j'ai essayé de rajouter acpi_backlight=vendor acpi_osi=Linux à /etc/default/grub ; sans effet/
je m'oriente de plus en plus vers un problème avec ACPI.
dmesg | grep ACPI
[ 0.000000] BIOS-e820: [mem 0x00000000aaf22000-0x00000000aaf86fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000aaf8a000-0x00000000aafe7fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000aaffd000-0x00000000aaffffff] ACPI data
[ 0.000000] ACPI: RSDP 00000000000f0430 00024 (v02 _ASUS_)
[ 0.000000] ACPI: XSDT 00000000aaffee18 00074 (v01 _ASUS_ Notebook 06222004 MSFT 00010013)
[ 0.000000] ACPI: FACP 00000000aaf9ad98 000F4 (v04 _ASUS_ Notebook 06222004 MSFT 00010013)
[ 0.000000] ACPI Warning: 32/64 FACS address mismatch in FADT - two FACS tables! (20130117/tbfadt-395)
[ 0.000000] ACPI BIOS Bug: Warning: 32/64X FACS address mismatch in FADT - 0xAAFE4E40/0x00000000AAFE4D40, using 32 (20130117/tbfadt-522)
[ 0.000000] ACPI: DSDT 00000000aaf67018 12DFA (v01 _ASUS_ Notebook 00000000 INTL 20091112)
[ 0.000000] ACPI: FACS 00000000aafe4e40 00040
[ 0.000000] ACPI: APIC 00000000aaffdf18 000CC (v02 _ASUS_ Notebook 06222004 MSFT 00010013)
[ 0.000000] ACPI: DBGP 00000000aaffff18 00034 (v01 _ASUS_ Notebook 06222004 MSFT 00010013)
[ 0.000000] ACPI: ECDT 00000000aafe4b18 000C1 (v01 _ASUS_ Notebook 06222004 AMI. 00000003)
[ 0.000000] ACPI: SLIC 00000000aaf9be18 00176 (v01 _ASUS_ Notebook 06222004 ASUS 00000001)
[ 0.000000] ACPI: HPET 00000000aafe5d18 00038 (v01 _ASUS_ Notebook 06222004 AMI. 00000003)
[ 0.000000] ACPI: MCFG 00000000aafe5c98 0003C (v01 _ASUS_ Notebook 06222004 MSFT 00000097)
[ 0.000000] ACPI: SSDT 00000000aaf86818 007C9 (v01 PmRef Cpu0Ist 00003000 INTL 20091112)
[ 0.000000] ACPI: SSDT 00000000aaf85018 00996 (v01 PmRef CpuPm 00003000 INTL 20091112)
[ 0.000000] ACPI: ASF! 00000000aafe4a18 000A0 (v32 INTEL HCG 00000001 TFSM 000F4240)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x04] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x06] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x07] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x08] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x09] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0a] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0b] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0c] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0d] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0e] disabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x10] lapic_id[0x0f] disabled)
[ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[ 0.004897] ACPI: Core revision 20130117
[ 0.012503] ACPI: All ACPI Tables successfully acquired
[ 0.111462] PM: Registering ACPI NVS region [mem 0xaaf22000-0xaaf86fff] (413696 bytes)
[ 0.111470] PM: Registering ACPI NVS region [mem 0xaaf8a000-0xaafe7fff] (385024 bytes)
[ 0.112343] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[ 0.112345] ACPI: bus type PCI registered
[ 0.121850] ACPI: Added _OSI(Module Device)
[ 0.121851] ACPI: Added _OSI(Processor Device)
[ 0.121853] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.121854] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.123841] ACPI: EC: EC description table is found, configuring boot EC
[ 0.123845] ACPI: EC: Look up EC in DSDT
[ 0.125980] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.133145] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.234168] ACPI: SSDT 00000000aadca718 00694 (v01 PmRef Cpu0Cst 00003001 INTL 20091112)
[ 0.234668] ACPI: Dynamic OEM Table Load:
[ 0.234670] ACPI: SSDT (null) 00694 (v01 PmRef Cpu0Cst 00003001 INTL 20091112)
[ 0.237799] ACPI: SSDT 00000000aadcba98 00303 (v01 PmRef ApIst 00003000 INTL 20091112)
[ 0.238318] ACPI: Dynamic OEM Table Load:
[ 0.238320] ACPI: SSDT (null) 00303 (v01 PmRef ApIst 00003000 INTL 20091112)
[ 0.240698] ACPI: SSDT 00000000aadc9d98 00119 (v01 PmRef ApCst 00003000 INTL 20091112)
