Comment 4 for bug 1734490

[ 4.710462] WARNING: CPU: 1 PID: 168 at /build/linux-2JtliJ/linux-4.13.0/drivers/gpu/drm/i915/intel_display.c:1252 assert_planes_disabled+0x128/0x140 [i915]
[ 4.710466] Modules linked in: i915(+) psmouse ahci r8169 i2c_algo_bit libahci drm_kms_helper pata_acpi ssb syscopyarea sysfillrect sysimgblt mii fb_sys_fops drm video
[ 4.710508] CPU: 1 PID: 168 Comm: systemd-udevd Not tainted 4.13.0-17-generic #20-Ubuntu
[ 4.710518] Hardware name: LENOVO 2957 /Mariana2, BIOS 1ACN16WW(V1.07) 06/05/2009
[ 4.710526] task: f61b2700 task.stack: f63fc000
[ 4.710698] EIP: assert_planes_disabled+0x128/0x140 [i915]
[ 4.710703] EFLAGS: 00010296 CPU: 1
[ 4.710707] EAX: 00000046 EBX: f4d54000 ECX: 000002c2 EDX: 00000000
[ 4.710712] ESI: 00000001 EDI: 00000001 EBP: f63fdbac ESP: f63fdb90
[ 4.710716] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 4.710721] CR0: 80050033 CR2: bfbba8fc CR3: 34c1eac0 CR4: 000006f0
[ 4.710725] Call Trace:
[ 4.710904] intel_disable_pipe+0x45/0x220 [i915]
[ 4.711081] i9xx_crtc_disable+0x68/0x3c0 [i915]
[ 4.711146] ? drm_connector_list_iter_next+0x71/0xa0 [drm]
[ 4.711201] ? drm_atomic_add_affected_connectors+0xe8/0x100 [drm]
[ 4.711377] intel_crtc_disable_noatomic+0xb5/0x2a0 [i915]
[ 4.711548] ? intel_modeset_setup_hw_state+0xa31/0xc30 [i915]
[ 4.711720] intel_modeset_setup_hw_state+0xa5e/0xc30 [i915]
[ 4.711895] intel_modeset_init+0x4d1/0xe90 [i915]
[ 4.712057] ? intel_i2c_reset+0x3b/0x50 [i915]
[ 4.712279] ? intel_setup_gmbus+0x1e1/0x270 [i915]
[ 4.712450] i915_driver_load+0xa66/0x12d0 [i915]
[ 4.712470] ? acpi_dev_found+0x6c/0x80
[ 4.712631] i915_pci_probe+0x3a/0x70 [i915]
[ 4.712652] pci_device_probe+0xc2/0x160
[ 4.712668] driver_probe_device+0x2b9/0x410
[ 4.712679] __driver_attach+0x99/0xe0
[ 4.712690] ? driver_probe_device+0x410/0x410
[ 4.712700] bus_for_each_dev+0x57/0x90
[ 4.712711] driver_attach+0x19/0x20
[ 4.712720] ? driver_probe_device+0x410/0x410
[ 4.712730] bus_add_driver+0x187/0x230
[ 4.712739] ? 0xf8ca3000
[ 4.712750] driver_register+0x56/0xd0
[ 4.712758] ? 0xf8ca3000
[ 4.712768] __pci_register_driver+0x33/0x40
[ 4.712939] i915_init+0x4c/0x51 [i915]
[ 4.712963] do_one_initcall+0x46/0x180
[ 4.712977] ? kvfree+0x45/0x50
[ 4.712987] ? kmem_cache_alloc_trace+0x13d/0x1a0
[ 4.712996] ? do_init_module+0x21/0x1cc
[ 4.713006] ? do_init_module+0x21/0x1cc
[ 4.713017] do_init_module+0x50/0x1cc
[ 4.713027] load_module+0x1533/0x1aa0
[ 4.713042] ? kernel_read_file+0x26e/0x2a0
[ 4.713057] SyS_finit_module+0x8a/0xe0
[ 4.713072] do_fast_syscall_32+0x71/0x150
[ 4.713086] entry_SYSENTER_32+0x4e/0x7c
[ 4.713094] EIP: 0xb7fbacf9
[ 4.713097] EFLAGS: 00000296 CPU: 1
[ 4.713102] EAX: ffffffda EBX: 00000012 ECX: b7db3a71 EDX: 00000000
[ 4.713107] ESI: 0197fc70 EDI: 019713e0 EBP: 00000000 ESP: bfbc1e9c
[ 4.713112] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 4.713118] Code: ff 83 c4 10 e9 44 ff ff ff 57 68 e8 80 c5 f8 e8 6c 14 52 d3 0f ff 58 5a e9 30 ff ff ff ff 75 f0 50 68 20 81 c5 f8 e8 55 14 52 d3 <0f> ff 83 c4 0c e9 3e ff ff ff 8d b4 26 00 00 00 00 8d bc 27 00
[ 4.713240] ---[ end trace 26d7187e7d836b0c ]---