Additional info:
reporter:       libreport-2.2.3
WARNING: CPU: 1 PID: 1198 at drivers/gpu/drm/i915/intel_uncore.c:47 assert_device_not_suspended.isra.8+0x4b/0x50 [i915]()
Device suspended
Modules linked in: cpufreq_stats vfat fat fuse ipt_MASQUERADE xt_CHECKSUM tun ip6t_rpfilter 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 snd_hda_codec_conexant snd_hda_codec_generic iTCO_wdt iTCO_vendor_support arc4 x86_pkg_temp_thermal snd_hda_intel coretemp iwldvm snd_hda_controller kvm_intel snd_hda_codec mac80211 snd_hwdep uvcvideo kvm snd_seq videobuf2_vmalloc videobuf2_memops snd_seq_device videobuf2_core v4l2_common iwlwifi snd_pcm videodev sdhci_pci microcode media sdhci
joydev cfg80211 serio_raw mmc_core e1000e i2c_i801 thinkpad_acpi mei_me snd_timer lpc_ich mei snd shpchp ptp mfd_core wmi pps_core tpm_tis soundcore rfkill tpm nfsd auth_rpcgss nfs_acl lockd sunrpc dm_crypt crct10dif_pclmul crc32_pclmul crc32c_intel i915 ghash_clmulni_intel i2c_algo_bit drm_kms_helper uas drm usb_storage i2c_core video
CPU: 1 PID: 1198 Comm: Xorg Not tainted 3.16.2-200.fc20.x86_64 #1
Hardware name: LENOVO 4174GM3/4174GM3, BIOS 8CET57WW (1.37 ) 04/11/2013
0000000000000000 00000000078f181e ffff880204bbfa70 ffffffff81706ce1
ffff880204bbfab8 ffff880204bbfaa8 ffffffff8108d0ad ffff880037620000
00000000000e1180 ffff88021243e000 ffff880037620080 0000000000000001
Call Trace:
[<ffffffff81706ce1>] dump_stack+0x45/0x56
[<ffffffff8108d0ad>] warn_slowpath_common+0x7d/0xa0
[<ffffffff8108d12c>] warn_slowpath_fmt+0x5c/0x80
[<ffffffffa00f058b>] assert_device_not_suspended.isra.8+0x4b/0x50 [i915]
[<ffffffffa00f1ea5>] gen6_read32+0x35/0x110 [i915]
[<ffffffffa012f4a0>] intel_lvds_compute_config+0x60/0x160 [i915]
[<ffffffffa01086d4>] __intel_set_mode+0xbb4/0x1590 [i915]
[<ffffffff812813a4>] ? ext4_dirty_inode+0x54/0x60
[<ffffffffa010b756>] intel_set_mode+0x16/0x30 [i915]
[<ffffffffa010c68d>] intel_crtc_set_config+0x8ed/0xdb0 [i915]
[<ffffffffa004e6a1>] drm_mode_set_config_internal+0x61/0xe0 [drm]
[<ffffffffa0051f48>] drm_mode_setcrtc+0xe8/0x5c0 [drm]
[<ffffffffa0042a6c>] drm_ioctl+0x1ec/0x660 [drm]
[<ffffffff81206820>] do_vfs_ioctl+0x2e0/0x4a0
[<ffffffff81206a61>] SyS_ioctl+0x81/0xa0
[<ffffffff81125ec6>] ? __audit_syscall_exit+0x1f6/0x2a0
[<ffffffff8170e329>] system_call_fastpath+0x16/0x1b