Description of problem:
Happened at boot time

Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 1 PID: 275 at drivers/gpu/drm/i915/intel_display.c:901 intel_wait_for_vblank+0x225/0x230 [i915]()
vblank wait on pipe A timed out
Modules linked in: i915 r8169 i2c_algo_bit drm_kms_helper drm mii video ums_realtek uas usb_storage hid_logitech_dj
CPU: 1 PID: 275 Comm: plymouthd Not tainted 3.18.8-201.fc21.x86_64 #1
Hardware name: TOSHIBA Satellite Pro L300/Portable PC, BIOS 2.20 12/09/2009
 0000000000000000 00000000690cdc39 ffff880138f93838 ffffffff8175b3fc
 0000000000000000 ffff880138f93890 ffff880138f93878 ffffffff81098e91
 0000000000000000 ffff8800361c0000 0000000000070040 000000000000000c
Call Trace:
 [<ffffffff8175b3fc>] dump_stack+0x46/0x58
 [<ffffffff81098e91>] warn_slowpath_common+0x81/0xa0
 [<ffffffff81098f05>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa01205f5>] intel_wait_for_vblank+0x225/0x230 [i915]
 [<ffffffffa012ac42>] i9xx_crtc_disable+0x92/0x6f0 [i915]
 [<ffffffffa0124ed0>] __intel_set_mode+0x2d0/0x16f0 [i915]
 [<ffffffff810fdd72>] ? del_timer_sync+0x52/0x60
 [<ffffffff81760ad4>] ? schedule_timeout+0x154/0x280
 [<ffffffffa012e7d6>] intel_set_mode+0x16/0x30 [i915]
 [<ffffffffa012ee88>] intel_release_load_detect_pipe+0x98/0xf0 [i915]
 [<ffffffffa015e961>] intel_tv_detect+0x341/0x5e0 [i915]
 [<ffffffffa0099be3>] drm_helper_probe_single_connector_modes_merge_bits+0x303/0x460 [drm_kms_helper]
 [<ffffffffa0099d53>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper]
 [<ffffffffa005ed6f>] drm_mode_getconnector+0x42f/0x4a0 [drm]
 [<ffffffffa0050a9f>] drm_ioctl+0x1df/0x680 [drm]
 [<ffffffff810d3949>] ? pick_next_task_fair+0x6b9/0x8b0
 [<ffffffff81228150>] do_vfs_ioctl+0x2d0/0x4b0
 [<ffffffff8175d304>] ? __schedule+0x2e4/0x890
 [<ffffffff812283b1>] SyS_ioctl+0x81/0xa0
 [<ffffffff81761e29>] system_call_fastpath+0x12/0x17