Related dmesg content. $ sudo dmesg | grep -iE 'backlight|acpi|video|i915'. [ 0.000000] BIOS-e820: [mem 0x000000009448e000-0x000000009449cfff] ACPI data [ 0.000000] BIOS-e820: [mem 0x000000009d575000-0x000000009d575fff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x00000000ab772000-0x00000000ab7aafff] ACPI data [ 0.000000] BIOS-e820: [mem 0x00000000ab7ab000-0x00000000abe0ffff] ACPI NVS [ 0.000000] efi: ACPI=0xab77e000 ACPI 2.0=0xab77e000 SMBIOS=0xac272000 TPMFinalLog=0xabab2000 ESRT=0xac1c9698 SMBIOS 3.0=0xac271000 MEMATTR=0xa83fb098 MOKvar=0xac26f000 INITRD=0x9d60e518 TPMEventLog=0x9448e018 [ 0.013830] ACPI: Early table checksum verification disabled [ 0.013834] ACPI: RSDP 0x00000000AB77E000 000024 (v02 DELL ) [ 0.013840] ACPI: XSDT 0x00000000AB77E0A8 0000D4 (v01 DELL CBX3 01072009 AMI 00010013) [ 0.013848] ACPI: FACP 0x00000000AB79DB58 00010C (v05 DELL CBX3 01072009 AMI 00010013) [ 0.013856] ACPI: DSDT 0x00000000AB77E210 01F948 (v02 DELL CBX3 01072009 INTL 20120913) [ 0.013861] ACPI: FACS 0x00000000ABE0DE80 000040 [ 0.013865] ACPI: APIC 0x00000000AB79DC68 000084 (v03 DELL CBX3 01072009 AMI 00010013) [ 0.013869] ACPI: FPDT 0x00000000AB79DCF0 000044 (v01 DELL CBX3 01072009 AMI 00010013) [ 0.013873] ACPI: MCFG 0x00000000AB79DD38 00003C (v01 DELL CBX3 01072009 MSFT 00000097) [ 0.013878] ACPI: HPET 0x00000000AB79DD78 000038 (v01 DELL CBX3 01072009 AMI. 0005000B) [ 0.013882] ACPI: SSDT 0x00000000AB79DDB0 00046D (v01 SataRe SataTabl 00001000 INTL 20120913) [ 0.013887] ACPI: LPIT 0x00000000AB79E220 000094 (v01 INTEL SKL-ULT 00000000 MSFT 0000005F) [ 0.013891] ACPI: SSDT 0x00000000AB79E2B8 000248 (v02 INTEL sensrhub 00000000 INTL 20120913) [ 0.013895] ACPI: SSDT 0x00000000AB79E500 002BAE (v02 INTEL PtidDevc 00001000 INTL 20120913) [ 0.013900] ACPI: SSDT 0x00000000AB7A10B0 000814 (v02 INTEL xh_rvp07 00000000 INTL 20120913) [ 0.013904] ACPI: DBGP 0x00000000AB7A18C8 000034 (v01 INTEL 00000000 MSFT 0000005F) [ 0.013909] ACPI: DBG2 0x00000000AB7A1900 000054 (v00 INTEL 00000000 MSFT 0000005F) [ 0.013913] ACPI: SSDT 0x00000000AB7A1958 0035DA (v02 SaSsdt SaSsdt 00003000 INTL 20120913) [ 0.013918] ACPI: UEFI 0x00000000AB7A4F38 000042 (v01 00000000 00000000) [ 0.013922] ACPI: SSDT 0x00000000AB7A4F80 000E73 (v02 CpuRef CpuSsdt 00003000 INTL 20120913) [ 0.013926] ACPI: SSDT 0x00000000AB7A5DF8 003BFD (v02 DptfTa DptfTabl 00001000 INTL 20120913) [ 0.013931] ACPI: MSDM 0x00000000AB7A99F8 000055 (v03 DELL CBX3 06222004 AMI 00010013) [ 0.013935] ACPI: SLIC 0x00000000AB7A9A50 000176 (v03 DELL CBX3 01072009 MSFT 00010013) [ 0.013940] ACPI: DMAR 0x00000000AB7A9BC8 0000A8 (v01 INTEL SKL 00000001 INTL 00000001) [ 0.013944] ACPI: TPM2 0x00000000AB7A9C70 000034 (v03 Tpm2Tabl 00000001 AMI 00000000) [ 0.013948] ACPI: ASF! 0x00000000AB7A9CA8 0000A5 (v32 INTEL HCG 00000001 TFSM 000F4240) [ 0.013953] ACPI: BGRT 0x00000000AB7A9D50 000038 (v00 \xf3\xee 01072009 AMI 00010013) [ 0.013957] ACPI: Reserving FACP table memory at [mem 