Thinkpad buttons do not work on X250 + T550 (NetBSD 9.1 + 9.2)

To: netbsd-bugs%NetBSD.org@localhost
Subject: Thinkpad buttons do not work on X250 + T550 (NetBSD 9.1 + 9.2)
From: netneo <netneo%proinbox.com@localhost>
Date: Fri, 28 May 2021 22:58:51 +0200

Hello,

The Thinkpad buttons on the Thinpads X250 and T550 to adjust audio and backlight do not seem to be working. I have tested this under NetBSD 9.1. and 9.2 on both of those machines, using LXQT and/or XFCE as a desktop environment. 

Is this feature currently unsupported?

As a workaround, I have used "sudo intel_backlight 50%", which does work as expected.

I am attaching my dmesg output for your reference. Please do not hesitate to let me know what else you might need.

Thank you.
netneo

Attachment: dmesg.output
Description: Binary data

Follow-Ups:
- re: Thinkpad buttons do not work on X250 + T550 (NetBSD 9.1 + 9.2)
  - From: matthew green

Prev by Date: Re: kern/56164: System panicked: kernel diagnostic assertion "(target->prt_class == class)" failed: file "/src/src/sys/kern/subr_psref.c", line 296 mismatched psref target class: 0x0 (ref) != 0xffffd2ef411bc940 (expected)
Next by Date: mouse does not work upon resuming from suspend (NetBSD 9.1. + 9.2 on X250 and T550)
Previous by Thread: audio output hangs, hiccups, stutters, reverbs on X250 but ONLY while using the touchpad (NetBSD 9.1 + 9.2)
Next by Thread: re: Thinkpad buttons do not work on X250 + T550 (NetBSD 9.1 + 9.2)
Indexes:

Home | Main Index | Thread Index | Old Index