Additional info:
libreport version: 2.0.18
abrt_version:   2.0.18
cmdline:        BOOT_IMAGE=/boot/vmlinuz-3.6.10-2.fc17.i686 root=UUID=5ba5e2cc-d7fd-4346-8b95-d5f1ecabba1a 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:         3.6.10-2.fc17.i686

backtrace:
:WARNING: at drivers/gpu/drm/i915/intel_display.c:1259 intel_disable_pipe+0xd7/0x180 [i915]()
:Hardware name: Satellite L740-X4211
:plane A assertion failure, should be disabled but not
:Modules linked in: fuse bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep arc4 ath9k ath9k_common ath9k_hw ath mac80211 snd_seq cfg80211 snd_seq_device snd_pcm snd_page_alloc ath3k btusb bluetooth snd_timer iTCO_wdt iTCO_vendor_support toshiba_acpi sparse_keymap snd rfkill soundcore coretemp kvm_intel kvm mei serio_raw i2c_i801 lpc_ich microcode atl1c toshiba_bluetooth uinput crc32c_intel ums_realtek usb_storage wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core
:Pid: 2226, comm: kworker/0:2 Not tainted 3.6.10-2.fc17.i686 #1
:Call Trace:
: [<c043c652>] warn_slowpath_common+0x72/0xa0
: [<f80aec07>] ? intel_disable_pipe+0xd7/0x180 [i915]
: [<f80aec07>] ? intel_disable_pipe+0xd7/0x180 [i915]
: [<c043c723>] warn_slowpath_fmt+0x33/0x40
: [<f80aec07>] intel_disable_pipe+0xd7/0x180 [i915]
: [<f80b0239>] ironlake_crtc_disable+0x79/0x730 [i915]
: [<f80ba72e>] ? intel_dp_link_down+0x2e/0x220 [i915]
: [<f80bcd5d>] ? intel_dp_dpms+0xad/0x100 [i915]
: [<f80b099d>] ironlake_crtc_prepare+0xd/0x10 [i915]
: [<f7f8e982>] drm_crtc_helper_set_mode+0x272/0x490 [drm_kms_helper]
: [<f7f8ec0d>] drm_helper_resume_force_mode+0x6d/0x140 [drm_kms_helper]
: [<f80b7e05>] intel_lid_notify+0x95/0xb0 [i915]
: [<c09589b3>] notifier_call_chain+0x43/0x60
: [<c0462051>] __blocking_notifier_call_chain+0x41/0x80
: [<c04620af>] blocking_notifier_call_chain+0x1f/0x30
: [<c06e499c>] acpi_lid_send_state+0x78/0xa4
: [<c06e4db2>] acpi_button_notify+0x37/0xa1
: [<c06c350a>] acpi_device_notify+0x16/0x18
: [<c06cec0b>] acpi_ev_notify_dispatch+0x33/0x4a
: [<c06c0a6c>] acpi_os_execute_deferred+0x20/0x2b
: [<c04559f0>] process_one_work+0x120/0x3e0
: [<c095c630>] ? common_interrupt+0x30/0x38
: [<c06c0a4c>] ? acpi_os_wait_events_complete+0x1e/0x1e
: [<c0457341>] worker_thread+0x111/0x3b0
: [<c046778e>] ? complete+0x4e/0x60
: [<c0457230>] ? manage_workers+0x2a0/0x2a0
: [<c045bd22>] kthread+0x72/0x80
: [<c045bcb0>] ? kthread_freezable_should_stop+0x60/0x60
: [<c095c63e>] kernel_thread_helper+0x6/0x10