Bug 957152 – thinkpad_acpi: Unsupported brightness interface

Bug 957152 - thinkpad_acpi: Unsupported brightness interface


Summary:	thinkpad_acpi: Unsupported brightness interface

Status:	RESOLVED FIXED

Classification:	openSUSE
Product:	openSUSE Distribution
Classification:	openSUSE
Component:	Kernel
Version:	Leap 42.1
Hardware:	Other Other

Priority:	P5 - None Severity: Normal (vote)
Target Milestone:	---
Assigned To:	E-mail List
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Reported:	2015-11-30 12:11 UTC by Olli Tuominen
Modified:	2016-01-29 13:14 UTC (History)
CC List:	1 user (show)

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Description Olli Tuominen 2015-11-30 12:11:40 UTC

I get following error to journalctl:

marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: ThinkPad ACPI Extras v0.25
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: http://ibm-acpi.sf.net/
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: ThinkPad BIOS JBET52WW (1.17 ), EC unknown
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: Lenovo ThinkPad T450s, model 20BX000TMS
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@lists.sourceforge
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: radio switch found; radios are enabled
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the AC
marras 16 22:19:09 linux-it72 kernel: thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...

The internal laptop display brightness control works but not the external on docking.

Comment 1 Takashi Iwai 2015-11-30 12:34:40 UTC

It's fine as long as the backlight control actually works, please just ignore the message.  The upstream has a patch to downgrade the printk level from error to info.  I backported the patch now.

The external output has never brightness control, so it's no issue.

Comment 2 Swamp Workflow Management 2016-01-29 13:14:38 UTC

openSUSE-SU-2016:0280-1: An update that solves 10 vulnerabilities and has 18 fixes is now available.

Category: security (important)
Bug References: 865096,865259,913996,950178,950998,952621,954324,954532,954647,955422,956708,957152,957988,957990,958439,958463,958504,958510,958886,958951,959190,959399,960021,960710,961263,961509,962075,962597
CVE References: CVE-2015-7550,CVE-2015-8539,CVE-2015-8543,CVE-2015-8550,CVE-2015-8551,CVE-2015-8552,CVE-2015-8569,CVE-2015-8575,CVE-2015-8767,CVE-2016-0728
Sources used:
openSUSE Leap 42.1 (src):    kernel-debug-4.1.15-8.1, kernel-default-4.1.15-8.1, kernel-docs-4.1.15-8.3, kernel-ec2-4.1.15-8.1, kernel-obs-build-4.1.15-8.2, kernel-obs-qa-4.1.15-8.1, kernel-obs-qa-xen-4.1.15-8.1, kernel-pae-4.1.15-8.1, kernel-pv-4.1.15-8.1, kernel-source-4.1.15-8.1, kernel-syms-4.1.15-8.1, kernel-vanilla-4.1.15-8.1, kernel-xen-4.1.15-8.1