Bug 795223

Description of problem:

Upon booting the kernel complains (snipped from /var/log/messages)

...etc...
Feb 16 07:29:33 wantowen kernel: [   31.876876] [Firmware Bug]: ACPI(MXM3) defines _DOD but not _DOS
Feb 16 07:29:33 wantowen kernel: [   31.877135] [Firmware Bug]: ACPI: ACPI brightness control misses _BQC function
Feb 16 07:29:33 wantowen kernel: [   31.877154] [Firmware Bug]: ACPI: ACPI brightness control misses _BQC function
Feb 16 07:29:33 wantowen kernel: [   31.883717] acpi device:02: registered as cooling_device12
Feb 16 07:29:33 wantowen kernel: [   31.884140] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:01/LNX
VIDEO:00/input/input4
Feb 16 07:29:33 wantowen kernel: [   31.884172] ACPI: Video Device [MXM3] (multi-head: yes  rom: no  post: no)
Feb 16 07:29:33 wantowen kernel: [   31.884189] [Firmware Bug]: ACPI(MXM3) defines _DOD but not _DOS
Feb 16 07:29:33 wantowen kernel: [   31.884191] ------------[ cut here ]------------
Feb 16 07:29:33 wantowen kernel: [   31.884195] WARNING: at fs/proc/generic.c:583 proc_register+0x158/0x195()
Feb 16 07:29:33 wantowen kernel: [   31.884196] Hardware name: X7200                           
Feb 16 07:29:33 wantowen kernel: [   31.884198] proc_dir_entry 'video/MXM3' already registered
Feb 16 07:29:33 wantowen kernel: [   31.884198] Modules linked in: crc_itu_t video(+) output
Feb 16 07:29:33 wantowen kernel: [   31.884202] Pid: 294, comm: modprobe Not tainted 2.6.35.14-95.fc14.x86_64 #1
Feb 16 07:29:33 wantowen kernel: [   31.884203] Call Trace:
Feb 16 07:29:33 wantowen kernel: [   31.884207]  [<ffffffff8104dd31>] warn_slowpath_common+0x85/0x9d
Feb 16 07:29:33 wantowen kernel: [   31.884209]  [<ffffffff8104ddec>] warn_slowpath_fmt+0x46/0x48
Feb 16 07:29:33 wantowen kernel: [   31.884211]  [<ffffffff81165a4f>] proc_register+0x158/0x195
Feb 16 07:29:33 wantowen kernel: [   31.884213]  [<ffffffff8116611a>] proc_mkdir_mode+0x42/0x5a
Feb 16 07:29:33 wantowen kernel: [   31.884215]  [<ffffffff81166148>] proc_mkdir+0x16/0x18
Feb 16 07:29:33 wantowen kernel: [   31.884218]  [<ffffffffa000d9ac>] acpi_video_bus_add+0x289/0x1029 [video]
Feb 16 07:29:33 wantowen kernel: [   31.884222]  [<ffffffff8146a744>] ? mutex_unlock+0x1b/0x1d
Feb 16 07:29:33 wantowen kernel: [   31.884224]  [<ffffffff8116f9b5>] ? sysfs_addrm_finish+0x2f/0xb9
Feb 16 07:29:33 wantowen kernel: [   31.884226]  [<ffffffff8116fca8>] ? sysfs_add_one+0x21/0xf8
Feb 16 07:29:33 wantowen kernel: [   31.884227]  [<ffffffff8146a886>] ? mutex_lock+0x29/0x50
Feb 16 07:29:33 wantowen kernel: [   31.884230]  [<ffffffff81170537>] ? sysfs_do_create_link+0x144/0x18c
Feb 16 07:29:33 wantowen kernel: [   31.884233]  [<ffffffff8126972b>] acpi_device_probe+0x50/0x122
Feb 16 07:29:33 wantowen kernel: [   31.884237]  [<ffffffff812d8f2f>] driver_probe_device+0x14b/0x271
Feb 16 07:29:33 wantowen kernel: [   31.884239]  [<ffffffff812d90b2>] __driver_attach+0x5d/0x81
Feb 16 07:29:33 wantowen kernel: [   31.884241]  [<ffffffff812d9055>] ? __driver_attach+0x0/0x81
Feb 16 07:29:33 wantowen kernel: [   31.884243]  [<ffffffff812d7e33>] bus_for_each_dev+0x56/0x82
