Additional info:
reporter:       libreport-2.1.11
WARNING: CPU: 0 PID: 1476 at drivers/gpu/drm/i915/intel_display.c:3983 intel_modeset_check_state+0x774/0x780 [i915]()
wrong connector dpms state
Modules linked in: fuse 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 bnep coretemp snd_hda_codec_idt snd_hda_codec_hdmi snd_hda_intel kvm snd_hda_codec dell_wmi uvcvideo snd_hwdep gpio_ich videobuf2_vmalloc btusb iTCO_wdt iTCO_vendor_support sparse_keymap snd_seq snd_seq_device snd_pcm videobuf2_memops videobuf2_core videodev dell_laptop microcode dcdbas media snd_page_alloc serio_raw snd_timer r592 i2c_i801 bluetooth arc4 iwl3945 iwlegacy joydev snd mac80211 cfg80211 lpc_ich mfd_core sky2 memstick sdhci_pci sdhci soundcore rfkill mmc_core wmi shpchp acpi_cpufreq ata_generic firewire_ohci pata_acpi firewire_core crc_itu_t i915 i2c_algo_bit drm_kms_helper drm i2c_core video
CPU: 0 PID: 1476 Comm: upowerd Not tainted 3.12.8-300.fc20.x86_64 #1
Hardware name: Dell Inc. Inspiron 1525                   /0M353G, BIOS A17 10/27/2009
 0000000000000009 ffff8800a4b31b70 ffffffff81667a8b ffff8800a4b31bb8
 ffff8800a4b31ba8 ffffffff8106921d ffff88003772a000 ffff880037729000
 ffff8800375a9800 ffff8800375a9bf0 ffff8800aa2bc000 ffff8800a4b31c08
Call Trace:
 [<ffffffff81667a8b>] dump_stack+0x45/0x56
 [<ffffffff8106921d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8106928c>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffffa00bfc54>] intel_modeset_check_state+0x774/0x780 [i915]
 [<ffffffffa00bfcf5>] intel_set_mode+0x25/0x30 [i915]
 [<ffffffffa00c1056>] intel_get_load_detect_pipe+0x256/0x410 [i915]
 [<ffffffffa00e422d>] intel_tv_detect+0x13d/0x500 [i915]
 [<ffffffffa002a04b>] status_show+0x3b/0x80 [drm]
 [<ffffffff81400aa0>] dev_attr_show+0x20/0x60
 [<ffffffff81222aba>] sysfs_read_file+0x9a/0x1a0
 [<ffffffff811ae9be>] vfs_read+0x9e/0x170
 [<ffffffff811af4e9>] SyS_read+0x49/0xa0
 [<ffffffff810f1446>] ? __audit_syscall_exit+0x1f6/0x2a0
 [<ffffffff81676a69>] system_call_fastpath+0x16/0x1b