[ 16.826586] [ 16.883234] [ 16.939940] [ 16.996759] [ 16.998273] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 27.099177] [ 27.155957] [ 27.212751] [ 27.269446] [ 27.270988] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 37.372515] [ 37.433095] [ 37.493656] [ 37.554186] [ 37.557637] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 47.644506] [ 47.705103] [ 47.765701] [ 47.826235] [ 47.829706] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 57.916519] [ 57.977193] [ 58.037971] [ 58.098580] [ 58.102132] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. ------------------------------------------------------------------- on tty1 it's together with a block of zeroes: [drm:drm_edid_block_valid] *ERROR* Raw EDID: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ------------------------------------------------------------------- well, if I set drm_kms_helper.poll=0, I get this: [ 5.773225] [drm] Initialized drm 1.1.0 20060810 [ 5.781175] usb 2-2: FTDI USB Serial Device converter now attached to ttyUSB0 [ 5.789084] usbcore: registered new interface driver ftdi_sio [ 5.794955] ftdi_sio: v1.6.0:USB FTDI Serial Converters Driver [ 5.855956] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 5.888239] [drm] radeon defaulting to kernel modesetting. [ 5.893820] [drm] radeon kernel modesetting enabled. [ 5.898992] radeon 0000:01:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 5.911802] [drm] initializing kernel modesetting (RS690 0x1002:0x791E). [ 5.918614] [drm] register mmio base: 0xFDFF0000 [ 5.923317] [drm] register mmio size: 65536 [ 5.933430] ATOM BIOS: ATI [ 5.937302] radeon 0000:01:05.0: VRAM: 32M 0x00000000DE000000 - 0x00000000DFFFFFFF (32M used) [ 5.946017] radeon 0000:01:05.0: GTT: 512M 0x00000000A0000000 - 0x00000000BFFFFFFF [ 5.953737] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 5.960466] [drm] Driver supports precise vblank timestamp query. [ 5.967593] [drm] radeon: irq initialized. [ 5.971935] [drm] Detected VRAM RAM=32M, BAR=32M [ 5.976677] [drm] RAM width 128bits DDR [ 5.980671] [TTM] Zone kernel: Available graphics memory: 4082542 kiB. [ 5.987410] [TTM] Zone dma32: Available graphics memory: 2097152 kiB. [ 5.994142] [TTM] Initializing pool allocator. [ 5.998683] [drm] radeon: 32M of VRAM memory ready [ 6.003547] [drm] radeon: 512M of GTT memory ready. [ 6.008540] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 6.018636] [drm] radeon: 1 quad pipes, 1 z pipes initialized. [ 6.031983] radeon 0000:01:05.0: WB enabled [ 6.036299] [drm] Loading RS690/RS740 Microcode [ 6.068523] [drm] radeon: cp finalized [ 6.073587] [drm] Radeon Display Connectors [ 6.077853] [drm] Connector 0: [ 6.080962] [drm] VGA [ 6.083460] [drm] DDC: 0x7e50 0x7e40 0x7e54 0x7e44 0x7e58 0x7e48 0x7e5c 0x7e4c [ 6.090985] [drm] Encoders: [ 6.094016] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 6.098702] [drm] Connector 1: [ 6.101822] [drm] S-video [ 6.104690] [drm] Encoders: [ 6.107742] [drm] TV1: INTERNAL_KLDSCP_DAC1 [ 6.112355] [drm] Connector 2: [ 6.115474] [drm] HDMI-A [ 6.118228] [drm] HPD2 [ 6.120821] [drm] DDC: 0x7e40 0x7e60 0x7e44 0x7e64 0x7e48 0x7e68 0x7e4c 0x7e6c [ 6.128331] [drm] Encoders: [ 6.131378] [drm] DFP2: INTERNAL_DDI [ 6.135337] [drm] Connector 3: [ 6.138464] [drm] DVI-D [ 6.141154] [drm] DDC: 0x7e40 0x7e50 0x7e44 0x7e54 0x7e48 0x7e58 0x7e4c 0x7e5c [ 6.148679] [drm] Encoders: [ 6.151693] [drm] DFP3: INTERNAL_LVTM1 [ 6.263167] [ 6.319438] [ 6.375703] [ 6.431939] [ 6.433489] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 6.626021] [ 6.662658] input: PS/2 Logitech Mouse as /devices/platform/i8042/serio1/input/input4 [ 6.683795] [ 6.740054] [ 6.796295] [ 6.797862] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 6.816603] [drm] fb mappable at 0xFA040000 [ 6.820854] [drm] vram apper at 0xFA000000 [ 6.825042] [drm] size 2150400 [ 6.828192] [drm] fb depth is 8 [ 6.831392] [drm] pitch is 1792 [ 6.842864] Console: switching to colour frame buffer device 200x75 [ 6.851924] fb0: radeondrmfb frame buffer device [ 6.856584] drm: registered panic notifier [ 6.860728] [drm] Initialized radeon 2.8.0 20080528 for 0000:01:05.0 on minor 0 Because I have no HDMI connector but instead have a display port connector it seems that sth. is detected wrong and maybe mixed up.