Additional info:
reporter:       libreport-2.5.1
WARNING: CPU: 0 PID: 1755 at drivers/gpu/drm/i915/intel_display.c:1260 assert_plane.constprop.80+0x74/0xb0 [i915]()
plane A assertion failure (expected on, current off)
Modules linked in: uas usb_storage fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge 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 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi intel_rapl iTCO_wdt iosf_mbi x86_pkg_temp_thermal coretemp iTCO_vendor_support snd_hda_intel snd_hda_controller kvm_intel snd_hda_codec uvcvideo videobuf2_vmalloc videobuf2_core kvm joydev btusb arc4 bluetooth videobuf2_memops v4l2_common crct10dif_pclmul videodev rtsx_pci_ms
 snd_hwdep crc32_pclmul snd_seq cdc_acm media crc32c_intel memstick ghash_clmulni_intel snd_seq_device iwlmvm snd_pcm serio_raw snd_timer i2c_i801 thinkpad_acpi wmi mac80211 iwlwifi cfg80211 snd soundcore mei_me mei tpm_tis tpm rfkill lpc_ich shpchp nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc cdc_mbim cdc_ncm usbnet cdc_wdm mii 8021q garp stp llc mrp i915 rtsx_pci_sdmmc mmc_core e1000e i2c_algo_bit rtsx_pci drm_kms_helper mfd_core ptp drm pps_core video
CPU: 0 PID: 1755 Comm: Xorg Not tainted 4.0.1-300.fc22.x86_64 #1
Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET78WW (2.28 ) 07/29/2014
 0000000000000000 000000008828ca4a ffff88030e693648 ffffffff817819a8
 0000000000000000 ffff88030e6936a0 ffff88030e693688 ffffffff8109c60a
 ffff88030e693678 0000000000000000 ffff88030c4d0000 ffff880036976000
Call Trace:
 [<ffffffff817819a8>] dump_stack+0x45/0x57
 [<ffffffff8109c60a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8109c695>] warn_slowpath_fmt+0x55/0x70
 [<ffffffffa019b734>] assert_plane.constprop.80+0x74/0xb0 [i915]
 [<ffffffffa01a2e63>] hsw_disable_ips+0x43/0x1a0 [i915]
 [<ffffffffa01a3248>] intel_crtc_disable_planes+0x48/0x150 [i915]
 [<ffffffffa01a5329>] ? intel_link_compute_m_n+0x49/0x50 [i915]
 [<ffffffffa01a4007>] haswell_crtc_disable+0x47/0x3c0 [i915]
 [<ffffffffa01a4ef4>] __intel_set_mode+0x9a4/0xb80 [i915]
 [<ffffffffa01c21cd>] ? intel_ddi_compute_config+0x3d/0xa0 [i915]
 [<ffffffffa01ac2bf>] intel_crtc_set_config+0xc9f/0x1010 [i915]
 [<ffffffffa0037e07>] ? drm_atomic_state_free+0x27/0x60 [drm]
 [<ffffffffa0028036>] drm_mode_set_config_internal+0x66/0x100 [drm]
 [<ffffffffa009e738>] restore_fbdev_mode+0xc8/0xf0 [drm_kms_helper]
 [<ffffffffa00a0789>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80 [drm_kms_helper]
 [<ffffffffa00a0802>] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper]
 [<ffffffffa01bbbba>] intel_fbdev_set_par+0x1a/0x60 [i915]
 [<ffffffff814172a6>] fb_set_var+0x236/0x480
 [<ffffffff811ba3f8>] ? shmem_recalc_inode+0x78/0xa0
 [<ffffffff813ada59>] ? flex_array_get_ptr+0x9/0x20
 [<ffffffff8133d7b5>] ? type_attribute_bounds_av+0x65/0x2f0
 [<ffffffff8140cd7c>] fbcon_blank+0x34c/0x390
 [<ffffffff81493cfa>] do_unblank_screen+0xda/0x1d0
 [<ffffffff8148896b>] vt_ioctl+0x57b/0x1430
 [<ffffffff81326937>] ? avc_alloc_node+0x27/0x130
 [<ffffffff8147b5b1>] tty_ioctl+0x3f1/0xc30
 [<ffffffff81327128>] ? avc_has_perm+0x128/0x1a0
 [<ffffffff8122e321>] ? putname+0x41/0x80
 [<ffffffff8122eac9>] ? do_unlinkat+0x109/0x350
 [<ffffffff81231df6>] do_vfs_ioctl+0x2c6/0x4d0
 [<ffffffff81232081>] SyS_ioctl+0x81/0xa0
 [<ffffffff817882c8>] ? int_check_syscall_exit_work+0x34/0x3d
 [<ffffffff81788089>] system_call_fastpath+0x12/0x17