Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 6 PID: 1310 at drivers/gpu/drm/i915/intel_display.c:3473 intel_crtc_wait_for_pending_flips+0x1a6/0x200 [i915]()
Modules linked in: xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 ccm nf_conntrack_netbios_ns nf_conntrack_broadcast 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 arc4 intel_rapl x86_pkg_temp_thermal coretemp ath9k kvm_intel ath9k_common ath9k_hw kvm vfat fat ath mac80211 crct10dif_pclmul crc32_pclmul crc32c_intel asus_nb_wmi asus_wmi iTCO_wdt sparse_keymap iTCO_vendor_support ath3k btusb uvcvideo bluetooth snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi
 ghash_clmulni_intel videobuf2_vmalloc cfg80211 videobuf2_core videobuf2_memops v4l2_common snd_hda_intel videodev snd_hda_controller joydev snd_hda_codec media serio_raw i2c_i801 lpc_ich rtsx_pci_ms snd_hwdep rfkill memstick snd_seq snd_seq_device snd_pcm ie31200_edac snd_timer edac_core snd mei_me mei shpchp soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc nouveau i915 rtsx_pci_sdmmc mmc_core ttm mxm_wmi i2c_algo_bit drm_kms_helper drm r8169 rtsx_pci mfd_core mii wmi video
CPU: 6 PID: 1310 Comm: Xorg.bin Not tainted 3.18.3-201.fc21.x86_64 #1
Hardware name: ASUSTeK COMPUTER INC. G551JM/G551JM, BIOS G551JM.204 10/13/2014
 0000000000000000 00000000d7951d41 ffff88040851fb48 ffffffff8175da66
 0000000000000000 0000000000000000 ffff88040851fb88 ffffffff81099181
 0000000000000000 ffff8804186b79a8 ffff880414ae8430 ffff8804186ba000
Call Trace:
 [<ffffffff8175da66>] dump_stack+0x46/0x58
 [<ffffffff81099181>] warn_slowpath_common+0x81/0xa0
 [<ffffffff8109929a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa018a8c6>] intel_crtc_wait_for_pending_flips+0x1a6/0x200 [i915]
 [<ffffffff810da560>] ? abort_exclusive_wait+0xb0/0xb0
 [<ffffffffa0192333>] intel_crtc_disable_planes+0x33/0x150 [i915]
 [<ffffffffa019333f>] haswell_crtc_disable+0x4f/0x310 [i915]
 [<ffffffffa018c429>] intel_crtc_control+0x59/0x120 [i915]
 [<ffffffffa018c557>] intel_crtc_update_dpms+0x67/0x80 [i915]
 [<ffffffffa0195c11>] intel_connector_dpms+0x61/0x70 [i915]
 [<ffffffffa0066809>] drm_mode_obj_set_property_ioctl+0x369/0x370 [drm]
 [<ffffffffa006684f>] drm_mode_connector_property_set_ioctl+0x3f/0x60 [drm]
 [<ffffffffa0056aaf>] drm_ioctl+0x1df/0x680 [drm]
 [<ffffffff8140264e>] ? brightness_store+0xee/0x120
 [<ffffffff81229fa0>] do_vfs_ioctl+0x2d0/0x4b0
 [<ffffffff81217e01>] ? __sb_end_write+0x11/0x70
 [<ffffffff8122a201>] SyS_ioctl+0x81/0xa0
 [<ffffffff8122c47d>] ? SyS_poll+0x6d/0x120
 [<ffffffff817647a9>] system_call_fastpath+0x12/0x17