toshiba_acpi and Toshiba Satellite R830-14f

Hi to everyone,
sorry for my poor english, I have a Toshiba Satellite R830-14F, linux mint 12 64bit, kernel 3.2.0-18 and video drivers from xorg-edgers ppa.

Laptop hardware is:
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b4)
00:1c.6 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev b4)
00:1d.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
01:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 07)
04:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
05:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)

I've added your ppa, i.e. ppa:keks9n/main, and loaded toshiba-acpi-fix v. 0.04
I think it's not updated for 3.2 kernels... the latest version is from http://schwieters.org/toshset/

However, I installed it and I got two different errors in dmesg output:

1-
[ 1.384043] ACPI Error: [GTF0] Namespace lookup failure, AE_NOT_FOUND (20110623/psargs-359)
[ 1.384048] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SAT0.PRT0._SDD] (Node ffff88024205ecd0), AE_NOT_FOUND (20110623/psparse-536)
[ 1.384062] ACPI Error: [GTF0] Namespace lookup failure, AE_NOT_FOUND (20110623/psargs-359)
[ 1.384065] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SAT0.PRT0._GTF] (Node ffff88024205ecf8), AE_NOT_FOUND (20110623/psparse-536)
[ 1.384215] ata1.00: ATA-9: M4-CT128M4SSD2, 0309, max UDMA/100
[ 1.384218] ata1.00: 250069680 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[ 1.384739] ACPI Error: [GTF0] Namespace lookup failure, AE_NOT_FOUND (20110623/psargs-359)
[ 1.384744] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SAT0.PRT0._SDD] (Node ffff88024205ecd0), AE_NOT_FOUND (20110623/psparse-536)
[ 1.384755] ACPI Error: [GTF0] Namespace lookup failure, AE_NOT_FOUND (20110623/psargs-359)
[ 1.384759] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SAT0.PRT0._GTF] (Node ffff88024205ecf8), AE_NOT_FOUND (20110623/psparse-536)

2-
[ 3.149678] toshiba_acpi: Toshiba Laptop ACPI Extras version experimental-dev-toshiba-test-5
[ 3.149680] toshiba_acpi: HCI method: \_SB_.VALZ.GHCI
[ 3.149966] ------------[ cut here ]------------
[ 3.149974] WARNING: at /build/buildd/linux-3.2.0/drivers/video/backlight/backlight.c:314 backlight_device_register+0x1bd/0x200()
[ 3.149976] Hardware name: SATELLITE R830
[ 3.149977] toshiba: invalid backlight type
[ 3.149979] Modules linked in: toshiba_acpi(O+) snd_timer snd_seq_device ath9k(+) snd toshiba_bluetooth(+) i915(+) mac80211 sparse_keymap drm_kms_helper ath9k_common ath9k_hw drm lp soundcore parport psmouse ath i2c_algo_bit snd_page_alloc cfg80211 serio_raw video mei(C) mac_hid e1000e sdhci_pci sdhci
[ 3.150002] Pid: 522, comm: modprobe Tainted: G C O 3.2.0-18-generic #28-Ubuntu
[ 3.150004] Call Trace:
[ 3.150010] [<ffffffff8106723f>] warn_slowpath_common+0x7f/0xc0
[ 3.150013] [<ffffffff81067336>] warn_slowpath_fmt+0x46/0x50
[ 3.150018] [<ffffffff813f3999>] ? dev_set_drvdata+0x39/0x50
[ 3.150022] [<ffffffff81365e9d>] backlight_device_register+0x1bd/0x200
[ 3.150027] [<ffffffffa02fa158>] ? toshiba_acpi_setup_keyboard+0x158/0x158 [toshiba_acpi]
[ 3.150031] [<ffffffffa02fa54e>] toshiba_acpi_init+0x3f6/0xea8 [toshiba_acpi]
[ 3.150035] [<ffffffff810427e3>] ? set_memory_nx+0x43/0x50
[ 3.150040] [<ffffffff81002040>] do_one_initcall+0x40/0x180
[ 3.150044] [<ffffffff810a87fe>] sys_init_module+0xbe/0x230
[ 3.150049] [<ffffffff81663742>] system_call_fastpath+0x16/0x1b
[ 3.150152] ---[ end trace 17a5806c81d30290 ]---
[ 3.167512] Linux video capture interface: v2.00

Do anyone have ideas about these two errors?

Then I downloaded and applied the patch for 3.2 kernel from http://schwieters.org/toshset/.
I successfully followed the instructions found at https://bugs.launchpad.net/ubuntu/+source/toshset/+bug/644898
(post #13).
But I got the same two errors... Why?

Thank you,
Riccardo