https://bugzilla.kernel.org/show_bug.cgi?id=191561
Bug ID: 191561
Summary: ACPI : EC: EC started - 6 Seconds delay on boot
Product: ACPI
Version: 2.5
Kernel Version: 4.9.0-amd64
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: EC
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Hi There!
On my HP Probook 450 G2 i have a 6 second boot-delay on ACPI.
Look on dmesg:
[ 0.398479] ACPI: Added _OSI(Module Device)
[ 0.398480] ACPI: Added _OSI(Processor Device)
[ 0.398481] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.398482] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.409163] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.416282] ACPI: Dynamic OEM Table Load:
[ 0.416293] ACPI: SSDT 0xFFFF937289858000 0003F3 (v01 PmRef Cpu0Cst
00003001 INTL 20130927)
[ 0.416759] ACPI: Dynamic OEM Table Load:
[ 0.416769] ACPI: SSDT 0xFFFF93728982B000 0005DB (v01 PmRef ApIst
00003000 INTL 20130927)
[ 0.417314] ACPI: Dynamic OEM Table Load:
[ 0.417321] ACPI: SSDT 0xFFFF937289F74800 000119 (v01 PmRef ApCst
00003000 INTL 20130927)
[ 0.418555] ACPI : EC: EC started
[ 6.649711] ACPI: \_SB_.PCI0.LPCB.EC0_: Used as first EC
[ 6.649714] ACPI: \_SB_.PCI0.LPCB.EC0_: GPE=0x6, EC_CMD/EC_SC=0x66,
EC_DATA=0x62
[ 6.649715] ACPI: \_SB_.PCI0.LPCB.EC0_: Used as boot DSDT EC to handle
transactions
[ 6.649716] ACPI: Interpreter enabled
[ 6.649755] ACPI: (supports S0 S3 S4 S5)
[ 6.649756] ACPI: Using IOAPIC for interrupt routing
I filed a bug to the debian-kernel
(http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=846792), and according to
Salvatore Bonaccorso i compiled a vanilla-kernel. On Vanilla-Kernel, the delay
persists. So Salvatore asked me, to file a bug against Kernel 4.9 here.
This boot-delay started at least at Kernel 4.6 or 4.7. Maybe earlier.
I tried different boot-options alone, in combination and all from this list:
noacpi
pcie_aspm=force
acpi_osi=Linux
acpi_osi='!Windows 2012'
The 6 Second-boot-delay was here every boot.
Do you need more information? Which one?
Regards
Jakob
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