Hello, After trying linux-next (next-20150130) on my i915-powered laptop, I failed to get Xorg running (just a white underscore). I bisected it to commit ccfc08655 "drm: tweak getconnector locking". Issuing a Sysrq+T showed that Xorg has the following call-trace: > drm_modeset_lock+0x30/0xf0 [drm] > intel_get_load_detect_pipe+0x8f/0x480 [i915] > intel_crt_get_edid+0x63/0x90 [i915] > intel_crt_detect_ddc+0x51/0xe0 [i915] > intel_crt_detect_ddc+0x51/0xe0 [i915] > intel_crt_detect+0x45e/0x8d0 [i915] > drm_helper_probe_single_connector_modes_merge_bits+0x278/0x410 [drm_kms_helper] > drm_helper_probe_single_connector_modes+0x17/0x20 [drm_kms_helper] > drm_mode_getconnector+0x295/0x330 [drm] > drm_mode_getcrtc+0xd0/0xd0 [drm] > drm_ioctl+0x1ed/0x560 [drm] > drm_mode_getcrtc+0xd0/0xd0 [drm] > drm_getmap+0xc0/0xc0 [drm] In the mentioned commit, drm_modeset_lock() has been moved (too?) up in drm_mode_getconnector() hence connector->funcs->fill_modes() later calls drm_modeset_lock() too. Should I provide more info ? Marc. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel