[  133.230901] WARNING: at /build/buildd/linux-2.6.31/fs/sysfs/dir.c:487 sysfs_add_one+0x98/0x100()
[  133.230908] Hardware name: LifeBook U810
[  133.230913] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:02.0/drm/card0/card0-VGA-1'
[  133.230919] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usbhid joydev fujitsu_usb_touchscreen binfmt_misc ppdev iptable_nat nf_nat nf_conn
track_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle snd_hda_codec_realtek arc4 pata_pcmcia ecb snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss sn
d_mixer_oss snd_pcm iptable_filter pcmcia snd_seq_dummy ip_tables x_tables uvcvideo videodev v4l1_compat psmouse serio_raw yenta_socket rsrc_nonstati
c pcmcia_core sdhci_pci sdhci fsc_btns ath5k mac80211 led_class ath cfg80211 fujitsu_laptop snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event s
nd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc lp parport usb_storage fbcon tileblit font bitblit softcursor 8139too 8139cp mii i915 dr
m i2c_algo_bit intel_agp agpgart video output [last unloaded: usbhid]
[  133.231062] Pid: 1049, comm: Xorg Not tainted 2.6.31-15-generic #50-Ubuntu
[  133.231068] Call Trace:
[  133.231082]  [<c014518d>] warn_slowpath_common+0x6d/0xa0
[  133.231091]  [<c023b3c8>] ? sysfs_add_one+0x98/0x100
[  133.231099]  [<c023b3c8>] ? sysfs_add_one+0x98/0x100
[  133.231108]  [<c0145206>] warn_slowpath_fmt+0x26/0x30
[  133.231116]  [<c023b3c8>] sysfs_add_one+0x98/0x100
[  133.231124]  [<c023b479>] create_dir+0x49/0x90
[  133.231132]  [<c023b4eb>] sysfs_create_dir+0x2b/0x40
[  133.231144]  [<c0312332>] kobject_add_internal+0x92/0x1d0
[  133.231159]  [<c0318256>] ? vsnprintf+0x206/0x400
[  133.231168]  [<c031256d>] kobject_add_varg+0x2d/0x50
[  133.231178]  [<c03a09ad>] ? T.492+0xd/0x10
[  133.231186]  [<c03125ec>] kobject_add+0x2c/0x60
[  133.231195]  [<c03a0a9b>] device_add+0xeb/0x360
[  133.231208]  [<c03a0d22>] device_register+0x12/0x20
[  133.231255]  [<f814cf98>] drm_sysfs_connector_add+0xa8/0x1d0 [drm]
[  133.231306]  [<f826319c>] intel_sdvo_output_setup+0x15c/0x330 [i915]
[  133.231346]  [<f8261b68>] ? intel_sdvo_read_response+0x48/0x90 [i915]
[  133.231387]  [<f8263b40>] intel_sdvo_detect+0x120/0x150 [i915]
[  133.231437]  [<f8152704>] drm_helper_probe_single_connector_modes+0x84/0x2a0 [drm]
[  133.231490]  [<f814f589>] ? drm_mode_object_find+0x49/0x60 [drm]
[  133.231534]  [<f8150a77>] drm_mode_getconnector+0x2d7/0x370 [drm]
[  133.231585]  [<f81466c0>] drm_ioctl+0x180/0x360 [drm]
[  133.231608]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.231646]  [<f81507a0>] ? drm_mode_getconnector+0x0/0x370 [drm]
[  133.231656]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.231669]  [<c02c7f8f>] ? security_file_permission+0xf/0x20
[  133.231688]  [<c01f51b3>] vfs_ioctl+0x73/0x90
[  133.231697]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.231706]  [<c01f5481>] do_vfs_ioctl+0x71/0x310
[  133.231716]  [<c01e75a0>] ? do_sync_write+0x0/0x100
[  133.231724]  [<c01f577f>] sys_ioctl+0x5f/0x80
[  133.231733]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.231742]  [<c010336c>] syscall_call+0x7/0xb
[  133.231751]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.231759]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.231766] ---[ end trace 82d83357dc86b271 ]---
[  133.231776] kobject_add_internal failed for card0-VGA-1 with -EEXIST, don't try to register things with the same name in the same directory.
[  133.231788] Pid: 1049, comm: Xorg Tainted: G        W  2.6.31-15-generic #50-Ubuntu
[  133.231793] Call Trace:
[  133.231801]  [<c056ea0c>] ? printk+0x18/0x1c
[  133.231811]  [<c03123dc>] kobject_add_internal+0x13c/0x1d0
[  133.231820]  [<c031256d>] kobject_add_varg+0x2d/0x50
[  133.231829]  [<c03a09ad>] ? T.492+0xd/0x10
[  133.231838]  [<c03125ec>] kobject_add+0x2c/0x60
[  133.231846]  [<c03a0a9b>] device_add+0xeb/0x360
[  133.231862]  [<c03a0d22>] device_register+0x12/0x20
[  133.231901]  [<f814cf98>] drm_sysfs_connector_add+0xa8/0x1d0 [drm]
[  133.231947]  [<f826319c>] intel_sdvo_output_setup+0x15c/0x330 [i915]
[  133.231986]  [<f8261b68>] ? intel_sdvo_read_response+0x48/0x90 [i915]
[  133.232008]  [<f8263b40>] intel_sdvo_detect+0x120/0x150 [i915]
[  133.232167]  [<f8152704>] drm_helper_probe_single_connector_modes+0x84/0x2a0 [drm]
[  133.232217]  [<f814f589>] ? drm_mode_object_find+0x49/0x60 [drm]
[  133.232260]  [<f8150a77>] drm_mode_getconnector+0x2d7/0x370 [drm]
[  133.232309]  [<f81466c0>] drm_ioctl+0x180/0x360 [drm]
[  133.232328]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.232366]  [<f81507a0>] ? drm_mode_getconnector+0x0/0x370 [drm]
[  133.232375]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.232387]  [<c02c7f8f>] ? security_file_permission+0xf/0x20
[  133.232405]  [<c01f51b3>] vfs_ioctl+0x73/0x90
[  133.232413]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.232422]  [<c01f5481>] do_vfs_ioctl+0x71/0x310
[  133.232431]  [<c01e75a0>] ? do_sync_write+0x0/0x100
[  133.232440]  [<c01f577f>] sys_ioctl+0x5f/0x80
[  133.232448]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.232457]  [<c010336c>] syscall_call+0x7/0xb
[  133.232465]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.232474]  [<c04c64a7>] ? ip_build_and_send_pkt+0x187/0x190
[  133.232484] [drm:drm_sysfs_connector_add] *ERROR* failed to register connector device: -17