Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 2 PID: 13408 at drivers/gpu/drm/i915/intel_display.c:3361 intel_crtc_wait_for_pending_flips+0x1a5/0x1b0 [i915]()
Modules linked in: uas usb_storage cpufreq_stats ccm rfcomm ip6t_rpfilter ip6t_REJECT xt_conntrack bnep 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 vmw_vsock_vmci_transport vsock vmw_vmci coretemp kvm_intel snd_hda_codec_hdmi kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec arc4 snd_hwdep snd_seq iwldvm joydev sdhci_pci sdhci mmc_core snd_seq_device iTCO_wdt uvcvideo videobuf2_vmalloc videobuf2_memops
 videobuf2_core mac80211 v4l2_common videodev iwlwifi ppdev mxm_wmi iTCO_vendor_support cfg80211 snd_pcm i2c_i801 btusb microcode serio_raw thinkpad_acpi intel_ips media parport_pc parport wmi bluetooth rfkill lpc_ich tpm_tis tpm snd_timer snd soundcore mfd_core shpchp mei_me mei acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd sunrpc ata_generic i915 firewire_ohci pata_acpi firewire_core e1000e i2c_algo_bit crc_itu_t drm_kms_helper drm ptp pps_core video
CPU: 2 PID: 13408 Comm: kworker/u8:12 Not tainted 3.17.8-200.fc20.x86_64 #1
Hardware name: LENOVO 2518F4U/2518F4U, BIOS 6IET83WW (1.43 ) 04/12/2012
Workqueue: events_unbound async_run_entry_fn
 0000000000000000 0000000028504249 ffff88011ef7fb30 ffffffff81728f6c
 0000000000000000 ffff88011ef7fb68 ffffffff81092e7d 0000000000000000
 ffff88022dac5000 ffff88022db882c0 ffff8802303ed000 0000000000000000
Call Trace:
 [<ffffffff81728f6c>] dump_stack+0x45/0x56
 [<ffffffff81092e7d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81092faa>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa01557b5>] intel_crtc_wait_for_pending_flips+0x1a5/0x1b0 [i915]
 [<ffffffff810d1880>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa015cc44>] intel_crtc_disable_planes+0x34/0x160 [i915]
 [<ffffffffa015d39d>] ironlake_crtc_disable+0x4d/0x7c0 [i915]
 [<ffffffffa003a8ea>] ? drm_modeset_lock+0x6a/0xc0 [drm]
 [<ffffffffa0157019>] intel_crtc_control+0x49/0x100 [i915]
 [<ffffffffa00ffaaa>] i915_drm_freeze+0xaa/0x1f0 [i915]
 [<ffffffffa00ffd3f>] i915_pm_suspend+0x2f/0x50 [i915]
 [<ffffffff813b3b46>] pci_pm_suspend+0x76/0x140
 [<ffffffff813b3ad0>] ? pci_pm_freeze+0xf0/0xf0
 [<ffffffff8149048e>] dpm_run_callback+0x4e/0x100
 [<ffffffff8149114e>] __device_suspend+0x11e/0x340
 [<ffffffff8149138f>] async_suspend+0x1f/0xa0
 [<ffffffff810b2f39>] async_run_entry_fn+0x39/0x120
 [<ffffffff810aadc9>] process_one_work+0x149/0x3d0
 [<ffffffff810ab44b>] worker_thread+0x11b/0x490
 [<ffffffff810ab330>] ? rescuer_thread+0x2e0/0x2e0
 [<ffffffff810b04b8>] kthread+0xd8/0xf0
 [<ffffffff810b03e0>] ? kthread_create_on_node+0x190/0x190
 [<ffffffff8173057c>] ret_from_fork+0x7c/0xb0
 [<ffffffff810b03e0>] ? kthread_create_on_node+0x190/0x190