0xab79db58-0xab79dc63] [ 0.013959] ACPI: Reserving DSDT table memory at [mem 0xab77e210-0xab79db57] [ 0.013960] ACPI: Reserving FACS table memory at [mem 0xabe0de80-0xabe0debf] [ 0.013961] ACPI: Reserving APIC table memory at [mem 0xab79dc68-0xab79dceb] [ 0.013963] ACPI: Reserving FPDT table memory at [mem 0xab79dcf0-0xab79dd33] [ 0.013964] ACPI: Reserving MCFG table memory at [mem 0xab79dd38-0xab79dd73] [ 0.013965] ACPI: Reserving HPET table memory at [mem 0xab79dd78-0xab79ddaf] [ 0.013966] ACPI: Reserving SSDT table memory at [mem 0xab79ddb0-0xab79e21c] [ 0.013967] ACPI: Reserving LPIT table memory at [mem 0xab79e220-0xab79e2b3] [ 0.013968] ACPI: Reserving SSDT table memory at [mem 0xab79e2b8-0xab79e4ff] [ 0.013969] ACPI: Reserving SSDT table memory at [mem 0xab79e500-0xab7a10ad] [ 0.013970] ACPI: Reserving SSDT table memory at [mem 0xab7a10b0-0xab7a18c3] [ 0.013972] ACPI: Reserving DBGP table memory at [mem 0xab7a18c8-0xab7a18fb] [ 0.013973] ACPI: Reserving DBG2 table memory at [mem 0xab7a1900-0xab7a1953] [ 0.013974] ACPI: Reserving SSDT table memory at [mem 0xab7a1958-0xab7a4f31] [ 0.013975] ACPI: Reserving UEFI table memory at [mem 0xab7a4f38-0xab7a4f79] [ 0.013976] ACPI: Reserving SSDT table memory at [mem 0xab7a4f80-0xab7a5df2] [ 0.013977] ACPI: Reserving SSDT table memory at [mem 0xab7a5df8-0xab7a99f4] [ 0.013978] ACPI: Reserving MSDM table memory at [mem 0xab7a99f8-0xab7a9a4c] [ 0.013979] ACPI: Reserving SLIC table memory at [mem 0xab7a9a50-0xab7a9bc5] [ 0.013981] ACPI: Reserving DMAR table memory at [mem 0xab7a9bc8-0xab7a9c6f] [ 0.013982] ACPI: Reserving TPM2 table memory at [mem 0xab7a9c70-0xab7a9ca3] [ 0.013983] ACPI: Reserving ASF! table memory at [mem 0xab7a9ca8-0xab7a9d4c] [ 0.013984] ACPI: Reserving BGRT table memory at [mem 0xab7a9d50-0xab7a9d87] [ 0.015122] ACPI: PM-Timer IO Port: 0x1808 [ 0.015132] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) [ 0.015134] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1]) [ 0.015135] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1]) [ 0.015136] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1]) [ 0.015168] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.015170] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.015176] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.015178] ACPI: HPET id: 0x8086a701 base: 0xfed00000 [ 0.105526] ACPI: Core revision 20251212 [ 0.189307] ACPI: PM: Registering ACPI NVS region [mem 0x9d575000-0x9d575fff] (4096 bytes) [ 0.189307] ACPI: PM: Registering ACPI NVS region [mem 0xab7ab000-0xabe0ffff] (6705152 bytes) [ 0.195686] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it [ 0.195688] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.198468] ACPI: Added _OSI(Module Device) [ 0.198473] ACPI: Added _OSI(Processor Device) [ 0.198477] ACPI: Added _OSI(Processor Aggregator Device) [ 0.264909] ACPI: 8 ACPI AML tables successfully acquired and loaded [ 0.269844] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [ 