Ilgaz: 1) Could you please provide from the the sticker of the computer itself (not from the Bug Description, or the result of a terminal command) the full computer model? For example, HP Pavilion 13-u100 x360 Convertible PC. Model 13-a200nt PN: L0B69EA#AB8 2) Could you please undo all WORKAROUNDs and non-default kernel parameters and provide logs of a bad boot following https://wiki.ubuntu.com/DebuggingKernelBoot ? Apologies since it is impossible. Just tried following the instructions on the referenced page. I just get a blank screen with no visible sign of anything happening. Caps lock led doesn't function either so I believe keyboard isn't functioning at all. However, here is the dmesg |grep ACPI output from the "acpi_osi=" argument booted kernel. Perhaps it can help? dmesg |grep ACPI [ 0.000000] BIOS-e820: [mem 0x000000009cdbf000-0x000000009cfbefff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x000000009cfbf000-0x000000009cffefff] ACPI data [ 0.000000] efi: SMBIOS=0x9cb30000 ESRT=0x9cb35718 ACPI 2.0=0x9cffe014 [ 0.016525] ACPI: Early table checksum verification disabled [ 0.016530] ACPI: RSDP 0x000000009CFFE014 000024 (v02 HPQOEM) [ 0.016535] ACPI: XSDT 0x000000009CFFE120 0000C4 (v01 HPQOEM SLIC-MPC 00000001 01000013) [ 0.016544] ACPI: FACP 0x000000009CFEF000 00010C (v05 HPQOEM SLIC-MPC 00000001 HP 00040000) [ 0.016554] ACPI: DSDT 0x000000009CFDC000 00E8EE (v02 HPQOEM SLIC-MPC 00000000 ACPI 00040000) [ 0.016559] ACPI: FACS 0x000000009CFB9000 000040 [ 0.016563] ACPI: UEFI 0x000000009CFFD000 000236 (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016568] ACPI: UEFI 0x000000009CFFC000 000042 (v01 HPQOEM 2341 00000000 HP 00040000) [ 0.016573] ACPI: SSDT 0x000000009CFF5000 0069E4 (v01 HPQOEM 2341 00001000 ACPI 00040000) [ 0.016577] ACPI: MSDM 0x000000009CFF4000 000055 (v03 HPQOEM SLIC-MPC 00000001 HP 00040000) [ 0.016582] ACPI: ASF! 0x000000009CFF3000 0000A5 (v32 HPQOEM 2341 00000001 HP 00040000) [ 0.016587] ACPI: ASPT 0x000000009CFF2000 000034 (v07 HPQOEM 2341 00000001 HP 00040000) [ 0.016591] ACPI: BOOT 0x000000009CFF1000 000028 (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016596] ACPI: DBGP 0x000000009CFF0000 000034 (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016600] ACPI: HPET 0x000000009CFEE000 000038 (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016605] ACPI: LPIT 0x000000009CFED000 000094 (v01 HPQOEM 2341 00000000 HP 00040000) [ 0.016609] ACPI: APIC 0x000000009CFEC000 00008C (v03 HPQOEM SLIC-MPC 00000001 HP 00040000) [ 0.016614] ACPI: MCFG 0x000000009CFEB000 00003C (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016619] ACPI: SSDT 0x000000009CFDA000 00143D (v02 HPQOEM 2341 00001000 ACPI 00040000) [ 0.016623] ACPI: SSDT 0x000000009CFD9000 000539 (v02 HPQOEM 2341 00003000 ACPI 00040000) [ 0.016628] ACPI: SSDT 0x000000009CFD8000 000B74 (v02 HPQOEM 2341 00003000 ACPI 00040000) [ 0.016633] ACPI: SSDT 0x000000009CFD2000 005D09 (v02 HPQOEM 2341 00003000 ACPI 00040000) [ 0.016637] ACPI: DMAR 0x000000009CFD1000 0000B0 (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016642] ACPI: FPDT 0x000000009CFD0000 000044 (v01 HPQOEM SLIC-MPC 00000002 HP 00040000) [ 0.016646] ACPI: BGRT 0x000000009CFCF000 000038 (v01 HPQOEM 2341 00000001 HP 00040000) [ 0.016660] ACPI: Local APIC address 0xfee00000 [ 0.060982] ACPI: PM-Timer IO Port: 0x1808 [ 0.060985] ACPI: Local APIC address 0xfee00000 [ 0.061009] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.061012] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.061014] ACPI: IRQ0 used by override. [ 0.061016] ACPI: IRQ9 used by override. [ 0.061019] Using ACPI (MADT) for SMP configuration information [ 0.061021] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.061661] ACPI: _OSI method disabled [ 0.137228] ACPI: Core revision 20190703 [ 0.174763] PM: Registering ACPI NVS region [mem 0x9cdbf000-0x9cfbefff] (2097152 bytes) [ 0.174763] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it [ 0.174763] ACPI: bus type PCI registered [ 0.174763] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.181694] ACPI: Added _OSI(Module Device) [ 0.181700] ACPI: