Additional info:
reporter:       libreport-2.2.3
WARNING: CPU: 6 PID: 262 at drivers/gpu/drm/i915/intel_dp.c:1306 edp_panel_vdd_off.part.12+0x5c/0x60 [i915]()
eDP VDD not forced on
Modules linked in: 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 arc4 iwlmvm mac80211 btusb sdhci_pci x86_pkg_temp_thermal snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel iwlwifi cfg80211 iTCO_wdt iTCO_vendor_support uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev bluetooth snd_hda_controller snd_hda_codec snd_hwdep snd_seq thinkpad_acpi snd_seq_device sdhci coretemp kvm lpc_ich snd_pcm media mei_me ie31200_edac edac_core
mei mmc_core joydev serio_raw shpchp snd_timer snd mfd_core crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i2c_i801 tpm_tis soundcore tpm rfkill nouveau i915 mxm_wmi ttm i2c_algo_bit e1000e drm_kms_helper drm ptp pps_core wmi video
CPU: 6 PID: 262 Comm: kworker/6:1 Not tainted 3.17.2-200.fc20.x86_64 #1
Hardware name: LENOVO 20BGCTO1WW/20BGCTO1WW, BIOS GNET61WW (2.09 ) 02/18/2014
Workqueue: events i915_hotplug_work_func [i915]
0000000000000000 0000000077480095 ffff88084ef37c88 ffffffff817271cc
ffff88084ef37cd0 ffff88084ef37cc0 ffffffff81094ced ffff880852bc90e0
0000000000000000 ffff88084db80000 0000000000000011 0000000000000001
Call Trace:
[<ffffffff817271cc>] dump_stack+0x45/0x56
[<ffffffff81094ced>] warn_slowpath_common+0x7d/0xa0
[<ffffffff81094d6c>] warn_slowpath_fmt+0x5c/0x80
[<ffffffffa011de8b>] ? drm_dp_dpcd_read+0x1b/0x20 [drm_kms_helper]
[<ffffffffa01c085c>] edp_panel_vdd_off.part.12+0x5c/0x60 [i915]
[<ffffffffa01c0f90>] intel_dp_probe_mst.part.15+0xb0/0xf0 [i915]
[<ffffffffa01c3521>] intel_dp_detect+0x101/0x220 [i915]
[<ffffffffa017ca6c>] i915_hotplug_work_func+0x1fc/0x300 [i915]
[<ffffffff810acc39>] process_one_work+0x149/0x3d0
[<ffffffff810ad2bb>] worker_thread+0x11b/0x490
[<ffffffff810ad1a0>] ? rescuer_thread+0x2e0/0x2e0
[<ffffffff810b2318>] kthread+0xd8/0xf0
[<ffffffff810b2240>] ? kthread_create_on_node+0x190/0x190
[<ffffffff8172e7bc>] ret_from_fork+0x7c/0xb0
[<ffffffff810b2240>] ? kthread_create_on_node+0x190/0x190