Description of problem: Undock'ed X220 from it's UltraDock which has a 24"monitor plugged into it and shut laptop to put it to sleep. Took laptop out on train to do some work and it was powered off. This has been happening since 3.11.x on Fedora 20. Additional info: reporter: libreport-2.1.9 WARNING: CPU: 1 PID: 1008 at drivers/gpu/drm/i915/intel_dp.c:2244 intel_dp_link_down+0x1b2/0x1e0 [i915]() Modules linked in: tun fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack fcoe libfcoe libfc 8021q garp mrp scsi_transport_fc scsi_tgt 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 bnep snd_hda_codec_hdmi snd_hda_codec_conexant iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal coretemp kvm_intel kvm arc4 iwldvm microcode mac80211 hid_lenovo_tpkbd snd_usb_audio uvcvideo snd_usbmidi_lib videobuf2_vmalloc snd_rawmidi videobuf2_memops videobuf2_core videodev serio_raw snd_hda_intel media iwlwifi snd_hda_codec snd_hwdep btusb snd_seq bluetooth snd_seq_device sdhci_pci snd_pcm sdhci mmc_core lpc_ich cfg80211 mfd_core i2c_i801 e1000e mei_me mei snd_page_alloc snd_timer ptp pps_core shpchp thinkpad_acpi snd soundcore rfkill wmi mperf binfmt_misc dm_crypt i915 crc32_pclmul crc32c_intel ghash_clmulni_intel i2c_algo_bit drm_kms_helper drm i2c_core video ecryptfs encrypted_keys trusted tpm tpm_bios CPU: 1 PID: 1008 Comm: Xorg Not tainted 3.11.7-300.fc20.x86_64 #1 Hardware name: LENOVO 4286CTO/4286CTO, BIOS 8DET52WW (1.22 ) 09/15/2011 0000000000000009 ffff8803f5a77bf0 ffffffff8164350b 0000000000000000 ffff8803f5a77c28 ffffffff8106715d ffff8804047c10c0 ffff8804044c4000 ffff8804078db000 0000000080580344 ffff880404e6e000 ffff8803f5a77c38 Call Trace: [<ffffffff8164350b>] dump_stack+0x45/0x56 [<ffffffff8106715d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8106723a>] warn_slowpath_null+0x1a/0x20 [<ffffffffa0109ca2>] intel_dp_link_down+0x1b2/0x1e0 [i915] [<ffffffffa010c438>] intel_disable_dp+0x68/0x70 [i915] [<ffffffffa00f7bca>] ironlake_crtc_disable+0x18a/0x8c0 [i915] [<ffffffffa00fbfef>] intel_crtc_update_dpms+0x6f/0xa0 [i915] [<ffffffffa00fc0ba>] intel_encoder_dpms+0x1a/0x30 [i915] [<ffffffffa00ff496>] intel_connector_dpms+0x36/0x50 [i915] [<ffffffffa006ff88>] drm_mode_obj_set_property_ioctl+0x308/0x320 [drm] [<ffffffffa006ffd0>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm] [<ffffffffa005f142>] drm_ioctl+0x532/0x660 [drm] [<ffffffff811b9e7d>] do_vfs_ioctl+0x2dd/0x4b0 [<ffffffff811a8047>] ? vfs_read+0xf7/0x170 [<ffffffff811ba0d1>] SyS_ioctl+0x81/0xa0 [<ffffffff81652719>] system_call_fastpath+0x16/0x1b
Created attachment 824182 [details] File: dmesg
*** This bug has been marked as a duplicate of bug 889220 ***