slow boot with black screen $ lsb_release -rd Description: Ubuntu 19.04 Release: 19.04 $ dmesg | grep "report a bug" [ 0.937327] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug $ lsmod | grep acpi toshiba_acpi 53248 0 sparse_keymap 16384 1 toshiba_acpi industrialio 73728 1 toshiba_acpi wmi 28672 2 toshiba_acpi,wmi_bmof video 45056 1 toshiba_acpi $ dmesg | grep acpi [ 0.156523] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.942577] acpi ABCD0000:00: ACPI dock station (docks/bays count: 1) [ 0.947594] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI] [ 0.947816] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM [ 0.988306] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 5.169375] acpi device:37: registered as cooling_device2 [ 18.730234] toshiba_acpi: Toshiba Laptop ACPI Extras version 0.24 [ 18.838815] toshiba_acpi: WMI event detected, hotkeys will not be monitored [ 18.907530] toshiba_acpi: Supported laptop features: touchpad special-function-keys cooling-method $ dmesg | grep "ACPI" [ 0.000000] BIOS-e820: [mem 0x00000000aa1ee000-0x00000000aa976fff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x00000000aa99a000-0x00000000aa99efff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x00000000af6bf000-0x00000000af7befff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x00000000af7bf000-0x00000000af7fefff] ACPI data [ 0.017303] ACPI: Early table checksum verification disabled [ 0.017551] ACPI: RSDP 0x00000000000FE020 000024 (v02 TOSASU) [ 0.017555] ACPI: XSDT 0x00000000AF7FE210 0000A4 (v01 TOSASU TOSASU00 00000100 01000013) [ 0.017562] ACPI: FACP 0x00000000AF7FA000 00010C (v05 TOSASU TOSASU00 00000100 ACPI 00040000) [ 0.017569] ACPI: DSDT 0x00000000AF7DF000 017D26 (v01 TOSASU TOSASU00 00000000 ACPI 00040000) [ 0.017573] ACPI: FACS 0x00000000AF7B2000 000040 [ 0.017576] ACPI: ECDT 0x00000000AF7FD000 0000C1 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017580] ACPI: UEFI 0x00000000AF7FC000 000236 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017584] ACPI: ASF! 0x00000000AF7FB000 0000A5 (v32 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017588] ACPI: HPET 0x00000000AF7F9000 000038 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017591] ACPI: APIC 0x00000000AF7F8000 00008C (v03 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017595] ACPI: MCFG 0x00000000AF7F7000 00003C (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017599] ACPI: SLIC 0x00000000AF7DE000 000176 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017602] ACPI: WDAT 0x00000000AF7DD000 000224 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017606] ACPI: SSDT 0x00000000AF7DB000 001068 (v01 INSYDE CR CRB 00001000 ACPI 00040000) [ 0.017610] ACPI: BOOT 0x00000000AF7D9000 000028 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017614] ACPI: ASPT 0x00000000AF7D4000 000034 (v07 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017618] ACPI: FPDT 0x00000000AF7D2000 000044 (v01 TOSASU TOSASU00 00000001 ACPI 00040000) [ 0.017621] ACPI: SSDT 0x00000000AF7D1000 000937 (v01 INSYDE CR CRB 00003000 ACPI 00040000) [ 0.017625] ACPI: SSDT 0x00000000AF7D0000 000A92 (v01 INSYDE CR CRB 00003000 ACPI 00040000) [ 0.017629] ACPI: SSDT 0x00000000AF7CF000 0004AF (v01 INSYDE CR CRB 00001000 ACPI 00040000) [ 0.017641] ACPI: Local APIC address 0xfee00000 [ 0.074282] ACPI: PM-Timer IO Port: 0x408 [ 0.074286] ACPI: Local APIC address 0xfee00000 [ 0.074308] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.074310] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.074312] ACPI: IRQ0 used by override. [ 0.074314] ACPI: IRQ9 used by override. [ 0.074316] Using ACPI (MADT) for SMP configuration information [ 0.074318] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.122794] ACPI: Core revision 20181213 [ 0.156523] PM: Registering ACPI NVS region [mem 0xaa1ee000-0xaa976fff] (7901184 bytes) [ 0.156523] PM: Registering ACPI NVS region [mem 0xaa99a000-0xaa99efff] (20480 bytes) [ 0.156523] PM: Registering ACPI NVS region [mem 0xaf6bf000-0xaf7befff] (1048576 bytes) [ 0.156523] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it [ 0.156523] ACPI: bus type PCI registered [ 0.156523] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.160035] ACPI: Added _OSI(Module Device) [ 0.160035] ACPI: Added _OSI(Processor Device) [ 0.160035] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.160035] ACPI: Added _OSI(Processor Aggregator Device) [ 0.160035] ACPI: Added _OSI(Linux-Dell-Video) [ 0.160035] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 