Additional info: libreport version: 2.0.14 abrt_version: 2.0.13 cmdline: BOOT_IMAGE=/vmlinuz-3.5.5-2.fc17.x86_64 root=UUID=c872d43f-1447-48b8-9987-efa945c2e87e ro rd.md=0 rd.lvm=0 rd.dm=0 SYSFONT=True KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8 rhgb quiet kernel: 3.5.5-2.fc17.x86_64 kernel_tainted_long: :Proprietary module has not been loaded. :Taint on warning. backtrace: :WARNING: at drivers/gpu/drm/i915/intel_display.c:1097 assert_plane+0x78/0x80 [i915]() :Hardware name: Latitude E5520 :plane B assertion failure (expected off, current on) :Modules linked in: xfs btrfs libcrc32c zlib_deflate nls_utf8 vfat fat usb_storage tcp_lp vmnet(O) fuse vsock(O) vmci(O) vmmon(O) i8k be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser ebtable_nat ebtables lockd rfcomm rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp nf_conntrack_ipv4 bnep sunrpc libiscsi ip6t_REJECT nf_defrag_ipv4 scsi_transport_iscsi nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter xt_state nf_conntrack ip6_tables input_polldev snd_hda_codec_hdmi snd_hda_codec_idt arc4 iwlwifi mac80211 snd_hda_intel btusb snd_hda_codec bluetooth snd_hwdep snd_seq cfg80211 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core ppdev rfkill videodev snd_seq_device snd_pcm snd_page_alloc snd_timer snd soundcore parport_pc media option usb_wwan parport dell_wmi tg3 sparse_keymap coretemp i2c_i801 dell_laptop dcdbas joydev mei lpc_ich mfd_core microcode vhost_net tun macvtap macvlan kvm_intel kvm binfmt_mis :c uinput crc32c_intel ghash_clmulni_intel hid_logitech_dj sdhci_pci sdhci firewire_ohci firewire_core mmc_core crc_itu_t wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan] :Pid: 2767, comm: kworker/0:0 Tainted: G W O 3.5.5-2.fc17.x86_64 #1 :Call Trace: : [<ffffffff8105864f>] warn_slowpath_common+0x7f/0xc0 : [<ffffffff81058746>] warn_slowpath_fmt+0x46/0x50 : [<ffffffffa008eed8>] assert_plane+0x78/0x80 [i915] : [<ffffffffa0098104>] intel_crtc_disable+0x54/0xb0 [i915] : [<ffffffffa0066785>] drm_helper_disable_unused_functions+0x115/0x170 [drm_kms_helper] : [<ffffffffa006807a>] drm_crtc_helper_set_config+0x92a/0xb10 [drm_kms_helper] : [<ffffffffa002212f>] ? drm_mode_object_get+0x6f/0xc0 [drm] : [<ffffffffa00227d3>] ? drm_mode_create+0x33/0x80 [drm] : [<ffffffffa0065e88>] drm_fb_helper_set_par+0x78/0x100 [drm_kms_helper] : [<ffffffffa0066083>] drm_fb_helper_single_fb_probe+0x173/0x300 [drm_kms_helper] : [<ffffffffa0065dcd>] drm_fb_helper_hotplug_event+0xdd/0x120 [drm_kms_helper] : [<ffffffffa00b00dc>] intel_fb_output_poll_changed+0x1c/0x20 [i915] : [<ffffffffa0066b88>] output_poll_execute+0x198/0x1b0 [drm_kms_helper] : [<ffffffff81075f99>] process_one_work+0x129/0x400 : [<ffffffffa00669f0>] ? drm_helper_connector_dpms+0x130/0x130 [drm_kms_helper] : [<ffffffff810765c6>] worker_thread+0x126/0x2e0 : [<ffffffff810764a0>] ? rescuer_thread+0x1f0/0x1f0 : [<ffffffff8107b183>] kthread+0x93/0xa0 : [<ffffffff816162a4>] kernel_thread_helper+0x4/0x10 : [<ffffffff8107b0f0>] ? kthread_freezable_should_stop+0x70/0x70 : [<ffffffff816162a0>] ? gs_change+0x13/0x13
*** This bug has been marked as a duplicate of bug 838791 ***