Bug 212786

Summary: Screen brightness buttons do not trigger event HP 8460p
Product: Base System Reporter: Edgar Salgado <edsalsen+freebsd>
Component: confAssignee: freebsd-bugs (Nobody) <bugs>
Status: New ---    
Severity: Affects Only Me CC: edsalsen+freebsd
Priority: ---    
Version: 11.0-RC1   
Hardware: amd64   
OS: Any   

Description Edgar Salgado 2016-09-18 07:55:40 UTC 
I FreeBSD 11.0-RC3, 
I can change screen brightness with sysctl:

root@bsd-esalgado:/usr/home/esalgado # sysctl hw.acpi.video.lcd0.brightness=60
hw.acpi.video.lcd0.brightness: 70 -> 60

When pushing screen brightness control buttons, nothing happens.

Using xev, I can see that no event is triggered when pushing those buttons:

KeyPress event, serial 36, synthetic NO, window 0x2000001,
    root 0xb6, subw 0x0, time 613282, (166,-15), root:(427,234),
    state 0x0, keycode 146 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 36, synthetic NO, window 0x2000001,
    root 0xb6, subw 0x0, time 613383, (166,-15), root:(427,234),
    state 0x0, keycode 146 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyPress event, serial 36, synthetic NO, window 0x2000001,
    root 0xb6, subw 0x0, time 613858, (166,-15), root:(427,234),
    state 0x0, keycode 151 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 36, synthetic NO, window 0x2000001,
    root 0xb6, subw 0x0, time 613941, (166,-15), root:(427,234),
    state 0x0, keycode 151 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False