[ 2551.199629] WARNING: at /build/buildd/linux-3.8.0/drivers/gpu/drm/i915/intel_dp.c:410 intel_dp_aux_ch+0x139/0x4f0 [i915]()
[ 2551.199630] Hardware name: 34352NG
[ 2551.199632] dp_aux_ch not started status 0xffffffff
[ 2551.199663] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) cast6_avx_x86_64(F) cast6_generic(F) cts(F) gcm(F) ccm(F) xfrm_user(F) ah6(F) ah4(F) esp6(F) esp4(F) xfrm4_mode_beet(F) xfrm4_tunnel(F) tunnel4(F) xfrm4_mode_tunnel(F) xfrm4_mode_transport(F) xfrm6_mode_transport(F) xfrm6_mode_ro(F) xfrm6_mode_beet(F) xfrm6_mode_tunnel(F) ipcomp(F) ipcomp6(F) xfrm6_tunnel(F) tunnel6(F) xfrm_ipcomp(F) deflate(F) zlib_deflate(F) ctr(F) twofish_generic(F) twofish_avx_x86_64(F) twofish_x86_64_3way(F) twofish_x86_64(F) twofish_common(F) camellia_generic(F) camellia_aesni_avx_x86_64(F) camellia_x86_64(F) serpent_avx_x86_64(F) serpent_sse2_x86_64(F) serpent_generic(F) glue_helper(F) blowfish_generic(F) blowfish_x86_64(F) blowfish_common(F) cast5_avx_x86_64(F) cast5_generic(F) cast_common(F)<6>[ 2551.199679] PM: suspend of devices complete after 651.842 msecs
[ 2551.199681]  des_generic(F) xcbc(F) rmd160(F) parport_pc(F) ppdev(F) crypto_null(F) af_key(F) xfrm_algo(F) bnep rfcomm bluetooth binfmt_misc(F) nls_iso8859_1(F) ext2(F) arc4(F) iwldvm snd_usb_audio snd_hda_codec_hdmi snd_hda_codec_realtek uvcvideo kvm_intel wacom videobuf2_vmalloc videobuf2_memops videobuf2_core snd_usbmidi_lib mac80211 kvm videodev joydev(F) snd_hda_intel snd_hda_codec ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) snd_hwdep(F) snd_pcm(F) thinkpad_acpi iwlwifi xts(F) snd_page_alloc(F) nvram(F) lrw(F) snd_seq_midi(F) gf128mul(F) snd_seq_midi_event(F) ablk_helper(F) snd_rawmidi(F) snd_seq(F) snd_seq_device(F) snd_timer(F) cryptd(F) i915 snd(F) drm_kms_helper drm coretemp lp(F) i2c_algo_bit soundcore(F) tpm_tis parport(F) psmouse(F) lpc_ich dm_multipath(F) cfg80211 mei mac_hid scsi_dh(F) serio_raw(F) microcode(F) wmi video(F) hid_generic usbhid hid usb_storage(F) ahci(F) libahci(F) dm_raid45 sdhci_pci sdhci e1000e(F) xor(F) dm_mirror(F) dm_region_hash(F) dm_log(F)
[ 2551.199687] Pid: 7303, comm: kworker/u:2 Tainted: GF       W  O 3.8.0-25-generic #37-Ubuntu
[ 2551.199687] Call Trace:
[ 2551.199689]  [<ffffffff810587ef>] warn_slowpath_common+0x7f/0xc0
[ 2551.199690]  [<ffffffff810588ec>] warn_slowpath_fmt+0x4c/0x50
[ 2551.199700]  [<ffffffffa02b6db9>] intel_dp_aux_ch+0x139/0x4f0 [i915]
[ 2551.199707]  [<ffffffffa02b7225>] intel_dp_aux_native_read_retry+0xb5/0x140 [i915]
[ 2551.199714]  [<ffffffffa024cc00>] ? drm_do_probe_ddc_edid+0x20/0x110 [drm]
[ 2551.199722]  [<ffffffffa02b7d0d>] intel_dp_get_dpcd+0x1d/0x60 [i915]
[ 2551.199728]  [<ffffffffa02b7d6d>] intel_dp_detect_dpcd+0x1d/0x100 [i915]
[ 2551.199735]  [<ffffffffa02b8bd7>] intel_dp_detect+0x77/0x2d0 [i915]
[ 2551.199737]  [<ffffffff81352739>] ? snprintf+0x39/0x40
[ 2551.199741]  [<ffffffffa0187922>] drm_helper_hpd_irq_event+0xb2/0x140 [drm_kms_helper]
[ 2551.199747]  [<ffffffffa02831eb>] i915_hotplug_work_func+0x8b/0xa0 [i915]
[ 2551.199748]  [<ffffffff8107677c>] process_one_work+0x15c/0x4d0
[ 2551.199750]  [<ffffffff81077fde>] worker_thread+0x16e/0x480
[ 2551.199751]  [<ffffffff81077e70>] ? manage_workers+0x2a0/0x2a0
[ 2551.199752]  [<ffffffff8107d370>] kthread+0xc0/0xd0
[ 2551.199753]  [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120
[ 2551.199755]  [<ffffffff816d3fac>] ret_from_fork+0x7c/0xb0
[ 2551.199756]  [<ffffffff8107d2b0>] ? kthread_create_on_node+0x120/0x120