[183803.189339] ------------[ cut here ]------------
[183803.189422] WARNING: CPU: 2 PID: 1654 at /build/buildd/linux-3.16.0/drivers/gpu/drm/i915/intel_display.c:3324 intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]()
[183803.189426] Modules linked in: dummy btusb ctr ccm bbswitch(OE) rfcomm bnep intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel snd_soc_rt5640 arc4 aes_x86_64 lrw gf128mul snd_soc_rl6231 snd_soc_core glue_helper snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel ablk_helper cryptd snd_hda_controller snd_compress snd_hda_codec iwlmvm snd_pcm_dmaengine snd_hwdep mac80211 snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer asus_nb_wmi asus_wmi sparse_keymap mxm_wmi uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common joydev videodev snd media serio_raw iwlwifi bluetooth cfg80211 6lowpan_iphc hid_multitouch 8250_dw soundcore wmi spi_pxa2xx_platform
[183803.189496]  i915 dw_dmac dw_dmac_core drm_kms_helper drm i2c_hid snd_soc_sst_acpi i2c_algo_bit video mei_me shpchp i2c_designware_platform lpc_ich mei i2c_designware_core intel_smartconnect mac_hid parport_pc ppdev lp parport nls_iso8859_1 btrfs xor hid_generic usbhid hid raid6_pq psmouse ahci libahci sdhci_acpi sdhci [last unloaded: btusb]
[183803.189541] CPU: 2 PID: 1654 Comm: Xorg Tainted: P           OE 3.16.0-31-generic #41-Ubuntu
[183803.189544] Hardware name: ASUSTeK COMPUTER INC. UX302LG/UX302LG, BIOS UX302LG.210 06/16/2014
[183803.189547]  0000000000000009 ffff8800c8bcbc18 ffffffff81782d0b 0000000000000000
[183803.189554]  ffff8800c8bcbc50 ffffffff8106ff2d 0000000000000000 ffff88022228e000
[183803.189560]  ffff8800c8c38210 ffff880222029800 ffff880222029800 ffff8800c8bcbc60
[183803.189566] Call Trace:
[183803.189580]  [<ffffffff81782d0b>] dump_stack+0x45/0x56
[183803.189590]  [<ffffffff8106ff2d>] warn_slowpath_common+0x7d/0xa0
[183803.189597]  [<ffffffff8107000a>] warn_slowpath_null+0x1a/0x20
[183803.189637]  [<ffffffffc05d813c>] intel_crtc_wait_for_pending_flips+0x16c/0x180 [i915]
[183803.189647]  [<ffffffff810b97b0>] ? prepare_to_wait_event+0x100/0x100
[183803.189684]  [<ffffffffc05dac03>] intel_crtc_disable_planes+0x33/0x1c0 [i915]
[183803.189691]  [<ffffffff81787e9b>] ? __ww_mutex_lock+0x1b/0xb0
[183803.189727]  [<ffffffffc05dbb47>] haswell_crtc_disable+0x57/0x2d0 [i915]
[183803.189733]  [<ffffffff81788af2>] ? mutex_lock+0x12/0x30
[183803.189768]  [<ffffffffc05dc577>] intel_crtc_update_dpms+0x67/0xa0 [i915]
[183803.189807]  [<ffffffffc05e0c09>] intel_connector_dpms+0x59/0x70 [i915]
[183803.189840]  [<ffffffffc0509e19>] drm_mode_obj_set_property_ioctl+0x399/0x3a0 [drm]
[183803.189869]  [<ffffffffc0509e50>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
[183803.189889]  [<ffffffffc04f8a4f>] drm_ioctl+0x1df/0x680 [drm]
[183803.189899]  [<ffffffff81416ebc>] ? backlight_generate_event+0x5c/0x80
[183803.189905]  [<ffffffff8141770e>] ? brightness_store+0xce/0x100
[183803.189913]  [<ffffffff812205ac>] ? fsnotify+0x27c/0x350
[183803.189920]  [<ffffffff811f5658>] do_vfs_ioctl+0x2c8/0x4a0
[183803.189926]  [<ffffffff811e3b51>] ? __sb_end_write+0x31/0x60
[183803.189933]  [<ffffffff811e16c2>] ? vfs_write+0x1b2/0x1f0
[183803.189939]  [<ffffffff811f58b1>] SyS_ioctl+0x81/0xa0
[183803.189947]  [<ffffffff8178ad2d>] system_call_fastpath+0x1a/0x1f
[183803.189950] ---[ end trace 1941a6a27d414c91 ]---
[183811.858932] systemd-logind[974]: New session c3 of user iacobs.