Feb 16 07:29:33 wantowen kernel: [   31.884245]  [<ffffffff812d8b00>] driver_attach+0x1e/0x20
Feb 16 07:29:33 wantowen kernel: [   31.884246]  [<ffffffff812d86da>] bus_add_driver+0xf1/0x25e
Feb 16 07:29:33 wantowen kernel: [   31.884249]  [<ffffffff812d9316>] driver_register+0x9b/0x108
Feb 16 07:29:33 wantowen kernel: [   31.884251]  [<ffffffff81269d31>] acpi_bus_register_driver+0x43/0x45
Feb 16 07:29:33 wantowen kernel: [   31.884254]  [<ffffffffa000e7dc>] acpi_video_register+0x49/0x75 [video]
Feb 16 07:29:33 wantowen kernel: [   31.884256]  [<ffffffffa0014085>] acpi_video_init+0x73/0x75 [video]
Feb 16 07:29:33 wantowen kernel: [   31.884260]  [<ffffffff8106aeac>] ? __blocking_notifier_call_chain+0x56/0x60
Feb 16 07:29:33 wantowen kernel: [   31.884263]  [<ffffffffa0014012>] ? acpi_video_init+0x0/0x75 [video]
Feb 16 07:29:33 wantowen kernel: [   31.884266]  [<ffffffff810021a1>] do_one_initcall+0x5e/0x155
Feb 16 07:29:33 wantowen kernel: [   31.884269]  [<ffffffff8107d1bd>] sys_init_module+0xa6/0x1e4
Feb 16 07:29:33 wantowen kernel: [   31.884272]  [<ffffffff81009cb2>] system_call_fastpath+0x16/0x1b
Feb 16 07:29:33 wantowen kernel: [   31.884273] ---[ end trace d989bc528ab81502 ]---
Feb 16 07:29:33 wantowen kernel: [   31.888700] acpi device:08: registered as cooling_device13
Feb 16 07:29:33 wantowen kernel: [   31.889141] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:07/LNX
VIDEO:01/input/input5
Feb 16 07:29:33 wantowen kernel: [   31.889181] ACPI: Video Device [MXM3] (multi-head: yes  rom: no  post: no)
Feb 16 07:29:33 wantowen kernel: [   31.891577] firewire_ohci 0000:08:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
Feb 16 07:29:33 wantowen kernel: [   31.892626] sdhci: Secure Digital Host Controller Interface driver
Feb 16 07:29:33 wantowen kernel: [   31.892628] sdhci: Copyright(c) Pierre Ossman
Feb 16 07:29:33 wantowen kernel: [   31.893563] sdhci-pci 0000:0a:00.2: SDHCI controller found [197b:2391] (rev 90)
Feb 16 07:29:33 wantowen kernel: [   31.893600] sdhci-pci 0000:0a:00.2: PCI INT B -> GSI 16 (level, low) -> IRQ 16
Feb 16 07:29:33 wantowen kernel: [   31.893735] mmc0: SDHCI controller on PCI [0000:0a:00.2] using DMA
Feb 16 07:29:33 wantowen kernel: [   31.946072] usb 4-2: New USB device found, idVendor=147e, idProduct=1001
Feb 16 07:29:33 wantowen kernel: [   31.946076] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Feb 16 07:29:33 wantowen kernel: [   31.946080] usb 4-2: Product: Fingerprint Sensor   
Feb 16 07:29:33 wantowen kernel: [   31.946082] usb 4-2: Manufacturer: TouchStrip        
...etc...


Version-Release number of selected component (if applicable):

$ uname -a
Linux wantowen 2.6.35.14-95.fc14.x86_64 #1 SMP Tue Aug 16 21:01:58 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux


How reproducible:

on every boot.

Steps to Reproduce:
1. /sbin/reboot
2. see the /var/log/messages
3.
  
Actual results:


Expected results:


Additional info:

Otherwise the machine is operable and happy.
I have dual-screen setup, it is working fine.