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[Bug 717959] New: Thinkpad - Brightness Control takes two steps
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 15 Sep 2011 06:02:54 +0000
  • Message-id: <>

Summary: Thinkpad - Brightness Control takes two steps
Classification: openSUSE
Product: openSUSE 12.1
Version: Milestone 5
Platform: x86-64
OS/Version: SuSE Other
Status: NEW
Severity: Minor
Priority: P5 - None
Component: Mobile Devices
AssignedTo: mobile-bugs@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: user2304@xxxxxx
QAContact: qa@xxxxxxx
Found By: ---
Blocker: ---

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20100101

Buttons for Brightness-Control FN+POS1 and FN+End trigger two events:

Brightness up

ibm/hotkey HKEY 00000080 00001010
video LCD0 00000086 00000000

Brightness down

ibm/hotkey HKEY 00000080 00001011
video LCD0 00000087 00000000

In consequence, brightness is always changed by two steps.

Reproducible: Always

Steps to Reproduce:
1. Press FN+POS1 / FN+END
Actual Results:
1. Brightness changes two steps every keypress

Expected Results:
1. Brightness changes one step every keypress

After configuring the thinkpad_acpi options in
/etc/modprobe.d/50-thinkpad_acpi.conf with an alternative keymask (e.g.
hotkey=0x080c), just one Keyevent is triggered:

video LCD0 00000086 00000000 or
video LCD0 00000087 00000000

and brightness is changed by one step each keypress.

Unfortunately, by using this workaround, KDE won't show the
brightness-level-onscreen-menu anymore.

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