Added _OSI(Processor Device) [ 0.181703] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.181706] ACPI: Added _OSI(Processor Aggregator Device) [ 0.181709] ACPI: Added _OSI(Linux-Dell-Video) [ 0.181712] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 0.181715] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 0.217908] ACPI: 6 ACPI AML tables successfully acquired and loaded [ 0.223179] ACPI: Dynamic OEM Table Load: [ 0.223193] ACPI: SSDT 0xFFFF923414F98C00 0003FA (v02 PmRef Cpu0Cst 00003001 INTL 20130117) [ 0.225413] ACPI: Dynamic OEM Table Load: [ 0.225426] ACPI: SSDT 0xFFFF9234152EB000 0005AA (v02 PmRef ApIst 00003000 INTL 20130117) [ 0.227503] ACPI: Dynamic OEM Table Load: [ 0.227503] ACPI: SSDT 0xFFFF923414C92E00 000119 (v02 PmRef ApCst 00003000 INTL 20130117) [ 0.231903] ACPI: EC: EC started [ 0.231907] ACPI: EC: interrupt blocked [ 0.427045] ACPI: \_SB_.PCI0.LPCB.EC0_: Used as first EC [ 0.427051] ACPI: \_SB_.PCI0.LPCB.EC0_: GPE=0x8, EC_CMD/EC_SC=0x66, EC_DATA=0x62 [ 0.427056] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC used to handle transactions [ 0.427060] ACPI: Interpreter enabled [ 0.427129] ACPI: (supports S0 S3 S4 S5) [ 0.427132] ACPI: Using IOAPIC for interrupt routing [ 0.427200] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.427760] ACPI: Enabled 7 GPEs in block 00 to 7F [ 0.429066] ACPI: Power Resource [PG00] (on) [ 0.430037] ACPI: Power Resource [PG01] (on) [ 0.430983] ACPI: Power Resource [PG02] (on) [ 0.447695] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20190703/psargs-330) [ 0.447718] ACPI Error: Aborting method \_SB.PAGD._STA due to previous error (AE_NOT_FOUND) (20190703/psparse-529) [ 0.449555] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-fe]) [ 0.465235] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465346] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465450] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465557] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465663] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465768] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465873] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.465983] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.466188] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20190703/psargs-330) [ 0.466208] ACPI Error: Aborting method \_SB.PAGD._STA due to previous error (AE_NOT_FOUND) (20190703/psparse-529) [ 0.466538] ACPI: EC: interrupt unblocked [ 0.466552] ACPI: EC: event unblocked [ 0.466562] ACPI: \_SB_.PCI0.LPCB.EC0_: GPE=0x8, EC_CMD/EC_SC=0x66, EC_DATA=0x62 [ 0.466567] ACPI: \_SB_.PCI0.LPCB.EC0_: Boot DSDT EC used to handle transactions and events [ 0.466679] ACPI: bus type USB registered [ 0.505993] PCI: Using ACPI for IRQ routing [ 0.532452] pnp: PnP ACPI init [ 0.532920] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.533004] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.533084] pnp 00:02: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.533129] pnp 00:03: Plug and Play ACPI device, IDs SYN1ecf SYN1e00 SYN0002 PNP0f13 (active) [ 0.533648] system 00:04: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.534457] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20190703/psargs-330) [ 0.534478] ACPI Error: Aborting method \_SB.PAGD._STA due to previous error (AE_NOT_FOUND) (20190703/psparse-529) [ 0.534592] pnp: PnP ACPI: found 5 devices [ 0.790826] ACPI: AC Adapter [ADP1] (on-line) [ 0.791018] ACPI: Lid Switch [LID0] [ 0.791138] ACPI: Power Button [PWRB] [ 0.791267] ACPI: Power Button [PWRF] [ 0.800076] ACPI: Thermal Zone [TZ01] (58 C) [ 0.869696] battery: ACPI: Battery Slot [BAT0] (battery present) [ 4.252532] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) 3) Could you please advise to the purpose of the non-default kernel parameter pci=biosirq (i.e. is it required along with acpi_osi=, does it improve functionality with or without other parameters, etc.)? I added it since I saw a hint to enable it on the dmesg log. However, the hardware (broadcom wlan) is functioning without it now (irq is found) so I removed it.