$ dmesg | egrep -i 'kms|drm|radeon|atom|ttm' [ 0.000000] Linux version 2.6.32.9-drt100218.k10temp.f71889fg.100223.desktop.kms (dawitbro@desktop) (gcc version 4.4.3 (Debian 4.4.3-2) ) #2 SMP PREEMPT Tue Feb 23 22:27:45 EST 2010 [ 0.418145] [drm] Initialized drm 1.1.0 20060810 [ 0.418190] [drm] radeon defaulting to kernel modesetting. [ 0.418234] [drm] radeon kernel modesetting enabled. [ 0.418309] radeon 0000:01:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 0.418351] radeon 0000:01:00.0: setting latency timer to 64 [ 0.419295] [drm] radeon: Initializing kernel modesetting. [ 0.423298] [drm] register mmio base: 0xFE8E0000 [ 0.423336] [drm] register mmio size: 131072 [ 0.423857] ATOM BIOS: JUNIPER [ 0.423907] [drm] Clocks initialized ! [ 0.423945] [drm] 1 Power State(s) [ 0.423983] [drm] State 0 Default (default) [ 0.424021] [drm] 16 PCIE Lanes [ 0.424059] [drm] 1 Clock Mode(s) [ 0.424097] [drm] 0 engine/memory: 700000/1150000 [ 0.424135] [drm] radeon: power management initialized [ 0.424177] radeon 0000:01:00.0: VRAM: 256M 0x00000000 - 0x0FFFFFFF (256M used) [ 0.424220] radeon 0000:01:00.0: GTT: 512M 0x10000000 - 0x2FFFFFFF [ 0.425260] [drm] Detected VRAM RAM=256M, BAR=256M [ 0.426424] [drm] RAM width 128bits DDR [ 0.426493] [TTM] Zone kernel: Available graphics memory: 4091200 kiB. [ 0.426533] [TTM] Zone dma32: Available graphics memory: 2097152 kiB. [ 0.426579] [drm] radeon: 256M of VRAM memory ready [ 0.426618] [drm] radeon: 512M of GTT memory ready. [ 0.427773] i2c i2c-1: adapter [Radeon internal i2c bit bus DP] registered [ 0.427779] i2c i2c-2: adapter [Radeon i2c DP] registered [ 0.427799] i2c i2c-3: adapter [Radeon internal i2c bit bus HDMI] registered [ 0.427805] i2c i2c-4: adapter [Radeon i2c HDMI] registered [ 0.427822] i2c i2c-5: adapter [Radeon internal i2c bit bus DVI] registered [ 0.427827] i2c i2c-6: adapter [Radeon i2c DVI] registered [ 0.427846] i2c i2c-7: adapter [Radeon internal i2c bit bus DVI] registered [ 0.427852] i2c i2c-8: adapter [Radeon i2c DVI] registered [ 0.427863] [drm] Radeon Display Connectors [ 0.427902] [drm] Connector 0: [ 0.427939] [drm] DisplayPort [ 0.427976] [drm] HPD4 [ 0.428014] [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c [ 0.428056] [drm] Encoders: [ 0.428093] [drm] DFP1: INTERNAL_UNIPHY2 [ 0.428132] [drm] Connector 1: [ 0.428169] [drm] HDMI-A [ 0.428206] [drm] HPD5 [ 0.428246] [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c [ 0.428287] [drm] Encoders: [ 0.428325] [drm] DFP2: INTERNAL_UNIPHY2 [ 0.428363] [drm] Connector 2: [ 0.428400] [drm] DVI-I [ 0.428438] [drm] HPD1 [ 0.428475] [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c [ 0.428517] [drm] Encoders: [ 0.429159] [drm] DFP3: INTERNAL_UNIPHY1 [ 0.429197] [drm] CRT2: INTERNAL_KLDSCP_DAC2 [ 0.429237] [drm] Connector 3: [ 0.429275] [drm] DVI-I [ 0.429312] [drm] HPD6 [ 0.429349] [drm] DDC: 0x6450 0x6450 0x6454 0x6454 0x6458 0x6458 0x645c 0x645c [ 0.429391] [drm] Encoders: [ 0.429428] [drm] DFP4: INTERNAL_UNIPHY [ 0.429466] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 0.578095] [drm] fb mappable at 0xD0040000 [ 0.578134] [drm] vram apper at 0xD0000000 [ 0.578172] [drm] size 9216000 [ 0.578210] [drm] fb depth is 24 [ 0.578249] [drm] pitch is 7680 [ 0.597389] fb0: radeondrmfb frame buffer device [ 0.597426] [drm] Initialized radeon 2.0.0 20080528 for 0000:01:00.0 on minor 0 [ 1.090147] i2c-dev: adapter [Radeon internal i2c bit bus DP] registered as minor 1 [ 1.090155] i2c-dev: adapter [Radeon i2c DP] registered as minor 2 [ 1.090163] i2c-dev: adapter [Radeon internal i2c bit bus HDMI] registered as minor 3 [ 1.090171] i2c-dev: adapter [Radeon i2c HDMI] registered as minor 4 [ 1.090179] i2c-dev: adapter [Radeon internal i2c bit bus DVI] registered as minor 5 [ 1.090188] i2c-dev: adapter [Radeon i2c DVI] registered as minor 6 [ 1.090196] i2c-dev: adapter [Radeon internal i2c bit bus DVI] registered as minor 7 [ 1.090204] i2c-dev: adapter [Radeon i2c DVI] registered as minor 8