@drock please sir can you share your images with gpu enabled, I am on OrangePi 3b v2.1 as well having same issues
orangepi@orangepi3b:~$ sudo dmesg | grep -i mali
[sudo] password for orangepi:
[ 9.312425] mali fde60000.gpu: Kernel DDK version g18p0-01eac0
[ 9.312464] mali fde60000.gpu: IRQ JOB not found
[ 9.312552] mali fde60000.gpu: IRQ MMU not found
[ 9.312607] mali fde60000.gpu: IRQ GPU not found
[ 9.312658] mali fde60000.gpu: Insufficient register space, will override to the required size
[ 9.312699] mali fde60000.gpu: Register window unavailable
[ 9.312716] mali fde60000.gpu: Failed to map registers
[ 9.312733] mali fde60000.gpu: Register map failed error = -5
[ 9.312749] mali fde60000.gpu: Device initialization failed
[ 9.313151] mali: probe of fde60000.gpu failed with error -5
[ 9.346431] I : [File] : drivers/gpu/arm/mali400/mali/linux/mali_kernel_linux.c; [Line] : 406; [Func] : mali_module_init(); svn_rev_string_from_arm of this mali_ko is '', rk_ko_ver is '5', built at '18:53:42', on 'Aug 2 2024'.
[ 9.347183] Mali:
[ 9.347190] Mali device driver loaded
[ 10.007994] panfrost fde60000.gpu: Looking up mali-supply from device tree