0.282402] ACPI: \_SB_: platform _OSC: OS support mask [006e7eff] [ 0.282402] ACPI: \_SB_: platform _OSC: OS control mask [0000003b] [ 0.283750] ACPI: Dynamic OEM Table Load: [ 0.283761] ACPI: SSDT 0xFFFF8F1781C79800 00037F (v02 PmRef Cpu0Cst 00003001 INTL 20120913) [ 0.286251] ACPI: Dynamic OEM Table Load: [ 0.286261] ACPI: SSDT 0xFFFF8F1781135000 0006A2 (v02 PmRef Cpu0Ist 00003000 INTL 20120913) [ 0.289806] ACPI: Dynamic OEM Table Load: [ 0.289816] ACPI: SSDT 0xFFFF8F1781136800 0005AA (v02 PmRef ApIst 00003000 INTL 20120913) [ 0.292809] ACPI: Dynamic OEM Table Load: [ 0.292817] ACPI: SSDT 0xFFFF8F1781138400 000119 (v02 PmRef ApCst 00003000 INTL 20120913) [ 0.298091] ACPI: EC: EC started [ 0.298094] ACPI: EC: interrupt blocked [ 0.304160] ACPI: EC: EC_CMD/EC_SC=0x934, EC_DATA=0x930 [ 0.304166] ACPI: \_SB_.PCI0.LPCB.ECDV: Boot DSDT EC used to handle transactions [ 0.304169] ACPI: Interpreter enabled [ 0.304232] ACPI: PM: (supports S0 S3 S4 S5) [ 0.304234] ACPI: Using IOAPIC for interrupt routing [ 0.308036] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.309108] ACPI: Enabled 8 GPEs in block 00 to 7F [ 0.313031] ACPI: \_SB_.PCI0.PEG0.PG00: New power resource [ 0.313691] ACPI: \_SB_.PCI0.PEG1.PG01: New power resource [ 0.314333] ACPI: \_SB_.PCI0.PEG2.PG02: New power resource [ 0.321454] ACPI: \_SB_.PCI0.RP09.PXSX.WRST: New power resource [ 0.322041] ACPI: \_SB_.PCI0.RP10.PXSX.WRST: New power resource [ 0.322612] ACPI: \_SB_.PCI0.RP11.PXSX.WRST: New power resource [ 0.323181] ACPI: \_SB_.PCI0.RP12.PXSX.WRST: New power resource [ 0.323749] ACPI: \_SB_.PCI0.RP13.PXSX.WRST: New power resource [ 0.324330] ACPI: \_SB_.PCI0.RP01.PXSX.WRST: New power resource [ 0.324895] ACPI: \_SB_.PCI0.RP02.PXSX.WRST: New power resource [ 0.325482] ACPI: \_SB_.PCI0.RP03.PXSX.WRST: New power resource [ 0.326061] ACPI: \_SB_.PCI0.RP04.PXSX.WRST: New power resource [ 0.326641] ACPI: \_SB_.PCI0.RP05.PXSX.WRST: New power resource [ 0.327232] ACPI: \_SB_.PCI0.RP06.PXSX.WRST: New power resource [ 0.327796] ACPI: \_SB_.PCI0.RP07.PXSX.WRST: New power resource [ 0.328368] ACPI: \_SB_.PCI0.RP08.PXSX.WRST: New power resource [ 0.328936] ACPI: \_SB_.PCI0.RP17.PXSX.WRST: New power resource [ 0.329505] ACPI: \_SB_.PCI0.RP18.PXSX.WRST: New power resource [ 0.330078] ACPI: \_SB_.PCI0.RP19.PXSX.WRST: New power resource [ 0.330641] ACPI: \_SB_.PCI0.RP20.PXSX.WRST: New power resource [ 0.331215] ACPI: \_SB_.PCI0.RP14.PXSX.WRST: New power resource [ 0.331779] ACPI: \_SB_.PCI0.RP15.PXSX.WRST: New power resource [ 0.332356] ACPI: \_SB_.PCI0.RP16.PXSX.WRST: New power resource [ 0.367830] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-7e]) [ 0.367842] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3] [ 0.370088] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug SHPCHotplug PME AER PCIeCapability LTR DPC] [ 0.370093] acpi PNP0A08:00: FADT indicates ASPM is unsupported, using BIOS configuration [ 