up that should work with your display, but it's not in mainline yet. It will be backported to rpi-linux-5.15 at some point.
https://github.com/notro/panel-mipi-dbi/wiki
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@notro thanks for the reply. Based on the Raspberry Pi forum topic you found, I think I should be able to pull this off.
The new DRM drivers look really great, but I'm stuck with 4.4 kernel, so most probably can't use them.
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This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.
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