WARNING: at drivers/gpu/drm/i915/intel_pm.c:3317 skl_update_other_pipe_wm+0x1d6/0x1e0 [i915]() WARN_ON(!wm_changed) Modules linked in: sd_mod crc_t10dif crct10dif_generic i915 i2c_algo_bit drm_kms_helper crct10dif_pclmul crct10dif_common e1000e crc32c_intel ahci ptp libahci pps_core drm libata i2c_hid i2c_core video dm_mirror dm_region_hash dm_log dm_mod CPU: 0 PID: 300 Comm: kworker/u8:2 Not tainted 3.10.0-327.36.1.el7.x86_64 #1 Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0051.2016.0804.1114 08/04/2016 Workqueue: events_unbound async_run_entry_fn ffff880452597440 00000000f64ca5e6 ffff8804525973f8 ffffffff81636301 ffff880452597430 ffffffff8107b260 ffff880452e4c378 ffff880452597560 ffff8804525974d0 ffff8804525b4000 0000000000000000 ffff880452597498 Call Trace: [] dump_stack+0x19/0x1b [] warn_slowpath_common+0x70/0xb0 [] warn_slowpath_fmt+0x5c/0x80 [] skl_update_other_pipe_wm+0x1d6/0x1e0 [i915] [] skl_update_wm+0x1ed/0x7e0 [i915] [] ? __switch_to+0xf8/0x4b0 [] ? __schedule+0x2d8/0x900 [] intel_update_watermarks+0x1e/0x30 [i915] [] haswell_crtc_enable+0x4a1/0xb60 [i915] [] __intel_set_mode+0xb12/0xd10 [i915] [] intel_crtc_set_config+0xaab/0xff0 [i915] [] ? kfree_state+0x4b/0x50 [drm] [] drm_mode_set_config_internal+0x67/0x100 [drm] [] restore_fbdev_mode+0xc8/0xf0 [drm_kms_helper] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x25/0x70 [drm_kms_helper] [] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper] [] intel_fbdev_set_par+0x1a/0x60 [i915] [] fbcon_init+0x4f4/0x570 [] visual_init+0xb8/0x120 [] do_bind_con_driver+0x163/0x330 [] do_take_over_console+0x49/0x60 [] do_fbcon_takeover+0x63/0xd0 [] fbcon_event_notify+0x60d/0x720 [] notifier_call_chain+0x4c/0x70 [] __blocking_notifier_call_chain+0x4d/0x70 [] blocking_notifier_call_chain+0x16/0x20 [] fb_notifier_call_chain+0x1b/0x20 [] register_framebuffer+0x1f6/0x340 [] drm_fb_helper_initial_config+0x27c/0x3f0 [drm_kms_helper] [] intel_fbdev_initial_config+0x1b/0x20 [i915] [] async_run_entry_fn+0x39/0x120 [] process_one_work+0x17b/0x470 [] worker_thread+0x11b/0x400 [] ? rescuer_thread+0x400/0x400 [] kthread+0xcf/0xe0 [] ? kthread_create_on_node+0x140/0x140 [] ret_from_fork+0x58/0x90 [] ? kthread_create_on_node+0x140/0x140