I can confirm the bug on my i7-3770k (onboard HD 4000). If I revert the commit that Carsten linked in comment #4, I get no such error in dmesg. Section of dmsg under 3.11.2 without revert: [ 0.738132] fbcon: inteldrmfb (fb0) is primary device [ 0.939391] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting [ 1.022675] [drm:intel_pipe_config_compare] *ERROR* mismatch in pch_pfit.size (expected 0, found 167773600) [ 1.022675] ------------[ cut here ]------------ [ 1.022686] WARNING: CPU: 0 PID: 78 at drivers/gpu/drm/i915/intel_display.c:8299 check_crtc_state+0x59f/0x9d0 [i915]() [ 1.022687] pipe state doesn't match! [ 1.022689] Modules linked in: i915(+) video button i2c_algo_bit intel_agp intel_gtt drm_kms_helper drm i2c_core [ 1.022690] CPU: 0 PID: 78 Comm: modprobe Not tainted 3.11.2-1-custom #1 [ 1.022691] Hardware name: System manufacturer System Product Name/P8Z77-V PRO, BIOS 2104 08/13/2013 [ 1.022693] 0000000000000009 ffff880408647180 ffffffff8147721d ffff8804086471c8 [ 1.022694] ffff8804086471b8 ffffffff81048efd ffff880409a1b6d8 ffff8804085d6800 [ 1.022695] 0000000000000001 ffff8804085d6ca0 ffff880409a1b000 ffff880408647218 [ 1.022696] Call Trace: [ 1.022699] [] dump_stack+0x54/0x8d [ 1.022701] [] warn_slowpath_common+0x7d/0xa0 [ 1.022702] [] warn_slowpath_fmt+0x4c/0x50 [ 1.022711] [] check_crtc_state+0x59f/0x9d0 [i915] [ 1.022720] [] intel_modeset_check_state+0x2c3/0x770 [i915] [ 1.022727] [] intel_set_mode+0x25/0x30 [i915] [ 1.022733] [] intel_crtc_set_config+0x762/0x920 [i915] [ 1.022737] [] drm_mode_set_config_internal+0x5d/0xe0 [drm] [ 1.022739] [] drm_fb_helper_set_par+0x71/0xf0 [drm_kms_helper] [ 1.022741] [] fbcon_init+0x504/0x580 [ 1.022743] [] visual_init+0xbc/0x120 [ 1.022744] [] do_bind_con_driver+0x163/0x380 [ 1.022745] [] do_take_over_console+0x114/0x1c0 [ 1.022747] [] do_fbcon_takeover+0x63/0xd0 [ 1.022748] [] fbcon_event_notify+0x605/0x720 [ 1.022750] [] notifier_call_chain+0x4c/0x70 [ 1.022751] [] __blocking_notifier_call_chain+0x4d/0x70 [ 1.022752] [] blocking_notifier_call_chain+0x16/0x20 [ 1.022754] [] fb_notifier_call_chain+0x1b/0x20 [ 1.022755] [] register_framebuffer+0x1dd/0x310 [ 1.022757] [] drm_fb_helper_initial_config+0x32f/0x510 [drm_kms_helper] [ 1.022760] [] ? drm_mode_config_reset+0xcf/0xf0 [drm] [ 1.022762] [] ? kmem_cache_alloc_trace+0x225/0x270 [ 1.022763] [] ? drm_fb_helper_init+0x179/0x210 [drm_kms_helper] [ 1.022773] [] intel_fbdev_initial_config+0x21/0x30 [i915] [ 1.022781] [] i915_driver_load+0xdc1/0xdf0 [i915] [ 1.022785] [] drm_get_pci_dev+0x166/0x280 [drm] [ 1.022792] [] i915_pci_probe+0x2c/0x70 [i915] [ 1.022794] [] local_pci_probe+0x3e/0x70 [ 1.022796] [] pci_device_probe+0x111/0x120 [ 1.022798] [] driver_probe_device+0x87/0x3a0 [ 1.022799] [] __driver_attach+0x93/0xa0 [ 1.022800] [] ? __device_attach+0x40/0x40 [ 1.022802] [] bus_for_each_dev+0x63/0xa0 [ 1.022803] [] driver_attach+0x1e/0x20 [ 1.022804] [] bus_add_driver+0x1e8/0x2a0 [ 1.022805] [] ? 0xffffffffa0129fff [ 1.022806] [] driver_register+0x74/0x150 [ 1.022807] [] ? 0xffffffffa0129fff [ 1.022808] [] __pci_register_driver+0x4d/0x50 [ 1.022811] [] drm_pci_init+0x11a/0x130 [drm] [ 1.022812] [] ? mutex_unlock+0xe/0x10 [ 1.022813] [] ? 0xffffffffa0129fff [ 1.022820] [] i915_init+0x66/0x68 [i915] [ 1.022821] [] do_one_initcall+0xf2/0x1a0 [ 1.022822] [] ? __blocking_notifier_call_chain+0x58/0x70 [ 1.022824] [] load_module+0x1b17/0x25b0 [ 1.022825] [] ? store_uevent+0x40/0x40 [ 1.022827] [] SyS_finit_module+0x86/0xb0 [ 1.022829] [] system_call_fastpath+0x1a/0x1f [ 1.022829] ---[ end trace 90f11c6df3f24fdf ]---