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#1 2018-02-24 11:58:12

ShFil
Member
Registered: 2016-02-01
Posts: 3

Cannot set brightness using keyboard 8460p kde

Hi, after a recent update, when I'm trying to set brightness using keyboard, I'm not able to set 100% power of backlight. Additionally at the time of pressing key, brightness is jumping for a second.

Using "tee /sys/class/backlight/acpi_video0/brightness <<< 5" works, additionally tracking journalctl it looks like it's problem with interpretation of key strokes or their manager.
Looking forward for help. wink Thx.

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#2 2018-02-24 14:12:32

seth
Member
Registered: 2012-09-03
Posts: 49,992

Re: Cannot set brightness using keyboard 8460p kde

set brightness using keyboard

And what does "set brightness using keyboard" do? Does it call xbacklight, is it bound to some action of your desktop environment (which?), ...?

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#3 2018-02-24 16:58:45

ShFil
Member
Registered: 2016-02-01
Posts: 3

Re: Cannot set brightness using keyboard 8460p kde

In journal I see:
Feb 24 17:55:12 Red kscreen_backend_launcher[1450]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored)
Feb 24 17:55:12 Red kscreen_backend_launcher[1450]: kscreen.xcb.helper:         Output:  66
Feb 24 17:55:12 Red kscreen_backend_launcher[1450]: kscreen.xcb.helper:         Property:  Backlight
Feb 24 17:55:12 Red kscreen_backend_launcher[1450]: kscreen.xcb.helper:         State (newValue, Deleted):  0

My de is kde, laptop hp elitebook 8460p. Red is name of pc.
Edit. Hmm, I think I created thread in subforum about laptops. Maybe I made a mistake.

Last edited by ShFil (2018-02-24 17:01:08)

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#4 2018-02-24 17:49:51

seth
Member
Registered: 2012-09-03
Posts: 49,992

Re: Cannot set brightness using keyboard 8460p kde

Looks like https://bugs.kde.org/show_bug.cgi?id=368221 (though different HW)

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