Comment 5 for bug 1436590

also crashed on Linux Kernel 3.17.2

[ 48.274826] ------------[ cut here ]------------
[ 48.274858] WARNING: CPU: 0 PID: 920 at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:1278 assert_plane.constprop.82+0x6f/0x80 [i915]()
[ 48.274859] plane A assertion failure (expected on, current off)
[ 48.274885] Modules linked in: ctr ccm binfmt_misc rfcomm bnep nls_iso8859_1 arc4 iwlmvm mac80211 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp iwlwifi kvm_intel uvcvideo kvm videobuf2_vmalloc joydev snd_hda_codec_realtek serio_raw rtc_efi videobuf2_memops snd_hda_codec_generic snd_hda_codec_hdmi videobuf2_core snd_seq_midi v4l2_common videodev snd_seq_midi_event cfg80211 media snd_hda_intel btusb snd_hda_controller nvram bluetooth snd_rawmidi snd_hda_codec snd_hwdep snd_pcm snd_seq snd_seq_device mei_me shpchp mei lpc_ich snd_timer snd soundcore mac_hid parport_pc ppdev lp parport autofs4 dm_crypt crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i915 psmouse ahci libahci e1000e i2c_algo_bit drm_kms_helper ptp pps_core
[ 48.274886] drm wmi video
[ 48.274889] CPU: 0 PID: 920 Comm: Xorg Tainted: G W 3.17.2-031702-generic #201410301416
[ 48.274890] Hardware name: LENOVO 20BSCTO1WW/20BSCTO1WW, BIOS N14ET25W (1.03 ) 12/01/2014
[ 48.274892] 00000000000004fe ffff8800a5be3718 ffffffff82796c17 0000000000000282
[ 48.274894] ffff8800a5be3768 ffff8800a5be3758 ffffffff82074a3c ffff88024dc14580
[ 48.274895] 0000000000000000 ffff88023d020000 ffff8800a4b36000 0000000000000000
[ 48.274896] Call Trace:
[ 48.274900] [<ffffffff82796c17>] dump_stack+0x46/0x58
[ 48.274903] [<ffffffff82074a3c>] warn_slowpath_common+0x8c/0xc0
[ 48.274905] [<ffffffff82074b26>] warn_slowpath_fmt+0x46/0x50
[ 48.274927] [<ffffffffc01b7501>] ? intel_link_compute_m_n+0x51/0x60 [i915]
[ 48.274942] [<ffffffffc01ae3ff>] assert_plane.constprop.82+0x6f/0x80 [i915]
[ 48.274954] [<ffffffffc01b6af6>] hsw_disable_ips+0x56/0x1b0 [i915]
[ 48.274965] [<ffffffffc01ba1e8>] intel_crtc_disable_planes+0x48/0x160 [i915]
[ 48.274975] [<ffffffffc01b7896>] ? intel_crtc_compute_config+0x216/0x2d0 [i915]
[ 48.274986] [<ffffffffc01ba865>] haswell_crtc_disable+0x55/0x220 [i915]
[ 48.274995] [<ffffffffc01b7e01>] __intel_set_mode+0x171/0x490 [i915]
[ 48.274997] [<ffffffff821cbfeb>] ? __kmalloc+0x1db/0x240
[ 48.275008] [<ffffffffc01bc446>] intel_set_mode+0x16/0x30 [i915]
[ 48.275018] [<ffffffffc01bcf4e>] intel_crtc_set_config+0x1ee/0x370 [i915]
[ 48.275020] [<ffffffff822b3a7b>] ? do_get_write_access+0x39b/0x520
[ 48.275022] [<ffffffff827a1e68>] ? __ww_mutex_lock+0x28/0xad
[ 48.275033] [<ffffffffc006dec3>] drm_mode_set_config_internal+0x63/0xf0 [drm]
[ 48.275038] [<ffffffffc00b653b>] restore_fbdev_mode+0xbb/0xe0 [drm_kms_helper]
[ 48.275043] [<ffffffffc00b662c>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2c/0x50 [drm_kms_helper]
[ 48.275047] [<ffffffffc00b7e41>] drm_fb_helper_set_par+0x31/0x80 [drm_kms_helper]
[ 48.275059] [<ffffffffc01c5a6a>] intel_fbdev_set_par+0x1a/0x60 [i915]
[ 48.275062] [<ffffffff824118c3>] fb_set_var+0x283/0x3a0
[ 48.275064] [<ffffffff820aa261>] ? update_curr+0x141/0x200
[ 48.275065] [<ffffffff82408704>] fbcon_blank+0x1e4/0x2d0
[ 48.275068] [<ffffffff824968ae>] do_unblank_screen.part.21+0x9e/0x180
[ 48.275069] [<ffffffff824969d8>] do_unblank_screen+0x48/0x80
[ 48.275072] [<ffffffff8248bf35>] complete_change_console+0x65/0xf0
[ 48.275073] [<ffffffff8248d0ec>] vt_ioctl+0x112c/0x11c0
[ 48.275082] [<ffffffffc0068210>] ? drm_setmaster_ioctl+0xe0/0xe0 [drm]
[ 48.275083] [<ffffffff824805a8>] tty_ioctl+0x298/0x8f0
[ 48.275085] [<ffffffff82226e92>] ? fsnotify+0x1c2/0x280
[ 48.275087] [<ffffffff821fbec5>] do_vfs_ioctl+0x75/0x2c0
[ 48.275089] [<ffffffff821e9df6>] ? vfs_write+0x196/0x1f0
[ 48.275091] [<ffffffff82206415>] ? __fget_light+0x25/0x70
[ 48.275092] [<ffffffff821fc1a1>] SyS_ioctl+0x91/0xb0
[ 48.275093] [<ffffffff827a476d>] system_call_fastpath+0x1a/0x1f
[ 48.275094] ---[ end trace f33ece274baa9e96 ]---