First of all, great job that you're doing on the radeonhd driver. It's great to have free drivers for ATI cards again. I have got a X1400 on a ThinkPad R60 and I'm using the latest git version of radeonhd. If I don't connect anything to VGA-out, X exits immediately. But If I do connect a monitor to VGA-out, the LCD becomes blank and I get the correct output on the monitor. conntest with no monitor attached: # ./rhd_conntest 1:0.0 Checking connectors on 0x7145, 0x17AA, 0x2006 (@01:00:00): Load Detection: RHD_OUTPUT_NONE HotPlug: RHD_HPD_NONE DDC: RHD_DDC_2 LVDS Info: 18bits, dual link, LDI Panel found. Power Timing: 0x465, 0x00F, 0x10, 0x64, 0x2A8 Macro: 0x0B520407, Clock Pattern: 0x0063 conntest with monitor attached: # ./rhd_conntest 1:0.0 Checking connectors on 0x7145, 0x17AA, 0x2006 (@01:00:00): Load Detection: RHD_OUTPUT_DACA HotPlug: RHD_HPD_NONE DDC: RHD_DDC_2 LVDS Info: 18bits, dual link, LDI Panel found. Power Timing: 0x465, 0x00F, 0x10, 0x64, 0x2A8 Macro: 0x0B520407, Clock Pattern: 0x0063 # lspci -vs 1:0.0 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility X1400 (prog-if 00 [VGA]) Subsystem: Lenovo Unknown device 2006 Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at d8000000 (32-bit, prefetchable) [size=128M] I/O ports at 2000 [size=256] Memory at ee000000 (32-bit, non-prefetchable) [size=64K] [virtual] Expansion ROM at ee020000 [disabled] [size=128K] Capabilities: [50] Power Management version 2 Capabilities: [58] Express Legacy Endpoint IRQ 0 Capabilities: [80] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- I have attached my xorg.conf and the logs I got. Gabriel.