Description of problem:
Hellow.

I just finish to install the new version of fedora 20 and then i inicialite the system and its apear that error.

Additional info:
reporter:       libreport-2.2.3
WARNING: CPU: 0 PID: 245 at drivers/gpu/drm/i915/intel_display.c:861 intel_wait_for_vblank+0x1a0/0x1f0 [i915]()
vblank wait timed out
Modules linked in: i915(+) i2c_algo_bit drm_kms_helper sky2 drm i2c_core video
CPU: 0 PID: 245 Comm: systemd-udevd Not tainted 3.16.2-201.fc20.i686+PAE #1
Hardware name: SAMSUNG ELECTRONICS CO., LTD. R530/R730                  /R530/R730                  , BIOS 05JD.M017.20100325.KSJ 03/25/2010
 c0cb0907 c29f8b8f 00000000 f43b58f8 c0a1e55d f43b5938 f43b5928 c045e3ce
 f8356ed7 f43b5958 000000f5 f834d6a0 0000035d f82fdba0 f82fdba0 f69c8000
 00070040 00000003 f43b5944 c045e42e 00000009 f43b5938 f8356ed7 f43b5958
Call Trace:
 [<c0a1e55d>] dump_stack+0x41/0x52
 [<c045e3ce>] warn_slowpath_common+0x7e/0xa0
 [<f82fdba0>] ? intel_wait_for_vblank+0x1a0/0x1f0 [i915]
 [<f82fdba0>] ? intel_wait_for_vblank+0x1a0/0x1f0 [i915]
 [<c045e42e>] warn_slowpath_fmt+0x3e/0x60
 [<f82fdba0>] intel_wait_for_vblank+0x1a0/0x1f0 [i915]
 [<f8331372>] intel_tv_detect+0x1f2/0x570 [i915]
 [<f7f23748>] drm_helper_probe_single_connector_modes_merge_bits+0x248/0x350 [drm_kms_helper]
 [<c0474b93>] ? __queue_delayed_work+0x73/0x140
 [<c0474e88>] ? try_to_grab_pending+0x88/0x120
 [<f7f23867>] drm_helper_probe_single_connector_modes+0x17/0x20 [drm_kms_helper]
 [<f7f25281>] drm_fb_helper_probe_connector_modes.isra.3+0x41/0x60 [drm_kms_helper]
 [<f7f2625a>] drm_fb_helper_initial_config+0x15a/0xf00 [drm_kms_helper]
 [<f82ef299>] ? gen4_write32+0x49/0xc0 [i915]
 [<f82ef04f>] ? gen4_read32+0x3f/0xc0 [i915]
 [<f8313213>] ? intel_fbdev_init+0x193/0x510 [i915]
 [<f83135ac>] intel_fbdev_initial_config+0x1c/0x20 [i915]
 [<f8334c3d>] i915_driver_load+0xe6d/0xef0 [i915]
 [<f8331be0>] ? i915_switcheroo_set_state+0x90/0x90 [i915]
 [<c06c8c2a>] ? kobject_uevent_env+0x15a/0x560
 [<c06c8840>] ? kobj_ns_drop+0x50/0x50
 [<c07ca6e4>] ? get_device+0x14/0x30
 [<c07cf4f2>] ? klist_class_dev_get+0x12/0x20
 [<c0a172be>] ? klist_node_init+0x2e/0x50
 [<c0a17377>] ? klist_add_tail+0x27/0x30
 [<c07cbbb6>] ? device_add+0x1d6/0x5a0
 [<f818980e>] drm_dev_register+0x8e/0xe0 [drm]
 [<f818bea9>] drm_get_pci_dev+0x79/0x1c0 [drm]
 [<f82b4415>] i915_pci_probe+0x35/0x60 [i915]
 [<c070321f>] pci_device_probe+0x6f/0xc0
 [<c05ea3d5>] ? sysfs_create_link+0x25/0x40
 [<c07ce733>] driver_probe_device+0x93/0x3a0
 [<c05ea107>] ? sysfs_create_dir_ns+0x37/0x80
 [<c0703161>] ? pci_match_device+0xc1/0xe0
 [<c07ceaf1>] __driver_attach+0x71/0x80
 [<c07cea80>] ? __device_attach+0x40/0x40
 [<c07ccb67>] bus_for_each_dev+0x57/0xa0
 [<c07ce25e>] driver_attach+0x1e/0x20
 [<c07cea80>] ? __device_attach+0x40/0x40
 [<c07cdea7>] bus_add_driver+0x157/0x230
 [<f7f2f000>] ? 0xf7f2efff
 [<f7f2f000>] ? 0xf7f2efff
 [<c07cf1d9>] driver_register+0x59/0xe0
 [<c05777e6>] ? __kmalloc_track_caller+0x46/0x1f0
 [<c0701d92>] __pci_register_driver+0x32/0x40
 [<f818c0d5>] drm_pci_init+0xe5/0x110 [drm]
 [<f7f2f000>] ? 0xf7f2efff
 [<f7f2f088>] i915_init+0x88/0x8a [i915]
 [<f7f2f000>] ? 0xf7f2efff
 [<c0402132>] do_one_initcall+0xc2/0x1f0
 [<f7f2f000>] ? 0xf7f2efff
 [<c0574d5d>] ? kfree+0xdd/0x120
 [<c05644df>] ? __vunmap+0x8f/0xe0
 [<c05644df>] ? __vunmap+0x8f/0xe0
 [<c05644df>] ? __vunmap+0x8f/0xe0
 [<c04cead2>] load_module+0x1a92/0x23b0
 [<c04cb9a9>] ? copy_module_from_fd.isra.46+0x109/0x1a0
 [<c04cf58d>] SyS_finit_module+0x8d/0xd0
 [<c0549813>] ? vm_mmap_pgoff+0x93/0xb0
 [<c0a24ddf>] sysenter_do_call+0x12/0x12