Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 0 PID: 1089 at drivers/gpu/drm/i915/intel_display.c:1278 assert_plane.constprop.78+0x6b/0x70 [i915]()
plane A assertion failure (expected on, current off)
Modules linked in: rfcomm fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep arc4 intel_rapl x86_pkg_temp_thermal uvcvideo coretemp kvm_intel videobuf2_vmalloc videobuf2_memops videobuf2_core kvm v4l2_common videodev hid_sensor_gyro_3d hid_sensor_rotation hid_sensor_magn_3d hid_sensor_incl_3d hid_sensor_als hid_sensor_accel_3d hid_sensor_trigger industrialio_triggered_buffer kfifo_buf industrialio hid_sensor_iio_common media iwlmvm
 btusb hid_multitouch hid_sensor_hub mac80211 bluetooth iwlwifi crct10dif_pclmul crc32_pclmul vfat iTCO_wdt fat iTCO_vendor_support crc32c_intel cfg80211 ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec serio_raw snd_hwdep snd_seq mei_me lpc_ich snd_seq_device i2c_i801 mei mfd_core shpchp snd_pcm ideapad_laptop sparse_keymap rfkill int3403_thermal snd_timer snd dw_dmac dw_dmac_core soundcore i2c_hid i2c_designware_platform i2c_designware_core nfsd auth_rpcgss nfs_acl lockd sunrpc btrfs xor raid6_pq i915 i2c_algo_bit drm_kms_helper drm sdhci_acpi sdhci mmc_core video analog gameport joydev
CPU: 0 PID: 1089 Comm: Xorg.bin Not tainted 3.17.8-300.fc21.x86_64 #1
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN31WW 10/31/2013
 0000000000000000 000000008712937b ffff880086217760 ffffffff81741aea
 ffff8800862177a8 ffff880086217798 ffffffff810970bd 0000000000000000
 ffff88024fa11000 ffff8802534c7800 ffff880250bd0000 0000000000000000
Call Trace:
 [<ffffffff81741aea>] dump_stack+0x45/0x56
 [<ffffffff810970bd>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8109713c>] warn_slowpath_fmt+0x5c/0x80
 [<ffffffffa012bfab>] assert_plane.constprop.78+0x6b/0x70 [i915]
 [<ffffffffa0131311>] hsw_disable_ips+0x41/0x190 [i915]
 [<ffffffffa0137c09>] intel_crtc_disable_planes+0x49/0x160 [i915]
 [<ffffffffa0138b17>] haswell_crtc_disable+0x57/0x330 [i915]
 [<ffffffffa01327b1>] __intel_set_mode+0x7e1/0x16f0 [i915]
 [<ffffffff81198ce5>] ? free_pages_prepare+0x65/0x1c0
 [<ffffffffa013b0d6>] intel_set_mode+0x16/0x30 [i915]
 [<ffffffffa013c22a>] intel_crtc_set_config+0xa9a/0xeb0 [i915]
 [<ffffffffa006fa34>] drm_mode_set_config_internal+0x64/0xe0 [drm]
 [<ffffffffa00ca153>] restore_fbdev_mode+0xb3/0xe0 [drm_kms_helper]
 [<ffffffffa00ca1a3>] drm_fb_helper_restore_fbdev_mode_unlocked+0x23/0x40 [drm_kms_helper]
 [<ffffffffa00cbca8>] drm_fb_helper_set_par+0x28/0x70 [drm_kms_helper]
 [<ffffffffa0146daa>] intel_fbdev_set_par+0x1a/0x60 [i915]
 [<ffffffff813f4e00>] fb_set_var+0x190/0x420
 [<ffffffff8119c726>] ? free_hot_cold_page_list+0x46/0xa0
 [<ffffffff813eb429>] fbcon_blank+0x259/0x340
 [<ffffffff8146cd3a>] do_unblank_screen+0xba/0x1f0
 [<ffffffff81463da1>] vt_ioctl+0x13b1/0x1430
 [<ffffffff813110c7>] ? avc_alloc_node+0x27/0x130
 [<ffffffff814574cd>] tty_ioctl+0x2ad/0xbf0
 [<ffffffff81311889>] ? avc_has_perm+0xd9/0x1a0
 [<ffffffff812211c0>] do_vfs_ioctl+0x2d0/0x4b0
 [<ffffffff8120ec5e>] ? ____fput+0xe/0x10
 [<ffffffff81221421>] SyS_ioctl+0x81/0xa0
 [<ffffffff81748ca9>] system_call_fastpath+0x16/0x1b