ACPI Suspend (Fn+4) key stops working after upgrading ThinkPad P50 BIOS from 1.15 to 1.17: unknown version of the HKEY interface: 0x200

[Vishnu Mohan <vishnu2kmohan@xxxxxxxxx>]

Hello,

$ uname -a 
Linux p50 4.4.2-gentoo #2 SMP PREEMPT Sun Feb 21 12:28:42 EST 2016 x86_64 Intel(R) Xeon(R) CPU E3-1505M v5 @ 2.80GHz GenuineIntel GNU/Linux

$ sudo dmesg | grep -i thinkpad_acpi
[    3.893358] thinkpad_acpi: ThinkPad ACPI Extras v0.25
[    3.893360] thinkpad_acpi: http://ibm-acpi.sf.net/
[    3.893361] thinkpad_acpi: ThinkPad BIOS N1EET43W (1.17 ), EC unknown
[    3.893362] thinkpad_acpi: Lenovo ThinkPad P50, model 20ENCTO1WW
[    3.894464] thinkpad_acpi: detected a 16-level brightness capable ThinkPad
[    3.894477] thinkpad_acpi: unknown version of the HKEY interface: 0x200
[    3.894495] thinkpad_acpi: please report this to ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
[    3.894518] thinkpad_acpi: radio switch found; radios are enabled
[    3.894600] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[    3.894601] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[    3.896254] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[    3.897099] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[    3.899557] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input6
[ 3966.501665] thinkpad_acpi: acpi_evalf(GTRW, dd, ...) failed: AE_NOT_FOUND
[ 3966.501669] thinkpad_acpi: Cannot read adaptive keyboard mode.
[ 3969.278702] thinkpad_acpi: acpi_evalf(STRW, vd, ...) failed: AE_NOT_FOUND
[ 3969.278704] thinkpad_acpi: Cannot set adaptive keyboard mode.
[ 6605.986884] thinkpad_acpi: acpi_evalf(GTRW, dd, ...) failed: AE_NOT_FOUND
[ 6605.986887] thinkpad_acpi: Cannot read adaptive keyboard mode.
[ 6608.257329] thinkpad_acpi: EC reports that Thermal Table has changed
[ 6609.047183] thinkpad_acpi: EC reports that Thermal Table has changed
[ 6609.228249] thinkpad_acpi: acpi_evalf(STRW, vd, ...) failed: AE_NOT_FOUND
[ 6609.228250] thinkpad_acpi: Cannot set adaptive keyboard mode.
[10336.422905] thinkpad_acpi: EC reports that Thermal Table has changed
[10469.337716] thinkpad_acpi: EC reports that Thermal Table has changed
[16227.777120] thinkpad_acpi: acpi_evalf(GTRW, dd, ...) failed: AE_NOT_FOUND
[16227.777124] thinkpad_acpi: Cannot read adaptive keyboard mode.
[16229.900005] thinkpad_acpi: EC reports that Thermal Table has changed
[16230.671167] thinkpad_acpi: acpi_evalf(STRW, vd, ...) failed: AE_NOT_FOUND
[16230.671169] thinkpad_acpi: Cannot set adaptive keyboard mode.
[23694.561489] thinkpad_acpi: acpi_evalf(GTRW, dd, ...) failed: AE_NOT_FOUND
[23694.561491] thinkpad_acpi: Cannot read adaptive keyboard mode.
[23696.844617] thinkpad_acpi: EC reports that Thermal Table has changed
[23697.634474] thinkpad_acpi: EC reports that Thermal Table has changed
[23697.805622] thinkpad_acpi: acpi_evalf(STRW, vd, ...) failed: AE_NOT_FOUND
[23697.805623] thinkpad_acpi: Cannot set adaptive keyboard mode.

The BIOS can be downloaded here - http://support.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-p-series-laptops/thinkpad-p50?beta=false

BIOS Bootable Update CD (1.17): https://download.lenovo.com/pccbbs/mobiles/n1eur06w.iso

README for BIOS Bootable Update CD (1.17): https://download.lenovo.com/pccbbs/mobiles/n1eur06w.txt

BIOS Update Utility(1.17): https://download.lenovo.com/pccbbs/mobiles/n1euj06w.exe

README for BIOS Update Utility (1.17): https://download.lenovo.com/pccbbs/mobiles/n1euj06w.txt

Thanks,
Vishnu

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