Description of problem:
Happens at boot time

Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 0 PID: 3958 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: bnep bluetooth xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ccm ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw fuse uvcvideo videobuf2_vmalloc videobuf2_core videobuf2_memops v4l2_common videodev media iTCO_wdt iTCO_vendor_support coretemp snd_hda_codec_hdmi snd_hda_codec_realtek arc4 snd_hda_codec_generic ath5k joydev snd_hda_intel snd_hda_controller snd_hda_codec serio_raw i2c_i801 ath mac80211
 snd_hwdep lpc_ich mfd_core toshiba_bluetooth cfg80211 snd_seq toshiba_acpi snd_seq_device sparse_keymap snd_pcm wmi rfkill snd_timer snd soundcore shpchp acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 i2c_algo_bit drm_kms_helper r8169 drm mii video ums_realtek uas usb_storage hid_logitech_dj
CPU: 0 PID: 3958 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 00000000c12a93b2 ffff8800a081f9c8 ffffffff8175b3fc
 0000000000000000 ffff8800a081fa20 ffff8800a081fa08 ffffffff81098e91
 0000000000000000 ffff8800361c0000 0000000000070040 000000000000002e
Call Trace:
 [<ffffffff8175b3fc>] dump_stack+0x46/0x58
 [<ffffffff81098e91>] warn_slowpath_common+0x81/0xa0
 [<ffffffff81098f05>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa01315f5>] intel_wait_for_vblank+0x225/0x230 [i915]
 [<ffffffffa016f85f>] intel_tv_detect+0x23f/0x5e0 [i915]
 [<ffffffff810fc6e0>] ? internal_add_timer+0xb0/0xb0
 [<ffffffffa00c0be3>] drm_helper_probe_single_connector_modes_merge_bits+0x303/0x460 [drm_kms_helper]
 [<ffffffffa00c0d53>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper]
 [<ffffffffa0059d6f>] drm_mode_getconnector+0x42f/0x4a0 [drm]
 [<ffffffffa004ba9f>] drm_ioctl+0x1df/0x680 [drm]
 [<ffffffff81228150>] do_vfs_ioctl+0x2d0/0x4b0
 [<ffffffff812283b1>] SyS_ioctl+0x81/0xa0
 [<ffffffff81761e29>] system_call_fastpath+0x12/0x17