0.372132] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 0.398958] ACPI: PCI: Interrupt link LNKA configured for IRQ 11 [ 0.399062] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 0.399162] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 0.399260] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 0.399359] ACPI: PCI: Interrupt link LNKE configured for IRQ 11 [ 0.399910] ACPI: PCI: Interrupt link LNKF configured for IRQ 11 [ 0.399910] ACPI: PCI: Interrupt link LNKG configured for IRQ 11 [ 0.399910] ACPI: PCI: Interrupt link LNKH configured for IRQ 11 [ 0.402941] ACPI: EC: interrupt unblocked [ 0.402944] ACPI: EC: event unblocked [ 0.402950] ACPI: EC: EC_CMD/EC_SC=0x934, EC_DATA=0x930 [ 0.402953] ACPI: EC: GPE=0x14 [ 0.402957] ACPI: \_SB_.PCI0.LPCB.ECDV: Boot DSDT EC initialization complete [ 0.402963] ACPI: \_SB_.PCI0.LPCB.ECDV: EC: Used to handle transactions and events [ 0.404163] ACPI: bus type USB registered [ 0.407102] PCI: Using ACPI for IRQ routing [ 0.430856] acpi PNP0C02:00: Skipped [io 0x002e-0x002f] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x004e-0x004f] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0061] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0063] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0065] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0067] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0070] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0080] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x0092] [ 0.430856] acpi PNP0C02:00: Skipped [io 0x00b2-0x00b3] [ 0.430856] acpi PNP0C02:00: Reserved [io 0x0680-0x069f] [ 0.430856] acpi PNP0C02:00: Reserved [io 0xffff] [ 0.430856] acpi PNP0C02:00: Reserved [io 0xffff] [ 0.430856] acpi PNP0C02:00: Reserved [io 0xffff] [ 0.430856] acpi PNP0C02:00: Could not reserve [io 0x1800-0x18fe] [ 0.430856] acpi PNP0C02:00: Reserved [io 0x164e-0x164f] [ 0.431226] acpi PNP0C02:02: Reserved [mem 0xfed10000-0xfed17fff] [ 0.431231] acpi PNP0C02:02: Reserved [mem 0xfed18000-0xfed18fff] [ 0.431236] acpi PNP0C02:02: Reserved [mem 0xfed19000-0xfed19fff] [ 0.431240] acpi PNP0C02:02: Reserved [mem 0xf0000000-0xf7ffffff] [ 0.431244] acpi PNP0C02:02: Reserved [mem 0xfed20000-0xfed3ffff] [ 0.431249] acpi PNP0C02:02: Could not reserve [mem 0xfed90000-0xfed93fff] [ 0.431253] acpi PNP0C02:02: Reserved [mem 0xfed45000-0xfed8ffff] [ 0.431257] acpi PNP0C02:02: Reserved [mem 0xff000000-0xffffffff] [ 0.431262] acpi PNP0C02:02: Could not reserve [mem 0xfee00000-0xfeefffff] [ 0.431266] acpi PNP0C02:02: Reserved [mem 0xeffe0000-0xefffffff] [ 0.431305] acpi PNP0C02:03: Reserved [mem 0xfd000000-0xfdabffff] [ 0.431309] acpi PNP0C02:03: Reserved [mem 0xfdad0000-0xfdadffff] [ 0.431314] acpi PNP0C02:03: Reserved [mem 0xfdb00000-0xfdffffff] [ 0.431318] acpi PNP0C02:03: Could not reserve [mem 0xfe000000-0xfe01ffff] [ 0.431322] acpi PNP0C02:03: Reserved [mem 0xfe036000-0xfe03bfff] [ 0.431327] acpi PNP0C02:03: Reserved [mem 