Additional info:
reporter:       libreport-2.2.0
WARNING: CPU: 3 PID: 8517 at drivers/gpu/drm/i915/intel_dp.c:2747 intel_dp_link_down+0x1f0/0x230 [i915]()
Modules linked in: vfat fat fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ccm ip6t_rpfilter ip6t_REJECT xt_conntrack rfcomm 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 coretemp kvm_intel kvm snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support arc4 crc32c_intel uvcvideo iwldvm snd_hda_codec_conexant videobuf2_vmalloc videobuf2_memops videobuf2_core microcode mac80211 snd_hda_intel snd_hda_codec btusb serio_raw videodev media snd_hwdep snd_seq bluetooth iwlwifi snd_seq_device snd_pcm lpc_ich mei_me i2c_i801 cfg80211 e1000e mfd_core ptp intel_ips thinkpad_acpi pps_core wmi mei snd_page_alloc rfkill shpchp snd_timer snd soundcore acpi_cpufreq uinput i915 i2c_algo_bit drm_kms_helper drm i2c_core video ums_realtek usb_storage ecryptfs encrypted_keys trusted tpm
CPU: 3 PID: 8517 Comm: Xorg Not tainted 3.13.7-100.fc19.x86_64.debug #1
Hardware name: LENOVO 3323BFG/3323BFG, BIOS 6QET70WW (1.40 ) 10/11/2012
 0000000000000009 ffff8801dd201c00 ffffffff81762b3f 0000000000000000
 ffff8801dd201c38 ffffffff8107875d ffff880228cf9210 ffff880228cf4520
 ffff880228cf8000 00000000b45c000c ffff8800373b0000 ffff8801dd201c48
Call Trace:
 [<ffffffff81762b3f>] dump_stack+0x4d/0x66
 [<ffffffff8107875d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8107883a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa0125e60>] intel_dp_link_down+0x1f0/0x230 [i915]
 [<ffffffffa012a2a0>] intel_disable_dp+0x70/0x80 [i915]
 [<ffffffffa010e32e>] ironlake_crtc_disable+0x1ae/0x9b0 [i915]
 [<ffffffff810d5ecd>] ? trace_hardirqs_on+0xd/0x10
 [<ffffffffa0114b4f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
 [<ffffffffa0118639>] intel_connector_dpms+0x59/0x70 [i915]
 [<ffffffffa00802f8>] drm_mode_obj_set_property_ioctl+0x328/0x340 [drm]
 [<ffffffffa0080340>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
 [<ffffffffa006edc2>] drm_ioctl+0x502/0x640 [drm]
 [<ffffffff8131d123>] ? inode_has_perm.isra.51+0x53/0x80
 [<ffffffff81216140>] do_vfs_ioctl+0x300/0x520
 [<ffffffff8131d75b>] ? selinux_file_ioctl+0x5b/0x110
 [<ffffffff812163e1>] SyS_ioctl+0x81/0xa0
 [<ffffffff81775b69>] system_call_fastpath+0x16/0x1b