root@digo-pc:~# dmesg | grep drm
[   16.738243] [drm] Initialized drm 1.1.0 20060810
[   17.120647] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[   17.120649] [drm] Driver supports precise vblank timestamp query.
[   17.217410] [drm] radeon defaulting to kernel modesetting.
[   17.217415] [drm] radeon kernel modesetting enabled.
[   17.448371] fbcon: inteldrmfb (fb0) is primary device
[   17.449021] fb0: inteldrmfb frame buffer device
[   17.449023] drm: registered panic notifier
[   17.530008] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[   17.534410] [drm] initializing kernel modesetting (RV710 0x1002:0x9555).
[   17.534456] [drm] register mmio base: 0xE8400000
[   17.534459] [drm] register mmio size: 65536
[   32.881380] [drm] Detected VRAM RAM=3584M, BAR=256M
[   32.881384] [drm] RAM width 128bits DDR
[   32.881603] [drm] radeon: 3584M of VRAM memory ready
[   32.881606] [drm] radeon: 512M of GTT memory ready.
[   32.881633] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[   32.881636] [drm] Driver supports precise vblank timestamp query.
[   32.881732] [drm] radeon: irq initialized.
[   32.881735] [drm] GART: num cpu pages 131072, num gpu pages 131072
[   32.882450] [drm] Loading RV710 Microcode
[   33.222474] Modules linked in: snd_hda_codec_idt rfcomm sco bnep l2cap snd_hda_intel(+) snd_hda_codec snd_hwdep arc4 btusb bluetooth iwlagn snd_pcm radeon(+) iwlcore uvcvideo videodev v4l2_compat_ioctl32 snd_seq_midi snd_rawmidi joydev hp_wmi snd_seq_midi_event sparse_keymap snd_seq i915 mac80211 snd_timer snd_seq_device ttm cfg80211 snd psmouse serio_raw intel_ips drm_kms_helper drm rc_rc6_mce soundcore snd_page_alloc i2c_algo_bit ir_lirc_codec lirc_dev ir_sony_decoder ir_jvc_decoder ir_rc6_decoder hp_accel lis3lv02d ir_rc5_decoder input_polldev video ir_nec_decoder ene_ir rc_core lp parport usb_storage uas ahci r8169 libahci
[   33.224164]  [<ffffffffa00dec6e>] drm_get_pci_dev+0x18e/0x300 [drm]
[   33.231013]  [<ffffffffa00df184>] drm_pci_init+0xe4/0xf0 [drm]
[   33.235685]  [<ffffffffa00d6688>] drm_init+0x58/0x70 [drm]