[    5.868426] ------------[ cut here ]------------
[    5.868642] WARNING: CPU: 0 PID: 79 at /build/linux-4nj4Ed/linux-4.4.0/drivers/gpu/drm/i915/intel_fbdev.c:406 intel_fb_initial_config+0x2d4/0x5f0 [i915]()
[    5.868651] WARN_ON(!encoder->crtc)
[    5.868657] Modules linked in:
[    5.868663]  i915(+) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops pata_acpi ahci drm psmouse libahci atl2 fjes video uas usb_storage
[    5.868707] CPU: 0 PID: 79 Comm: kworker/u2:5 Tainted: G S              4.4.0-28-generic #47-Ubuntu
[    5.868715] Hardware name: ASUSTeK Computer INC. 701/701, BIOS 0910    03/03/2008
[    5.868732] Workqueue: events_unbound async_run_entry_fn
[    5.868739]  c1ac3967 24ea9aed 00000286 f5925d04 c13a05df f5925d44 f8a4d904 f5925d34
[    5.868757]  c1070317 f8a5847c f5925d64 0000004f f8a4d904 00000196 f89fd614 f89fd614
[    5.868773]  00000000 00000001 00000001 f5925d50 c107038e 00000009 f5925d44 f8a5847c
[    5.868789] Call Trace:
[    5.868805]  [<c13a05df>] dump_stack+0x58/0x79
[    5.868818]  [<c1070317>] warn_slowpath_common+0x87/0xc0
[    5.868973]  [<f89fd614>] ? intel_fb_initial_config+0x2d4/0x5f0 [i915]
[    5.869124]  [<f89fd614>] ? intel_fb_initial_config+0x2d4/0x5f0 [i915]
[    5.869136]  [<c107038e>] warn_slowpath_fmt+0x3e/0x60
[    5.869286]  [<f89fd614>] intel_fb_initial_config+0x2d4/0x5f0 [i915]
[    5.869439]  [<f89fd340>] ? intel_crtc_fb_gamma_get+0x40/0x40 [i915]
[    5.869486]  [<f85b858f>] drm_setup_crtcs+0x21f/0xa90 [drm_kms_helper]
[    5.869499]  [<c10977d7>] ? ttwu_do_wakeup+0x17/0x110
[    5.869510]  [<c10982b9>] ? try_to_wake_up+0x39/0x360
[    5.869520]  [<c10985f4>] ? wake_up_process+0x14/0x20
[    5.869554]  [<f85b90ac>] drm_fb_helper_initial_config+0xbc/0x400 [drm_kms_helper]
[    5.869567]  [<c10aa139>] ? pick_next_task_fair+0x459/0x520
[    5.869719]  [<f89fe509>] intel_fbdev_initial_config+0x19/0x20 [i915]
[    5.869730]  [<c108f5be>] async_run_entry_fn+0x4e/0x170
[    5.869745]  [<c1087791>] process_one_work+0x121/0x3f0
[    5.869755]  [<c1087a97>] worker_thread+0x37/0x490
[    5.869765]  [<c1087a60>] ? process_one_work+0x3f0/0x3f0
[    5.869774]  [<c108cf46>] kthread+0xa6/0xc0
[    5.869789]  [<c17ab7c9>] ret_from_kernel_thread+0x21/0x38
[    5.869798]  [<c108cea0>] ? kthread_create_on_node+0x170/0x170
[    5.869807] ---[ end trace 9da63cf6595b2d49 ]---
[    5.892431] ------------[ cut here ]------------
[    5.892640] WARNING: CPU: 0 PID: 97 at /build/linux-4nj4Ed/linux-4.4.0/drivers/gpu/drm/i915/intel_fbdev.c:406 intel_fb_initial_config+0x2d4/0x5f0 [i915]()
[    5.892647] WARN_ON(!encoder->crtc)
[    5.892653] Modules linked in:
[    5.892659]  i915(+) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops pata_acpi ahci drm psmouse libahci atl2 fjes video uas usb_storage
[    5.892702] CPU: 0 PID: 97 Comm: kworker/0:3 Tainted: G S      W       4.4.0-28-generic #47-Ubuntu
[    5.892709] Hardware name: ASUSTeK Computer INC. 701/701, BIOS 0910    03/03/2008
[    5.892755] Workqueue: events output_poll_execute [drm_kms_helper]
[    5.892762]  c1ac3967 b9e45d78 00000286 f59a7d24 c13a05df f59a7d64 f8a4d904 f59a7d54
[    5.892780]  c1070317 f8a5847c f59a7d84 00000061 f8a4d904 00000196 f89fd614 f89fd614
[    5.892796]  00000000 00000001 00000001 f59a7d70 c107038e 00000009 f59a7d64 f8a5847c
[    5.892812] Call Trace:
[    5.892830]  [<c13a05df>] dump_stack+0x58/0x79
[    5.892845]  [<c1070317>] warn_slowpath_common+0x87/0xc0
[    5.892999]  [<f89fd614>] ? intel_fb_initial_config+0x2d4/0x5f0 [i915]
[    5.893150]  [<f89fd614>] ? intel_fb_initial_config+0x2d4/0x5f0 [i915]
[    5.893162]  [<c107038e>] warn_slowpath_fmt+0x3e/0x60
[    5.893311]  [<f89fd614>] intel_fb_initial_config+0x2d4/0x5f0 [i915]
[    5.893464]  [<f89fd340>] ? intel_crtc_fb_gamma_get+0x40/0x40 [i915]
