Hi all,
I recently bought a Thinkpad T460. Most issues I've had with it (trackpoint
scroll, intel 520 glitches) have been more or less resolved by upgrading
to 4.6-rc1 kernel.
The last issue I can't solve is the computer hanging when closing the lid
while on battery power. The laptop freezes completely and nothing is
reported in dmesg or journalctl.
I am have to force a shutdown by holding the power button for 5sec.
If the lid is closed with AC plugged in, it suspends and wakes up without
an issue.
Also if is suspend before closing the lid, everything also works normally.
During boot i get the following output relating to thinkpad_acpi module
[ 3.475030] thinkpad_acpi: ThinkPad ACPI Extras v0.25
[ 3.475033] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 3.475034] thinkpad_acpi: ThinkPad BIOS R06ET33W (1.07 ), EC unknown
[ 3.475035] thinkpad_acpi: Lenovo ThinkPad T460, model 20FN003GGM
[ 3.476266] thinkpad_acpi: unknown version of the HKEY interface: 0x200
[ 3.476290] thinkpad_acpi: please report this to
ibm-acpi-devel@lists.sourceforge.net
[ 3.477102] thinkpad_acpi: radio switch found; radios are enabled
[ 3.477116] thinkpad_acpi: This ThinkPad has standard ACPI backlight
brightness control, supported by the ACPI video driver
[ 3.477117] thinkpad_acpi: Disabling thinkpad-acpi brightness events by
default...
[ 3.478477] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is
unblocked
[ 3.480422] thinkpad_acpi: Standard ACPI backlight interface available, not
loading native one
I am running Arch linux.
The issue exists on every kernel version I tried: 4.1, 4.4, 4.5, 4.6-rc1.
I am not sure this is related to thinkpad_acpi module but I figured I start
from here.
I am willing to help with this issue or to test other things on the T460.
Thanks,
Alex
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