From: "Pali Rohár" <pali.rohar@gmail.com>
To: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>,
ibm-acpi-devel@lists.sourceforge.net,
platform-driver-x86@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: ThinkPad T480s & LED_MUTE, LED_MICMUTE
Date: Fri, 8 Jun 2018 13:10:57 +0200 [thread overview]
Message-ID: <20180608111057.4wxpg7m7nm7suf6n@pali> (raw)
Hi! With up-to-date thinkpad_acpi.ko driver on ThinkPad T480s I'm seeing
a strange behavior of LEDs which are integrated into mic mute (Fn+F4)
and mute (Fn+F1) keys.
When thinkpad_acpi.ko is not loaded, then mute key is working fine. When
pressed, it correctly generates KEY_MUTE on AT Translated Set 2 keyboard
input device and also turn on/of mute led. But when micmute key is
pressed then, nothing happen. No key event is reported and also led is
not turned on/off.
On the other hand, when thinkpad_acpi.ko is loaded, then both buttons
mute and micmute correctly generates input events; mute via AT keyboard
and micmute via ThinkPad Extra Buttons. But led is not changed. When
thinkpad_acpi.ko is loaded it turn off both leds (mute and micmute) and
leds after pressing any of those buttons, leds are not turned on again.
When thinkpad_acpi.ko is unloaded, then pressing mute button again start
switching led on/off.
So it seems that some init sequence of thinkpad_acpi.ko breaks mute led.
And fini sequence of thinkpad_acpi.ko makes mute led working again.
--
Pali Rohár
pali.rohar@gmail.com
next reply other threads:[~2018-06-08 11:11 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-08 11:10 Pali Rohár [this message]
2018-06-15 11:26 ` Pavel Machek
2018-06-15 11:37 ` Pali Rohár
2018-06-15 12:30 ` Henrique de Moraes Holschuh
2018-06-15 19:09 ` Pali Rohár
2018-06-15 23:36 ` Henrique de Moraes Holschuh
2018-06-16 7:33 ` Pavel Machek
2018-06-16 14:12 ` Henrique de Moraes Holschuh
2018-06-16 15:58 ` Pavel Machek
2018-06-18 10:11 ` Pali Rohár
2018-06-21 11:37 ` Pali Rohár
2018-06-15 12:51 ` Takashi Iwai
2018-06-15 19:09 ` Pali Rohár
2018-06-16 7:05 ` Takashi Iwai
2018-06-16 15:43 ` Pali Rohár
2018-06-16 16:02 ` Takashi Iwai
2018-06-18 10:28 ` Pali Rohár
2018-06-18 10:36 ` Takashi Iwai
2018-06-18 11:21 ` Pali Rohár
2018-06-18 11:26 ` Pali Rohár
2018-06-18 15:35 ` Takashi Iwai
2018-06-21 11:30 ` Pali Rohár
2018-06-21 11:35 ` [ibm-acpi-devel] " Damjan Georgievski
2018-06-21 11:39 ` Takashi Iwai
2018-06-23 12:46 ` Damjan Georgievski
2018-06-21 11:40 ` Pali Rohár
2018-06-19 8:37 ` Pali Rohár
2018-06-19 8:42 ` Takashi Iwai
2018-06-21 11:24 ` Pali Rohár
2018-06-21 11:29 ` Takashi Iwai
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