[ 0.241190] ACPI: Dynamic OEM Table Load:
[ 0.241192] ACPI: SSDT (null) 00119 (v01 PmRef ApCst 00003000 INTL 20091112)
[ 0.244137] ACPI: Interpreter enabled
[ 0.244144] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20130117/hwxface-568)
[ 0.244148] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20130117/hwxface-568)
[ 0.244161] ACPI: (supports S0 S3 S4 S5)
[ 0.244162] ACPI: Using IOAPIC for interrupt routing
[ 0.244187] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.402430] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
[ 0.402998] pci 0000:00:01.0: System wakeup disabled by ACPI
[ 0.403496] pci 0000:00:1a.0: System wakeup disabled by ACPI
[ 0.403639] pci 0000:00:1b.0: System wakeup disabled by ACPI
[ 0.403854] pci 0000:00:1c.0: System wakeup disabled by ACPI
[ 0.404070] pci 0000:00:1c.1: System wakeup disabled by ACPI
[ 0.404231] pci 0000:00:1c.5: System wakeup disabled by ACPI
[ 0.404411] pci 0000:00:1d.0: System wakeup disabled by ACPI
[ 0.406798] pci 0000:03:00.0: System wakeup disabled by ACPI
[ 0.408634] pci 0000:04:00.0: System wakeup disabled by ACPI
[ 0.410411] acpi PNP0A08:00: ACPI _OSC support notification failed, disabling PCIe ASPM
[ 0.461076] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12)
[ 0.461126] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 12)
[ 0.461173] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 10 12)
[ 0.461219] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 10 12)
[ 0.461268] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 12) *0, disabled.
[ 0.461315] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 12) *0, disabled.
[ 0.461362] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 7 10 12)
[ 0.461409] ACPI: PCI Interrupt Link [LNKH] (IRQs *3 4 5 6 7 10 12)
[ 0.461710] ACPI: Enabled 3 GPEs in block 00 to 3F
[ 0.461830] ACPI: EC: GPE = 0x1b, I/O: command/status = 0x66, data = 0x62
[ 0.461962] ACPI: No dock devices found.
[ 0.462090] ACPI: bus type ATA registered
[ 0.462145] ACPI: bus type USB registered
[ 0.462230] PCI: Using ACPI for IRQ routing
[ 0.470796] pnp: PnP ACPI init
[ 0.470809] ACPI: bus type PNP registered
[ 0.520206] pnp 00:00: Plug and Play ACPI device, IDs PNP0200 (active)
[ 0.520226] pnp 00:01: Plug and Play ACPI device, IDs INT0800 (active)
[ 0.520312] pnp 00:02: Plug and Play ACPI device, IDs PNP0103 (active)
[ 0.520341] pnp 00:03: Plug and Play ACPI device, IDs PNP0c04 (active)
[ 0.520404] system 00:04: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.520425] pnp 00:05: Plug and Play ACPI device, IDs PNP0b00 (active)
[ 0.520461] system 00:06: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[ 0.520489] system 00:07: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.520535] pnp 00:08: Plug and Play ACPI device, IDs ETD0101 PNP0f0e PNP0f03 PNP0f12 PNP0f0b PNP0f13 (active)
[ 0.520565] pnp 00:09: Plug and Play ACPI device, IDs PNP0303 PNP030b (active)
[ 0.520796] system 00:0a: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.520861] system 00:0b: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.520981] system 00:0c: Plug and Play ACPI device, IDs PNP0c01 (active)
[ 0.520998] pnp: PnP ACPI: found 13 devices
[ 0.520999] ACPI: bus type PNP unregistered
[ 1.132828] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 1.191660] ACPI: AC Adapter [AC0] (on-line)
[ 1.201723] ACPI: Lid Switch [LID]
[ 1.201758] ACPI: Sleep Button [SLPB]
[ 1.201786] ACPI: Power Button [PWRF]
[ 1.201842] ACPI: Requesting acpi_cpufreq
[ 1.254909] ACPI: Thermal Zone [THRM] (51 C)
[ 1.266129] ACPI: Battery Slot [BAT0] (battery present)
[ 1.577005] ata2.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 1.577223] ata2.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded
