# modprobe radeon
FATAL: Error inserting radeon (/lib/modules/2.6.27-std-def-alt3/kernel/drivers/gpu/drm/radeon/radeon.ko): Unknown symbol in module, or unknown parameter (see dmesg)

radeon: Unknown symbol drm_open
radeon: Unknown symbol drm_fasync
radeon: Unknown symbol drm_poll
radeon: Unknown symbol drm_get_resource_len
radeon: Unknown symbol drm_core_get_reg_ofs
radeon: Unknown symbol drm_irq_uninstall
radeon: Unknown symbol drm_ioctl
radeon: Unknown symbol drm_exit
radeon: Unknown symbol drm_getsarea
radeon: Unknown symbol drm_debug
radeon: Unknown symbol drm_core_ioremapfree
radeon: Unknown symbol drm_core_get_map_ofs
radeon: Unknown symbol drm_init
radeon: Unknown symbol drm_addmap
radeon: Unknown symbol drm_get_resource_start
radeon: Unknown symbol drm_vbl_send_signals
radeon: Unknown symbol drm_ati_pcigart_init
radeon: Unknown symbol drm_core_ioremap
radeon: Unknown symbol drm_core_ioremap_wc
radeon: Unknown symbol drm_mmap
radeon: Unknown symbol drm_order
radeon: Unknown symbol drm_ati_pcigart_cleanup
radeon: Unknown symbol drm_core_reclaim_buffers
radeon: Unknown symbol drm_release