Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 1 PID: 1021 at drivers/gpu/drm/drm_irq.c:1130 drm_wait_one_vblank+0xb0/0x170 [drm]()
vblank wait timed out on crtc 0
Modules linked in: fuse rndis_host cdc_ether usbnet uas usb_storage bnep bluetooth xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 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 arc4 rt2800pci rt2800mmio rt2800lib snd_hda_codec_realtek snd_hda_codec_generic rt2x00pci snd_hda_intel rt2x00mmio snd_hda_controller rt2x00lib mac80211 snd_hda_codec coretemp cfg80211 gpio_ich snd_hwdep eeprom_93cx6 crc_ccitt rfkill iTCO_wdt
 iTCO_vendor_support kvm_intel ppdev snd_seq kvm serio_raw snd_seq_device snd_pcm i2c_i801 lpc_ich snd_timer parport_pc tpm_tis tpm snd soundcore parport acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc i915 i2c_algo_bit video drm_kms_helper ata_generic pata_acpi drm r8169 mii
CPU: 1 PID: 1021 Comm: Xorg.bin Not tainted 3.19.2-201.fc21.i686 #1
Hardware name: langchao 12345/IPM41-D3, BIOS 080015  04/30/2010
 c0d039c7 27606f38 00000000 ef101cc8 c0a5d00f ef101d0c ef101cfc c045795b
 f7fad22c ef101d2c 000003fd f7fab4a3 0000046a f7f87b00 0000046a f7f87b00
 00000000 f3e27400 00000000 ef101d18 c04579ce 00000009 ef101d0c f7fad22c
Call Trace:
 [<c0a5d00f>] dump_stack+0x41/0x52
 [<c045795b>] warn_slowpath_common+0x8b/0xc0
 [<f7f87b00>] ? drm_wait_one_vblank+0xb0/0x170 [drm]
 [<f7f87b00>] ? drm_wait_one_vblank+0xb0/0x170 [drm]
 [<c04579ce>] warn_slowpath_fmt+0x3e/0x60
 [<f7f87b00>] drm_wait_one_vblank+0xb0/0x170 [drm]
 [<c04905b0>] ? wait_woken+0x80/0x80
 [<f813dcaf>] i9xx_crtc_disable+0x5f/0x410 [i915]
 [<f8125679>] ? gen4_write32+0x49/0xc0 [i915]
 [<f813f739>] intel_crtc_control+0x49/0x110 [i915]
 [<f813f850>] intel_crtc_update_dpms+0x50/0x60 [i915]
 [<f81567eb>] intel_crt_dpms+0x5b/0xa0 [i915]
 [<f7f8e582>] ? drm_mode_object_find+0x22/0x60 [drm]
 [<f7f94959>] drm_mode_obj_set_property_ioctl+0x409/0x430 [drm]
 [<f7f949bf>] drm_mode_connector_property_set_ioctl+0x3f/0x60 [drm]
 [<f7f94980>] ? drm_mode_obj_set_property_ioctl+0x430/0x430 [drm]
 [<f7f86065>] drm_ioctl+0x1f5/0x560 [drm]
 [<f7f94980>] ? drm_mode_obj_set_property_ioctl+0x430/0x430 [drm]
 [<c06e9028>] ? timerqueue_add+0x58/0xc0
 [<c04b3c9e>] ? enqueue_hrtimer+0x1e/0x70
 [<c04b4262>] ? __hrtimer_start_range_ns+0x302/0x4a0
 [<f7f85e70>] ? drm_getmap+0xc0/0xc0 [drm]
 [<c05a3e02>] do_vfs_ioctl+0x322/0x540
 [<c067bd02>] ? inode_has_perm.isra.30+0x32/0x50
 [<c067be67>] ? file_has_perm+0x97/0xa0
 [<c067ca8b>] ? selinux_file_ioctl+0x4b/0xe0
 [<c05a4080>] SyS_ioctl+0x60/0x90
 [<c0a626df>] sysenter_do_call+0x12/0x12