Brightness control?

[Beartooth]

	I put a launcher (whose "about" link calls it "xfce4-brightness-
plugin 1.2.0," and points to http://goodies.xfce.org) onto a Fedora.xfce 
panel.

	The image looks like the helm pf a ship, with a large red circle 
in the middle, containing a white exclamation point. Sure enough, 
hovering the mouse cursor over it gets a message saying "No device 
found", and left-clicking it does nothing. Right-clicking gets a grey box 
with the top line (saying "Brightness plugin") grayed out.

	Is there in fact a brightness control in Fedora xfce? How do you 
invoke it?

-- 
Beartooth Staffwright, Neo-Redneck Not Quite Clueless Power User
Remember I have precious (very precious!) little idea where up is.

[Kevin Fenzi]

On Sun, 8 Dec 2013 17:01:31 +0000 (UTC)
Beartooth <beartooth(a)comcast.net&gt; wrote:

>  
>  
>  	I put a launcher (whose "about" link calls it
>  "xfce4-brightness- plugin 1.2.0," and points to
>  http://goodies.xfce.org) onto a Fedora.xfce panel.
>  
>  	The image looks like the helm pf a ship, with a large red
>  circle in the middle, containing a white exclamation point. Sure
>  enough, hovering the mouse cursor over it gets a message saying "No
>  device found", and left-clicking it does nothing. Right-clicking gets
>  a grey box with the top line (saying "Brightness plugin") grayed out.
>  
>  	Is there in fact a brightness control in Fedora xfce? How do
>  you invoke it? 
xfce4-power-manager should handle the brightness buttons. Does your
machine have buttons for up/down brightness? Or are you looking for a
purely software control for them?

There's also xbacklight command line... 

kevin

[Beartooth]

On Mon, 09 Dec 2013 09:38:19 -0700, Kevin Fenzi wrote:

>  On Sun, 8 Dec 2013 17:01:31 +0000 (UTC)
>  Beartooth <beartooth(a)comcast.net&gt; wrote: 
 
> > 	Is there in fact a brightness control in Fedora xfce? How do
> > you invoke it?
>  
>  xfce4-power-manager should handle the brightness buttons.  
	I saw no sign of them there.

>  Does your machine have buttons for up/down brightness? Or are you    
>   
>  looking for a purely software control for them? 
	I do have buttons, but I don't see any effect.
 
>  There's also xbacklight command line... 
	I didn't have that; but yum installed it. It didn't put it into 
the power manager, though. Maybe it's in need of a logout?

-- 
Beartooth Staffwright, Neo-Redneck Not Quite Clueless Power User
Remember I have precious (very precious!) little idea where up is.

[Kevin Fenzi]

On Mon, 9 Dec 2013 18:20:49 +0000 (UTC)
Beartooth <beartooth(a)comcast.net&gt; wrote:

>  On Mon, 09 Dec 2013 09:38:19 -0700, Kevin Fenzi wrote:
>  
>  > On Sun, 8 Dec 2013 17:01:31 +0000 (UTC)
>  > Beartooth <beartooth(a)comcast.net&gt; wrote:
>   
>  >> 	Is there in fact a brightness control in Fedora xfce? How
>  >> do you invoke it?
>  > 
>  > xfce4-power-manager should handle the brightness buttons. 
>  
>  	I saw no sign of them there. 
Well, you shouldn't have to do anything. As long as xfce4-power-manager
is running the buttons normally work. :( 

>  > Does your machine have buttons for up/down brightness? Or are
>  > you looking for a purely software control for them?
>  
>  	I do have buttons, but I don't see any effect. 
ok. 

>  > There's also xbacklight command line...
>  
>  	I didn't have that; but yum installed it. It didn't put it
>  into the power manager, though. Maybe it's in need of a logout? 
Thats a seperate command line utility. You run it from a shell... 

xbacklight -set 10

(sets the brightness to 10%)

If that doesn't work, it would seem to me to be a kernel issue, not
detecting the backlight at all. 

kevin