Additional info:
reporter:       libreport-2.1.12
WARNING: CPU: 0 PID: 3955 at drivers/gpu/drm/i915/intel_display.c:855 intel_wait_for_pipe_off+0xe5/0x1b0 [i915]()
pipe_off wait timed out
Modules linked in: fuse ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE bnep bluetooth 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 coretemp kvm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media iTCO_wdt arc4 ath9k ath9k_common ath9k_hw ath mac80211 snd_hda_codec_realtek snd_hda_intel snd_hda_codec iTCO_vendor_support atl1c microcode acer_wmi snd_hwdep cfg80211 joydev sparse_keymap rfkill serio_raw snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer wmi snd soundcore acpi_cpufreq lpc_ich i2c_i801 mfd_core uinput dm_crypt i915 i2c_algo_bit drm_kms_helper usb_storage drm i2c_core video
CPU: 0 PID: 3955 Comm: kworker/u8:17 Not tainted 3.13.5-101.fc19.i686.PAE #1
Hardware name: Acer AOD255E/JE02_PT_E, BIOS V3.16(DDR3) 04/22/2011
Workqueue: events_unbound async_run_entry_fn
 00000000 00000000 e1479d50 c09c2ddd e1479d90 e1479d80 c045605e f816258c
 e1479dac 00000f73 f81587b0 00000357 f8107365 f8107365 024aa3d0 f4fcd800
 00000001 e1479d98 c04560b3 00000009 e1479d90 f816258c e1479dac e1479db8
Call Trace:
 [<c09c2ddd>] dump_stack+0x41/0x52
 [<c045605e>] warn_slowpath_common+0x7e/0xa0
 [<f8107365>] ? intel_wait_for_pipe_off+0xe5/0x1b0 [i915]
 [<f8107365>] ? intel_wait_for_pipe_off+0xe5/0x1b0 [i915]
 [<c04560b3>] warn_slowpath_fmt+0x33/0x40
 [<f8107365>] intel_wait_for_pipe_off+0xe5/0x1b0 [i915]
 [<f81074be>] intel_disable_pipe+0x8e/0xa0 [i915]
 [<f810816b>] i9xx_crtc_disable+0xfb/0x2f0 [i915]
 [<f7f4beec>] ? drm_irq_uninstall+0xcc/0x190 [drm]
 [<f80d70c0>] i915_drm_freeze+0xc0/0x140 [i915]
 [<f80d7455>] i915_pm_suspend+0x35/0x80 [i915]
 [<c047f301>] ? ttwu_do_activate.constprop.87+0x51/0x60
 [<c06d3009>] pci_pm_suspend+0x59/0x120
 [<c09c6a1f>] ? wait_for_completion+0x1f/0xd0
 [<c06d2fb0>] ? pci_pm_freeze+0xb0/0xb0
 [<c079a8ea>] dpm_run_callback+0x3a/0x90
 [<c079ac52>] __device_suspend+0xb2/0x1f0
 [<c079adaf>] async_suspend+0x1f/0x90
 [<c0478d65>] async_run_entry_fn+0x35/0x140
 [<c0480f6f>] ? wake_up_process+0x1f/0x40
 [<c046cf25>] process_one_work+0x115/0x380
 [<c046b1b5>] ? start_worker+0x25/0x30
 [<c046d875>] ? manage_workers.isra.28+0x1a5/0x250
 [<c046da1e>] worker_thread+0xfe/0x330
 [<c046d920>] ? manage_workers.isra.28+0x250/0x250
 [<c04731d1>] kthread+0xa1/0xc0
 [<c09cff77>] ret_from_kernel_thread+0x1b/0x28
 [<c0473130>] ? insert_kthread_work+0x30/0x30