Hi, This is definitely not a xorg-driver bug. It is a kernel bug. I suffer from the same problem (Dell Latitude D505, Intel 855GM) and only disabling all display-modes (Ext. VGA, HDMI, TV-Out, etc.) except the internal display (LVDS) in the kernel source file "drivers/gpu/drm/i915/intel_display.c" in lines 69852-70373 solves the problem :
list_for_each_entry(connector, &mode_config->connector_list, head) { struct intel_output *intel_output = to_intel_output(connector); if (!connector->encoder || connector->encoder->crtc != crtc) continue; switch (intel_output->type) { /* case INTEL_OUTPUT_LVDS: */ -> Always enable LVDS is_lvds = true; /* break; case INTEL_OUTPUT_SDVO: case INTEL_OUTPUT_HDMI: is_sdvo = true; if (intel_output->needs_tv_clock) is_tv = true; break; case INTEL_OUTPUT_DVO: is_dvo = true; break; case INTEL_OUTPUT_TVOUT: is_tv = true; break; case INTEL_OUTPUT_ANALOG: is_crt = true; break; case INTEL_OUTPUT_DISPLAYPORT: is_dp = true; break; case INTEL_OUTPUT_EDP: is_edp = true; break;*/ } num_outputs++; } It seems that the kernel does not correcty handle the display pipes of the intel chipset and always enables the VGA-port as first display and oversees the internal display. I tested the kernel with two external display (VGA and DVI-port) and both display work perfectly. Only the internal display isn't initialized correctly. -- [i855] Karmic Koala Alpha 3 live CD give black screen https://bugs.launchpad.net/bugs/410455 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs