Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 0 PID: 19896 at drivers/gpu/drm/i915/intel_pm.c:6317 intel_display_power_put+0x14c/0x160 [i915]()
Modules linked in: rfcomm fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT 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 bnep iwlmvm snd_hda_codec_via iTCO_wdt snd_hda_codec_hdmi snd_hda_codec_generic mac80211 iTCO_vendor_support snd_hda_intel x86_pkg_temp_thermal snd_hda_controller coretemp snd_hda_codec kvm_intel snd_hwdep iwlwifi kvm snd_seq snd_seq_device cfg80211 uvcvideo btusb videobuf2_vmalloc videobuf2_memops bluetooth videobuf2_core v4l2_common videodev snd_pcm
 serio_raw rtsx_pci_ms media memstick i2c_i801 mei_me lpc_ich rfkill mei snd_timer tpm_infineon wmi tpm_tis snd tpm soundcore shpchp btrfs xor raid6_pq dm_crypt hid_logitech_dj i915 i2c_algo_bit drm_kms_helper e1000e rtsx_pci_sdmmc mmc_core drm crct10dif_pclmul crc32_pclmul rtsx_pci crc32c_intel ptp ghash_clmulni_intel mfd_core pps_core video
CPU: 0 PID: 19896 Comm: Xorg.bin Not tainted 3.17.4-302.fc21.x86_64 #1
Hardware name: Notebook                         W740SU                          /W740SU                          , BIOS 4.6.5 04/21/2014
 0000000000000000 00000000b9fab314 ffff88008e2a3c70 ffffffff8173f929
 0000000000000000 ffff88008e2a3ca8 ffffffff810970ad ffff880404b9002c
 000000000000000b ffff880404b98610 0000000000000001 ffff880404b90000
Call Trace:
 [<ffffffff8173f929>] dump_stack+0x45/0x56
 [<ffffffff810970ad>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff810971da>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa017233c>] intel_display_power_put+0x14c/0x160 [i915]
 [<ffffffffa01bde53>] intel_crtc_control+0x83/0x100 [i915]
 [<ffffffffa01bdf37>] intel_crtc_update_dpms+0x67/0x80 [i915]
 [<ffffffffa01c70f9>] intel_connector_dpms+0x59/0x70 [i915]
 [<ffffffffa00a6389>] drm_mode_obj_set_property_ioctl+0x399/0x3a0 [drm]
 [<ffffffffa00a63cf>] drm_mode_connector_property_set_ioctl+0x3f/0x60 [drm]
 [<ffffffffa0096e6f>] drm_ioctl+0x1df/0x680 [drm]
 [<ffffffff813f36fe>] ? brightness_store+0xee/0x120
 [<ffffffff8124c87c>] ? fsnotify+0x28c/0x370
 [<ffffffff81220910>] do_vfs_ioctl+0x2d0/0x4b0
 [<ffffffff81220b71>] SyS_ioctl+0x81/0xa0
 [<ffffffff81222d8d>] ? SyS_poll+0x6d/0x120
 [<ffffffff81746ae9>] system_call_fastpath+0x16/0x1b