I'm testing the gutsy release (i forgot which version but it must be a
fairy recent one gutsy-desktop-i386.iso
a598c81b75d68353c23508d1d50ee26c), and here are my results:
- it's a bit better - Fn+Home(brighten) and Fn+End(darken) no longer
toggles between lcd and vga-out,
- the brightness level itself does not change after pressing the keys
mentioned above - a brightness popup appears (not always) but there is
no permanent change. There is a slight (<0.5s) change in brightness but
it quickly returns to the previous state (my wild guess: a hardware
changes the brightness but is overriden by software setting).
In text mode (outside of X) the brightness (still) can be changed
freely. - after returning to X the brightness popup appears.
Sometimes the brightness popup doesn't disappear by itself, only after
pressing Fn+Home or Fn+End.
The gnome brightness applet works better in this release - the
brightness level can be easily changed and it stays at the chosen value.
The mouse wheel also does the job. The slider changes the brightness of
the display and shows brightness popup with correct setting. Once I've
found some kind of problem with clicking on the vertical slider - it
almost always disappeared before click was finished. Most of the time it
just works.
There are still some issues with this applet. After setting brightness
with the applet to medium level, any press of Fn+Home or Fn+End always
gives full brightness, and the brightness slider position(applet) is not
updated to reflect current brightness.
There is no /proc/acpi/ibm directory and I can't find appropriate kernel
module to make it appear.
I've tested the keys with xev. The brighten/darken keys rarely show any
result. Most of the time there is no new messages from xev (despite that
ibm_keyboard_lamp Fn+PgUp always show events). In the rare moments that
an event is recorded a brightness popup appears as well. The events for
Fn+End are:
KeyPress event, serial 31, synthetic NO, window 0x3400001,
root 0x67, subw 0x3400002, time 1966184626, (54,37), root:(866,161),
state 0x0, keycode 101 (keysym 0x0, NoSymbol), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 31, synthetic NO, window 0x3400001,
root 0x67, subw 0x3400002, time 1966184626, (54,37), root:(866,161),
state 0x0, keycode 101 (keysym 0x0, NoSymbol), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
--- and for Fn+Home: ---
KeyPress event, serial 31, synthetic NO, window 0x3400001,
root 0x67, subw 0x3400002, time 1966575811, (62,30), root:(874,154),
state 0x0, keycode 212 (keysym 0x0, NoSymbol), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 31, synthetic NO, window 0x3400001,
root 0x67, subw 0x3400002, time 1966575811, (62,30), root:(874,154),
state 0x0, keycode 212 (keysym 0x0, NoSymbol), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
The hardware sound volume keys still work, are more consistent (number of steps
"up" is equal to "down") and show new semi-transparent (but IMHO way too big)
popup. They also give output in xev.
--
hardware brightness keys on lenovo R60e are working "strange" in gnome
https://bugs.launchpad.net/bugs/90925
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