[    5.893499]  [<f85b858f>] drm_setup_crtcs+0x21f/0xa90 [drm_kms_helper]
[    5.893512]  [<c10977d7>] ? ttwu_do_wakeup+0x17/0x110
[    5.893526]  [<c17a9817>] ? __ww_mutex_lock+0x17/0xa0
[    5.893627]  [<f87dfff4>] ? drm_modeset_lock_all_ctx+0x94/0xb0 [drm]
[    5.893663]  [<f85b8ebd>] drm_fb_helper_hotplug_event+0xbd/0x120 [drm_kms_helper]
[    5.893815]  [<f89fe6ba>] intel_fbdev_output_poll_changed+0x1a/0x20 [i915]
[    5.893845]  [<f85ac5e1>] drm_kms_helper_hotplug_event+0x21/0x30 [drm_kms_helper]
[    5.893875]  [<f85ac7d8>] output_poll_execute+0x188/0x1c0 [drm_kms_helper]
[    5.893890]  [<c1087791>] process_one_work+0x121/0x3f0
[    5.893901]  [<c1087a97>] worker_thread+0x37/0x490
[    5.893911]  [<c1087a60>] ? process_one_work+0x3f0/0x3f0
[    5.893920]  [<c108cf46>] kthread+0xa6/0xc0
[    5.893934]  [<c17ab7c9>] ret_from_kernel_thread+0x21/0x38
[    5.893943]  [<c108cea0>] ? kthread_create_on_node+0x170/0x170
[    5.893952] ---[ end trace 9da63cf6595b2d4a ]---
[    5.894600] ------------[ cut here ]------------
[    5.894644] WARNING: CPU: 0 PID: 97 at /build/linux-4nj4Ed/linux-4.4.0/drivers/gpu/drm/drm_atomic_helper.c:723 drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]()
[    5.894650] Modules linked in: i915(+) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops pata_acpi ahci drm psmouse libahci atl2 fjes video uas usb_storage
[    5.894693] CPU: 0 PID: 97 Comm: kworker/0:3 Tainted: G S      W       4.4.0-28-generic #47-Ubuntu
[    5.894700] Hardware name: ASUSTeK Computer INC. 701/701, BIOS 0910    03/03/2008
[    5.894730] Workqueue: events output_poll_execute [drm_kms_helper]
[    5.894736]  c1ac3967 b9e45d78 00000286 f59a7d54 c13a05df 00000000 f85bbfb0 f59a7d84
[    5.894753]  c1070317 c19b84b8 00000000 00000061 f85bbfb0 000002d3 f85b38aa f85b38aa
[    5.894769]  f5c19400 00000000 f5a6fa00 f59a7d94 c1070422 00000009 00000000 f59a7dbc
[    5.894785] Call Trace:
[    5.894797]  [<c13a05df>] dump_stack+0x58/0x79
[    5.894811]  [<c1070317>] warn_slowpath_common+0x87/0xc0
[    5.894844]  [<f85b38aa>] ? drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]
[    5.894877]  [<f85b38aa>] ? drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]
[    5.894889]  [<c1070422>] warn_slowpath_null+0x22/0x30
[    5.894922]  [<f85b38aa>] drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]
[    5.895079]  [<f89e86a8>] ? intel_pre_plane_update+0xd8/0x130 [i915]
[    5.895228]  [<f89e909a>] intel_atomic_commit+0x52a/0x6a0 [i915]
[    5.895306]  [<f87e12be>] ? drm_atomic_check_only+0x1ae/0x600 [drm]
[    5.895381]  [<f87dfed9>] ? drm_modeset_lock+0x49/0xd0 [drm]
[    5.895457]  [<f87e07dc>] ? drm_atomic_set_crtc_for_connector+0x5c/0xe0 [drm]
[    5.895534]  [<f87e1742>] drm_atomic_commit+0x32/0x60 [drm]
[    5.895569]  [<f85b6ef3>] restore_fbdev_mode+0x253/0x290 [drm_kms_helper]
[    5.895645]  [<f87dfff4>] ? drm_modeset_lock_all_ctx+0x94/0xb0 [drm]
[    5.895680]  [<f85b8f47>] drm_fb_helper_restore_fbdev_mode_unlocked+0x27/0x70 [drm_kms_helper]
[    5.895714]  [<f85b8fbd>] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper]
[    5.895747]  [<f85b8ecc>] drm_fb_helper_hotplug_event+0xcc/0x120 [drm_kms_helper]
[    5.895900]  [<f89fe6ba>] intel_fbdev_output_poll_changed+0x1a/0x20 [i915]
[    5.895931]  [<f85ac5e1>] drm_kms_helper_hotplug_event+0x21/0x30 [drm_kms_helper]
[    5.895960]  [<f85ac7d8>] output_poll_execute+0x188/0x1c0 [drm_kms_helper]
[    5.895974]  [<c1087791>] process_one_work+0x121/0x3f0
[    5.895985]  [<c1087a97>] worker_thread+0x37/0x490
[    5.895995]  [<c1087a60>] ? process_one_work+0x3f0/0x3f0
[    5.896004]  [<c108cf46>] kthread+0xa6/0xc0
[    5.896016]  [<c17ab7c9>] ret_from_kernel_thread+0x21/0x38
[    5.896016]  [<c108cea0>] ? kthread_create_on_node+0x170/0x170
[    5.896088] ---[ end trace 9da63cf6595b2d4b ]---