0.160035] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 0.181030] ACPI: 5 ACPI AML tables successfully acquired and loaded [ 0.182256] ACPI: EC: EC started [ 0.182259] ACPI: EC: interrupt blocked [ 0.183697] ACPI: \: Used as first EC [ 0.183701] ACPI: \: GPE=0x1b, EC_CMD/EC_SC=0x66, EC_DATA=0x62 [ 0.183704] ACPI: \: Used as boot ECDT EC to handle transactions [ 0.185511] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [ 0.935524] ACPI Error: Needed type [Reference], found [Integer] (____ptrval____) (20181213/exresop-69) [ 0.935533] ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [Store] (20181213/dswexec-427) [ 0.935558] ACPI Error: Method parse/execution failed \_PR.CPU0._PDC, AE_AML_OPERAND_TYPE (20181213/psparse-531) [ 0.936044] ACPI: Dynamic OEM Table Load: [ 0.936054] ACPI: SSDT 0xFFFF9DD50720C000 000303 (v01 PmRef ApIst 00003000 INTL 20120111) [ 0.936602] ACPI: Dynamic OEM Table Load: [ 0.936610] ACPI: SSDT 0xFFFF9DD507167C00 000119 (v01 PmRef ApCst 00003000 INTL 20120111) [ 0.937241] ACPI: Interpreter enabled [ 0.937280] ACPI: (supports S0 S3 S4 S5) [ 0.937283] ACPI: Using IOAPIC for interrupt routing [ 0.937327] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.937662] ACPI: watchdog: Skipping WDAT on this system because it uses RTC SRAM [ 0.937684] ACPI: Enabled 8 GPEs in block 00 to 3F [ 0.942577] acpi ABCD0000:00: ACPI dock station (docks/bays count: 1) [ 0.947585] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-fe]) [ 0.958697] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 11 12 14 15) *7 [ 0.958798] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 *10 11 12 14 15) [ 0.958895] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.958992] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 *10 11 12 14 15) [ 0.959087] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.959187] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 *10 11 12 14 15) [ 0.959284] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.959381] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 10 11 12 14 15) *7 [ 0.959877] ACPI: EC: interrupt unblocked [ 0.959891] ACPI: EC: event unblocked [ 0.959900] ACPI: \_SB_.PCI0.LPCB.EC0_: GPE=0x1b, EC_CMD/EC_SC=0x66, EC_DATA=0x62 [ 0.959904] ACPI: \_SB_.PCI0.LPCB.EC0_: Used as boot DSDT EC to handle transactions and events [ 0.959994] ACPI: bus type USB registered [ 0.959994] PCI: Using ACPI for IRQ routing [ 0.980955] pnp: PnP ACPI init [ 0.981209] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.981241] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.981323] system 00:02: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active) [ 0.981363] pnp 00:03: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.981398] pnp 00:04: Plug and Play ACPI device, IDs TOS0310 TOS0220 TTP0100 PNP0f13 (active) [ 0.981745] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.982136] system 00:06: Plug and Play ACPI device, IDs PNP0c01 (active) [ 0.982227] pnp: PnP ACPI: found 7 devices [ 2.271407] ACPI: AC Adapter [AC0] (on-line) [ 2.272674] ACPI: Power Button [PWRB] [ 2.273757] ACPI: Lid Switch [LID] [ 2.274742] ACPI: Power Button [PWRF] [ 2.275095] ACPI: duty_cycle spans bit 4 [ 2.275491] ACPI: duty_cycle spans bit 4 [ 2.278356] ACPI: Thermal Zone [THRM] (64 C) [ 2.293334] battery: ACPI: Battery Slot [BAT0] (battery present) [ 5.057049] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS [ 5.135982] ACPI: Video Device [PEGP] (multi-head: yes rom: no post: no) [ 5.185623] ACPI: watchdog: Skipping WDAT on this system because it uses RTC SRAM [ 5.238205] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20181213/utaddress-213) [ 5.274186] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 5.295150] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20181213/utaddress-213) [ 5.334124] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x000000000000057F (\GPXX) (20181213/utaddress-213) [ 5.374894] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 5.398681] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20181213/utaddress-213) [ 5.441439] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x000000000000057F (\GPXX) (20181213/utaddress-213) [ 5.486249] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 5.536910] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20181213/utaddress-213) [ 5.586475] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x000000000000057F (\GPXX) (20181213/utaddress-213) [ 5.638503] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 18.730234] toshiba_acpi: Toshiba Laptop ACPI Extras version 0.24