0xfe03d000-0xfe3fffff] [ 0.431331] acpi PNP0C02:03: Reserved [mem 0xfe410000-0xfe7fffff] [ 0.431837] acpi PNP0C02:04: Reserved [io 0xff00-0xfffe] [ 0.433767] acpi PNP0C02:05: Reserved [mem 0xfe029000-0xfe029fff] [ 0.433772] acpi PNP0C02:05: Reserved [mem 0xfe028000-0xfe028fff] [ 0.433779] acpi PNP0C02:05: Reserved [mem 0xfdaf0000-0xfdafffff] [ 0.433782] acpi PNP0C02:05: Reserved [mem 0xfdae0000-0xfdaeffff] [ 0.433784] acpi PNP0C02:05: Reserved [mem 0xfdac0000-0xfdacffff] [ 0.433831] pnp: PnP ACPI init [ 0.440126] pnp: PnP ACPI: found 4 devices [ 0.447677] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 0.514018] ACPI: AC: AC Adapter [AC] (on-line) [ 0.514208] ACPI: button: Lid Switch [LID0] [ 0.514338] ACPI: button: Power Button [PBTN] [ 0.514467] ACPI: button: Sleep Button [SBTN] [ 0.514600] ACPI: button: Power Button [PWRF] [ 0.519307] acpi LNXTHERM:00: registered as thermal_zone0 [ 0.519314] ACPI: thermal: Thermal Zone [THM] (25 C) [ 0.566643] ACPI: battery: Slot [BAT0] (battery present) [ 0.599883] ACPI: bus type drm_connector registered [ 2.858885] parport_pc 00:03: reported by Plug and Play ACPI [ 4.969052] i915 0000:00:02.0: [drm] Found skylake/ult (device ID 1916) integrated display version 9.00 stepping H0 [ 5.005382] i915 0000:00:02.0: vgaarb: deactivate vga console [ 5.010732] i915 0000:00:02.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 5.013037] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27) [ 5.115880] videodev: Linux video capture interface: v2.00 [ 5.119435] i915 0000:00:02.0: [drm] Registered 3 planes with drm panic [ 5.130766] [drm] Initialized i915 1.6.0 for 0000:00:02.0 on minor 1 [ 5.146528] ACPI: video: Video Device [GFX0] (multi-head: yes rom: no post: no) [ 5.150867] input: Video Bus as /devices/pci0000:00/acpi.video_bus.0/input/input10 [ 5.170026] fbcon: i915drmfb (fb0) is primary device [ 5.170037] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device [ 5.188302] ACPI: battery: new hook: Dell Primary Battery Extension [ 5.367869] uvcvideo 1-2:1.0: Found UVC 1.00 device Integrated_Webcam_HD (1bcf:2b91) [ 5.410306] usbcore: registered new interface driver uvcvideo [ 6.253283] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops intel_audio_component_bind_ops [i915]) [ 5672.956076] workqueue: acpi_os_execute_deferred hogged CPU for >10000us 4 times, consider switching to WQ_UNBOUND [ 5673.223080] workqueue: acpi_os_execute_deferred hogged CPU for >10000us 5 times, consider switching to WQ_UNBOUND [ 5673.687064] workqueue: acpi_os_execute_deferred hogged CPU for >10000us 7 times, consider switching to WQ_UNBOUND [ 5674.664063] workqueue: acpi_os_execute_deferred hogged CPU for >10000us 11 times, consider switching to WQ_UNBOUND
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2161394 Title: Brightness hotkeys have no effect in Dell Laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161394/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
