I'm posting you this because of the line below <br>[ 20.547601] [drm] DDC: no ddc bus - possible BIOS bug - please report to <a href="mailto:xorg-driver-ati@lists.x.org">xorg-driver-ati@lists.x.org</a><br>
<br>I'm using an HP EliteBook 8740w, with Ubuntu GNU/Linux 10.10.<br><br>$ dmesg | grep drm<br>[ 20.360825] [drm] Initialized drm 1.1.0 20060810<br>[ 20.464324] [drm] radeon defaulting to kernel modesetting.<br>[ 20.464327] [drm] radeon kernel modesetting enabled.<br>
[ 20.465569] [drm] initializing kernel modesetting (JUNIPER 0x1002:0x68A0).<br>[ 20.465710] [drm] register mmio base: 0xD4400000<br>[ 20.465712] [drm] register mmio size: 131072<br>[ 20.465871] [drm] Clocks initialized !<br>
[ 20.466873] [drm] Detected VRAM RAM=1024M, BAR=256M<br>[ 20.466877] [drm] RAM width 128bits DDR<br>[ 20.467131] [drm] radeon: 256M of VRAM memory ready<br>[ 20.467133] [drm] radeon: 512M of GTT memory ready.<br>
[ 20.467250] [drm] radeon: irq initialized.<br>
[ 20.467253] [drm] GART: num cpu pages 131072, num gpu pages 131072<br>[ 20.468063] [drm] Loading JUNIPER Microcode<br>[ 20.544690] [drm] ring test succeeded in 1 usecs<br>[ 20.544890] [drm] radeon: ib pool ready.<br>
[ 20.544963] [drm] ib test succeeded in 0 usecs<br>[ 20.547558] [drm] Radeon Display Connectors<br>[ 20.547561] [drm] Connector 0:<br>[ 20.547562] [drm] LVDS<br>[ 20.547565] [drm] DDC: 0x6470 0x6470 0x6474 0x6474 0x6478 0x6478 0x647c 0x647c<br>
[ 20.547567] [drm] Encoders:<br>[ 20.547569] [drm] LCD1: INTERNAL_UNIPHY<br>[ 20.547570] [drm] Connector 1:<br>[ 20.547571] [drm] DisplayPort<br>[ 20.547573] [drm] HPD1<br>[ 20.547575] [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c<br>
[ 20.547576] [drm] Encoders:<br>[ 20.547578] [drm] DFP1: INTERNAL_UNIPHY1<br>[ 20.547579] [drm] Connector 2:<br>[ 20.547580] [drm] DisplayPort<br>[ 20.547582] [drm] HPD2<br>[ 20.547584] [drm] DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c 0x644c<br>
[ 20.547586] [drm] Encoders:<br>[ 20.547587] [drm] DFP2: INTERNAL_UNIPHY1<br>[ 20.547589] [drm] Connector 3:<br>[ 20.547590] [drm] DisplayPort<br>[ 20.547591] [drm] HPD3<br>[ 20.547594] [drm] DDC: 0x6450 0x6450 0x6454 0x6454 0x6458 0x6458 0x645c 0x645c<br>
[ 20.547596] [drm] Encoders:<br>[ 20.547597] [drm] DFP3: INTERNAL_UNIPHY2<br>[ 20.547599] [drm] Connector 4:<br>[ 20.547600] [drm] VGA<br>[ 20.547601] [drm] DDC: no ddc bus - possible BIOS bug - please report to <a href="mailto:xorg-driver-ati@lists.x.org">xorg-driver-ati@lists.x.org</a><br>
[ 20.547603] [drm] Encoders:<br>[ 20.547605] [drm] CRT1: INTERNAL_KLDSCP_DAC1<br>[ 20.858337] [drm] Internal thermal controller with fan control<br>[ 20.858358] [drm] radeon: power management initialized<br>
[ 20.937656] [drm] fb mappable at 0xC0140000<br>[ 20.937658] [drm] vram apper at 0xC0000000<br>[ 20.937660] [drm] size 7258112<br>[ 20.937662] [drm] fb depth is 24<br>[ 20.937663] [drm] pitch is 6912<br>[ 21.914666] fb0: radeondrmfb frame buffer device<br>
[ 21.914667] drm: registered panic notifier<br>[ 21.915291] [drm] Initialized radeon 2.5.0 20080528 for 0000:01:00.0 on minor 0<br><br>