Comment 3 for bug 292778

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Linard Verstraete (linardv) wrote :

Do I understand this correctly, if I say there are more then 1 listeners for the FN-keys?
One listener is hald-addon-dell-backlight and if you kill it, hitting FN-keys will still work because another listener will capture the event. That would explain why killing hald-addon-dell-backlight keeps it working.

A second thing why I thought revision was needed, is the fact that hitting the FN-keys once makes the brightness changes several levels. There are numerous bug reports about this like bug #207473, in my personal case it changes with steps of 4 levels. A small test reveals that if I kill hald-addon-dell-backlight process it still changes by 4 levels. So hald-addon-dell-backlight can't have anything to do with this, right?

But this makes me question: if hitting FN-keys are properly handled without hald-addon-dell-backlight, why does it still exists? (Without it would save us resources and it would be a process less that needed to be started upon boot-time.)