Additional info:
libreport version: 2.0.14
abrt_version:   2.0.13
cmdline:        BOOT_IMAGE=/vmlinuz-3.6.1-1.fc17.x86_64 root=/dev/vg_davewacer/lv_root ro rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=latarcyrheb-sun16 rd.lvm.lv=vg_davewacer/lv_swap rd.lvm.lv=vg_davewacer/lv_root LANG=en_US.UTF-8 rd.luks=0 rhgb quiet
kernel:         3.6.1-1.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:1240 assert_plane+0x78/0x80 [i915]()
:Hardware name: TravelMate 5742
:plane B assertion failure (expected off, current on)
:Modules linked in: des_generic md4 nls_utf8 cifs dns_resolver fscache fuse ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle bridge stp llc be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 nf_conntrack_ipv4 nf_defrag_ipv4 cxgb3i cxgb3 mdio libcxgbi ip6t_REJECT ib_iser nf_conntrack_ipv6 nf_defrag_ipv6 rdma_cm ib_addr xt_state nf_conntrack iw_cm ib_cm ib_sa ib_mad ip6table_filter ib_core ip6_tables iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi iTCO_wdt iTCO_vendor_support coretemp arc4 acer_wmi sparse_keymap snd_hda_codec_hdmi snd_hda_codec_realtek uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core microcode videodev media snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm ath9k ath9k_common broadcom joydev snd_page_alloc ath9k_hw ath mac80211 i2c_i801 intel_ips cfg80211 rfkill lpc_ich mfd_core snd_timer tg3 snd soundcore mei binfmt_misc vhost_net tun macvtap macvlan kvm_intel kvm uinput nfsd auth_rp
:cgss nfs_acl lockd sunrpc crc32c_intel mxm_wmi wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core
:Pid: 914, comm: Xorg Tainted: G        W    3.6.1-1.fc17.x86_64 #1
:Call Trace:
: [<ffffffff8105b84f>] warn_slowpath_common+0x7f/0xc0
: [<ffffffff8105b946>] warn_slowpath_fmt+0x46/0x50
: [<ffffffffa0090dd8>] assert_plane+0x78/0x80 [i915]
: [<ffffffffa009a754>] intel_crtc_disable+0x54/0xb0 [i915]
: [<ffffffffa0065825>] drm_helper_disable_unused_functions+0x115/0x170 [drm_kms_helper]
: [<ffffffffa0067142>] drm_crtc_helper_set_config+0x942/0xb00 [drm_kms_helper]
: [<ffffffff8104a698>] ? flush_tlb_page+0x48/0xb0
: [<ffffffff81048dec>] ? ptep_set_access_flags+0x6c/0x70
: [<ffffffff81617fdd>] ? mutex_lock+0x1d/0x50
: [<ffffffffa0024a41>] drm_mode_setcrtc+0x121/0x590 [drm]
: [<ffffffffa00153c3>] drm_ioctl+0x4d3/0x580 [drm]
: [<ffffffffa0024920>] ? drm_mode_setplane+0x370/0x370 [drm]
: [<ffffffff811a0bc9>] do_vfs_ioctl+0x99/0x580
: [<ffffffff811a1149>] sys_ioctl+0x99/0xa0
: [<ffffffff816226e9>] system_call_fastpath+0x16/0x1b