Additional info:
reporter:       libreport-2.2.3
WARNING: CPU: 0 PID: 844 at drivers/gpu/drm/i915/intel_display.c:3313 intel_crtc_wait_for_pending_flips+0x198/0x1a0 [i915]()
Modules linked in: tcp_diag inet_diag nf_conntrack_netbios_ns nf_conntrack_broadcast ccm 8021q garp mrp fcoe libfcoe libfc scsi_transport_fc scsi_tgt 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 hp_accel lis3lv02d input_polldev uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media snd_hda_codec_hdmi snd_hda_codec_conexant x86_pkg_temp_thermal sdhci_pci coretemp kvm arc4 sdhci iwldvm snd_hda_codec_generic mac80211 iTCO_wdt iwlwifi crct10dif_pclmul
crc32_pclmul mmc_core thinkpad_acpi snd_hda_intel iTCO_vendor_support crc32c_intel snd_hda_controller cfg80211 snd_hda_codec shpchp ghash_clmulni_intel snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd soundcore rfkill microcode mei_me serio_raw i2c_i801 lpc_ich mfd_core mei nfsd auth_rpcgss nfs_acl lockd sunrpc binfmt_misc i915 i2c_algo_bit drm_kms_helper drm r8169 mii i2c_core video analog gameport joydev
CPU: 0 PID: 844 Comm: X Not tainted 3.16.3-200.fc20.x86_64 #1
Hardware name: LENOVO 1143CTO/1143CTO, BIOS 8HET41WW(1.23) 01/13/2012
0000000000000000 00000000553321fc ffff8800b3e53928 ffffffff81707091
0000000000000000 ffff8800b3e53960 ffffffff8108d0ad 0000000000000000
ffff8801395f8000 ffff880036b28210 ffff88003682b000 ffff88003682b368
Call Trace:
[<ffffffff81707091>] dump_stack+0x45/0x56
[<ffffffff8108d0ad>] warn_slowpath_common+0x7d/0xa0
[<ffffffff8108d1da>] warn_slowpath_null+0x1a/0x20
[<ffffffffa0112db8>] intel_crtc_wait_for_pending_flips+0x198/0x1a0 [i915]
[<ffffffff810d4610>] ? abort_exclusive_wait+0xb0/0xb0
[<ffffffffa011c6f9>] intel_crtc_set_config+0x959/0xdb0 [i915]
[<ffffffffa00616a1>] drm_mode_set_config_internal+0x61/0xe0 [drm]
[<ffffffffa00b4ca3>] restore_fbdev_mode+0xb3/0xe0 [drm_kms_helper]
[<ffffffffa00b4cf3>] drm_fb_helper_restore_fbdev_mode_unlocked+0x23/0x40 [drm_kms_helper]
[<ffffffffa00b6928>] drm_fb_helper_set_par+0x28/0x70 [drm_kms_helper]