[ 1.577227] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 1.579167] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 1.579414] ata1.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded
[ 1.579426] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 1.579531] ata3.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded
[ 1.579535] ata3.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 1.585519] ata3.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded
[ 1.585530] ata3.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 1.626950] ata2.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 1.627330] ata2.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded
[ 1.627341] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 1.634232] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 1.634562] ata1.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded
[ 1.634573] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 1.849143] ACPI Error: Needed [Buffer/String/Package], found [Integer] ffff8801c2020d80 (20130117/exresop-590)
[ 1.849148] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20130117/dswexec-460)
[ 1.849152] ACPI Error: Method parse/execution failed [\_SB_.PCI0.GFX0._DSM] (Node ffff8801c687cbb8), AE_AML_OPERAND_TYPE (20130117/psparse-537)
[ 1.849305] ACPI Error: Needed [Buffer/String/Package], found [Integer] ffff8801c3624630 (20130117/exresop-590)
[ 1.849310] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20130117/dswexec-460)
[ 1.849316] ACPI Error: Method parse/execution failed [\_SB_.PCI0.GFX0._DSM] (Node ffff8801c687cbb8), AE_AML_OPERAND_TYPE (20130117/psparse-537)
[ 1.849325] ACPI Error: Method parse/execution failed [\_SB_.PCI0.PEG0.GFX0._DSM] (Node ffff8801c6891230), AE_AML_OPERAND_TYPE (20130117/psparse-537)
[ 2.653474] ACPI: Video Device [GFX0] (multi-head: yes rom: yes post: no)
[ 2.657707] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 2.670628] nouveau [ VBIOS][0000:01:00.0] checking ACPI for image...
[ 2.941514] nouveau [ VBIOS][0000:01:00.0] using image from ACPI
[ 12.749405] ACPI Warning: 0x000000000000e040-0x000000000000e05f SystemIO conflicts with Region \SMB0 1 (20130117/utaddress-251)
[ 12.749414] ACPI Warning: 0x000000000000e040-0x000000000000e05f SystemIO conflicts with Region \_SB_.PCI0.SBUS.SMBI 2 (20130117/utaddress-251)
[ 12.749419] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.053612] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \GPIS 1 (20130117/utaddress-251)
[ 13.053618] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \PMIO 2 (20130117/utaddress-251)
[ 13.053622] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.053626] ACPI Warning: 0x0000000000000540-0x000000000000054f SystemIO conflicts with Region \GPIO 1 (20130117/utaddress-251)
[ 13.053629] ACPI Warning: 0x0000000000000540-0x000000000000054f SystemIO conflicts with Region \GP01 2 (20130117/utaddress-251)
[ 13.053631] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.053632] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GPIO 1 (20130117/utaddress-251)
[ 13.053635] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GP01 2 (20130117/utaddress-251)
[ 13.053637] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.053639] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GPIO 1 (20130117/utaddress-251)
[ 13.053641] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GP01 2 (20130117/utaddress-251)
[ 13.053644] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 14.337713] ACPI Error: [IIA0] Namespace lookup failure, AE_ALREADY_EXISTS (20130117/dsfield-211)
[ 14.337725] ACPI Error: Method parse/execution failed [\_SB_.ATKD.WMNB] (Node ffff8801c68840c8), AE_ALREADY_EXISTS (20130117/psparse-537)
[ 14.337833] ACPI: Marking method WMNB as Serialized because of AE_ALREADY_EXISTS error
[ 26.829416] pci 0000:01:00.0: power state changed by ACPI to D3cold