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Some Ubuntu-versions ago, there was a Popup that showed up while changing the brightness on my Asus V6V with FN+Key. It has been gone since (I guess) 9.04. When changing the Audio-Volume, I still have such a thing.

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How can I get this back/working again?

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  • I dont think,it's an ubuntu feauture..Your laptop might have some drivers for that..
    – karthick87
    Dec 30, 2010 at 20:29
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    @karthick87 this is what he means: i.imgur.com/BKqfl.png added a screen shot to the question - revert if I made a mistake ;-) Dec 31, 2010 at 10:26
  • It's still here on my Asus UL20A running 10.10. Dec 31, 2010 at 10:51
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    You can press the brigthness adjustment keys and look in dmesg for ACPI related errors. Dec 31, 2010 at 10:56
  • The only interesting messages I get there are "asus_laptop: Error calling BSTS" and "asus_laptop: Error calling CWAP(1)" Jan 1, 2011 at 21:38

1 Answer 1

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If the brightness controls still work, but the display is missing, then it's possible that the keys are going directly to your hardware (bios perhaps) and not being interpreted by xinput or any of the input subsystem.

In both 10.04 and 10.10 the system will show a notification if the brightness is changed via an input.

If you upgraded, it could be a problem with the notifications.

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