[64397.223784] WARNING: CPU: 2 PID: 3000 at /build/linux-5vkMGy/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b0/0x1c0 [drm]()
[64397.223785] vblank wait timed out on crtc 0
[64397.223828] Modules linked in: drbg ansi_cprng ctr ccm ip6table_filter ip6_tables iptable_filter ip_tables x_tables binfmt_misc intel_rapl uvcvideo arc4 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 iwldvm videobuf2_core v4l2_common x86_pkg_temp_thermal intel_powerclamp videodev media mac80211 coretemp snd_hda_codec_conexant kvm_intel snd_hda_codec_generic kvm usblp snd_hda_intel snd_hda_codec thinkpad_acpi irqbypass snd_hda_core iwlwifi snd_hwdep snd_pcm nvram snd_seq_midi snd_seq_midi_event crct10dif_pclmul snd_rawmidi cfg80211 snd_seq mei_me snd_seq_device snd_timer crc32_pclmul mei shpchp joydev input_leds snd serio_raw mac_hid aesni_intel aes_x86_64 lrw gf128mul glue_helper lpc_ich soundcore ablk_helper cryptd cuse parport_pc ppdev lp parport autofs4 hid_generic usbhid hid nouveau i915 mxm_wmi
[64397.223840]  ttm i2c_algo_bit psmouse drm_kms_helper ahci firewire_ohci libahci syscopyarea sysfillrect sysimgblt firewire_core fb_sys_fops sdhci_pci e1000e crc_itu_t sdhci drm ptp pps_core wmi fjes video
[64397.223844] CPU: 2 PID: 3000 Comm: Xorg Tainted: G        W       4.4.0-34-lowlatency #53-Ubuntu
[64397.223845] Hardware name: LENOVO 4239CTO/4239CTO, BIOS 8AET46WW (1.26 ) 05/18/2011
[64397.223848]  0000000000000286 00000000bf247721 ffff8800ab8ef838 ffffffff813fa1d1
[64397.223851]  ffff8800ab8ef880 ffffffffc006db38 ffff8800ab8ef870 ffffffff81081b22
[64397.223853]  ffff88003543e800 0000000000000000 0000000000000000 00000000000eefbd
[64397.223853] Call Trace:
[64397.223861]  [<ffffffff813fa1d1>] dump_stack+0x63/0x82
[64397.223866]  [<ffffffff81081b22>] warn_slowpath_common+0x82/0xc0
[64397.223868]  [<ffffffff81081bbc>] warn_slowpath_fmt+0x5c/0x80
[64397.223873]  [<ffffffff810c5015>] ? finish_wait+0x55/0x70
[64397.223889]  [<ffffffffc003d310>] drm_wait_one_vblank+0x1b0/0x1c0 [drm]
[64397.223893]  [<ffffffff810c54b0>] ? wake_atomic_t_function+0x60/0x60
[64397.223937]  [<ffffffffc02579fa>] intel_atomic_commit+0x43a/0x6f0 [i915]
[64397.223960]  [<ffffffffc00569c7>] ? drm_atomic_add_affected_connectors+0x27/0xf0 [drm]
[64397.223981]  [<ffffffffc0057057>] drm_atomic_commit+0x37/0x60 [drm]
[64397.223994]  [<ffffffffc0171e1f>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper]
[64397.224015]  [<ffffffffc00557da>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
[64397.224025]  [<ffffffffc0173ff3>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[64397.224034]  [<ffffffffc017406d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper]
[64397.224068]  [<ffffffffc026c8ba>] intel_fbdev_set_par+0x1a/0x60 [i915]
[64397.224073]  [<ffffffff8147da3f>] ? fb_set_var+0x2ef/0x460
[64397.224076]  [<ffffffff8147d986>] fb_set_var+0x236/0x460
[64397.224079]  [<ffffffff810cb57e>] ? cpuacct_charge+0x4e/0x60
[64397.224083]  [<ffffffff810b62a3>] ? update_curr+0xe3/0x180
[64397.224086]  [<ffffffff810b3b1c>] ? __enqueue_entity+0x6c/0x70
[64397.224088]  [<ffffffff810baab7>] ? put_prev_entity+0x97/0x7d0
[64397.224092]  [<ffffffff81473c7f>] fbcon_blank+0x30f/0x350
[64397.224097]  [<ffffffff8150b063>] do_unblank_screen+0xc3/0x190
[64397.224100]  [<ffffffff81500149>] complete_change_console+0x59/0xe0
[64397.224103]  [<ffffffff815008e0>] vt_ioctl+0x710/0x12e0
[64397.224118]  [<ffffffffc003b7a9>] ? drm_ioctl+0x189/0x540 [drm]
[64397.224123]  [<ffffffff81567f58>] ? pm_runtime_autosuspend_expiration.part.2+0x68/0x70
[64397.224127]  [<ffffffff814f3bf1>] tty_ioctl+0x361/0xc40
[64397.224130]  [<ffffffff8156943a>] ? __pm_runtime_suspend+0x5a/0x70
[64397.224134]  [<ffffffff81225b8f>] do_vfs_ioctl+0x29f/0x490
[64397.224138]  [<ffffffff8122fdc7>] ? __fget+0x77/0xb0
[64397.224140]  [<ffffffff81225df9>] SyS_ioctl+0x79/0x90
[64397.224143]  [<ffffffff8183b232>] entry_SYSCALL_64_fastpath+0x16/0x71
[64397.224145] ---[ end trace 0d8958edbf491b74 ]---