Additional info:
reporter:       libreport-2.1.9
WARNING: CPU: 1 PID: 133 at drivers/gpu/drm/i915/intel_display.c:822 intel_wait_for_pipe_off+0xfb/0x1c0 [i915]()
pipe_off wait timed out
Modules linked in: btrfs libcrc32c xor zlib_deflate raid6_pq i915(+) video i2c_algo_bit drm_kms_helper drm i2c_core
CPU: 1 PID: 133 Comm: systemd-udevd Not tainted 3.11.8-300.fc20.x86_64 #1
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z68M-ITX/HT, BIOS P1.20 08/16/2011
 0000000000000009 ffff880231c752b8 ffffffff8164374b ffff880231c75300
 ffff880231c752f0 ffffffff8106715d 0000000000070008 ffff880232224000
 00000000fffb7d47 ffff880231c75fd8 ffff8802326f0c70 ffff880231c75350
Call Trace:
 [<ffffffff8164374b>] dump_stack+0x45/0x56
 [<ffffffff8106715d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff810671cc>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffffa0078e16>] ? i915_read32+0x66/0x140 [i915]
 [<ffffffffa00a344b>] intel_wait_for_pipe_off+0xfb/0x1c0 [i915]
 [<ffffffffa00a359d>] intel_disable_pipe+0x8d/0xa0 [i915]
 [<ffffffffa00a5b06>] ironlake_crtc_disable+0xd6/0x8c0 [i915]
 [<ffffffffa00aa450>] __intel_set_mode+0x310/0x12e0 [i915]
 [<ffffffffa00ad4b6>] intel_set_mode+0x16/0x30 [i915]
 [<ffffffffa00add12>] intel_crtc_set_config+0x742/0x920 [i915]
 [<ffffffffa0020a4d>] drm_mode_set_config_internal+0x5d/0xe0 [drm]
 [<ffffffffa006c641>] drm_fb_helper_set_par+0x71/0xf0 [drm_kms_helper]
 [<ffffffff81353184>] fbcon_init+0x504/0x580
 [<ffffffff813c25cc>] visual_init+0xbc/0x120
 [<ffffffff813c4d83>] do_bind_con_driver+0x163/0x330
 [<ffffffff813c5534>] do_take_over_console+0x114/0x1c0
 [<ffffffff8134e9d3>] do_fbcon_takeover+0x63/0xd0
 [<ffffffff81353ced>] fbcon_event_notify+0x60d/0x720
 [<ffffffff8164e26c>] notifier_call_chain+0x4c/0x70
 [<ffffffff8108df1d>] __blocking_notifier_call_chain+0x4d/0x70
 [<ffffffff8108df56>] blocking_notifier_call_chain+0x16/0x20
 [<ffffffff8134573b>] fb_notifier_call_chain+0x1b/0x20
 [<ffffffff8134770d>] register_framebuffer+0x1dd/0x310
 [<ffffffffa006c2ef>] drm_fb_helper_initial_config+0x32f/0x500 [drm_kms_helper]
 [<ffffffffa001f51f>] ? drm_mode_config_reset+0xcf/0xf0 [drm]
 [<ffffffffa006b77e>] ? drm_fb_helper_init+0xfe/0x200 [drm_kms_helper]
 [<ffffffffa00ce881>] intel_fbdev_initial_config+0x21/0x30 [i915]
 [<ffffffffa007d301>] i915_driver_load+0xdc1/0xdf0 [i915]
 [<ffffffffa001c516>] drm_get_pci_dev+0x166/0x280 [drm]
 [<ffffffffa007871c>] i915_pci_probe+0x2c/0x70 [i915]
 [<ffffffff8132a51e>] local_pci_probe+0x3e/0x70
 [<ffffffff8132b801>] pci_device_probe+0x121/0x130
 [<ffffffff813ed6a7>] driver_probe_device+0x87/0x390
 [<ffffffff813eda83>] __driver_attach+0x93/0xa0
 [<ffffffff813ed9f0>] ? __device_attach+0x40/0x40
 [<ffffffff813eb5e3>] bus_for_each_dev+0x63/0xa0
 [<ffffffff813ed0fe>] driver_attach+0x1e/0x20
 [<ffffffff813ecc98>] bus_add_driver+0x1e8/0x2a0
 [<ffffffffa011a000>] ? 0xffffffffa0119fff
 [<ffffffff813ee0c4>] driver_register+0x74/0x150
 [<ffffffffa011a000>] ? 0xffffffffa0119fff
 [<ffffffff8132a3ab>] __pci_register_driver+0x4b/0x50
 [<ffffffffa001c74a>] drm_pci_init+0x11a/0x130 [drm]
 [<ffffffffa011a000>] ? 0xffffffffa0119fff
 [<ffffffffa011a066>] i915_init+0x66/0x68 [i915]
 [<ffffffff810020fa>] do_one_initcall+0xfa/0x1b0
 [<ffffffff810524b3>] ? set_memory_nx+0x43/0x50
 [<ffffffff810cc69d>] load_module+0x1bbd/0x2660
 [<ffffffff810c89a0>] ? store_uevent+0x40/0x40
 [<ffffffff810cd2b6>] SyS_finit_module+0x86/0xb0
 [<ffffffff81652959>] system_call_fastpath+0x16/0x1b